Pub Date : 2017-07-24DOI: 10.1109/AHS.2017.8046347
M. Balas
Many control systems are inherently infinite dimensional when they are described by partial differential equations. Currently, there is renewed interest in the control of these kinds of systems, especially in the quantum information field. Since the dynamics of these systems will not be perfectly known, it is especially of interest to control these systems adaptively and even autonomously via low-order finite-dimensional controllers. In our work, we have developed direct model reference adaptive control and disturbance rejection with very low-order adaptive gain laws for infinite-dimensional systems on Hilbert spaces. Quantum Information Systems are fundamentally infinite dimensional. And the basic operations that can be performed on quantum systems to manipulate information are unitary quantum gates. Because of the nature of entanglement at the quantum level, these gates suffer from decoherence and cannot operate in a fully unitary way. It is also quite difficult to perform experiments that would identify all the parametric data needed to create precise models of a particular quantum system. Instead, direct adaptive control that is suited to infinite dimensional systems could provide a reduction in the decoherence and allow the quantum gates to function in a more idealized unitary way. This talk will focus on the effect of infinite dimensionality on the adaptive control approach and the conditions required for asymptotic stability with adaptive control. Then I would like to go on and consider some of the issues in the control of quantum information systems. The topics here may sound highly technical, but I hope to give you a version of them that will be reasonably accessible and will still remain as exciting and attractive to you as they are to me.
{"title":"Keynote address IV: The role of infinite dimensional direct adaptive control in autonomous systems and quantum information system","authors":"M. Balas","doi":"10.1109/AHS.2017.8046347","DOIUrl":"https://doi.org/10.1109/AHS.2017.8046347","url":null,"abstract":"Many control systems are inherently infinite dimensional when they are described by partial differential equations. Currently, there is renewed interest in the control of these kinds of systems, especially in the quantum information field. Since the dynamics of these systems will not be perfectly known, it is especially of interest to control these systems adaptively and even autonomously via low-order finite-dimensional controllers. In our work, we have developed direct model reference adaptive control and disturbance rejection with very low-order adaptive gain laws for infinite-dimensional systems on Hilbert spaces. Quantum Information Systems are fundamentally infinite dimensional. And the basic operations that can be performed on quantum systems to manipulate information are unitary quantum gates. Because of the nature of entanglement at the quantum level, these gates suffer from decoherence and cannot operate in a fully unitary way. It is also quite difficult to perform experiments that would identify all the parametric data needed to create precise models of a particular quantum system. Instead, direct adaptive control that is suited to infinite dimensional systems could provide a reduction in the decoherence and allow the quantum gates to function in a more idealized unitary way. This talk will focus on the effect of infinite dimensionality on the adaptive control approach and the conditions required for asymptotic stability with adaptive control. Then I would like to go on and consider some of the issues in the control of quantum information systems. The topics here may sound highly technical, but I hope to give you a version of them that will be reasonably accessible and will still remain as exciting and attractive to you as they are to me.","PeriodicalId":101545,"journal":{"name":"NASA/ESA Conference on Adaptive Hardware and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117004926","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-07-01DOI: 10.1109/AHS.2017.8046349
J. Goodman
John M. Goodman is a writer, designer, consultant, and inventor. Educated at Swarthmore College (B.A. in Physics with minors in Math and Chemistry) and Cornell University (Ph.D. in Physics with a minor in the History of Science and Technology), he has taught at a variety of high-profile institutions including Harvey Mudd College and California Institute of the Arts. He also has been a consultant to numerous organizations including Scientific American magazine, the Charles and Rae Eames design studio, and Intelligent Optical Systems, among others. He is an author (with eight published books and numerous articles, so far), an inventor, a grant writer, and has taught physical science, mathematics, computer science and practical computer maintenance in a wide range of venues. He was President of one of the largest computer user groups in the nation as well as a respected journalist writing for InfoWorld and Byte magazines. He also founded and ran an interactive science museum, The Experience Center, which was the predecessor to the Discovery Science Center (now Discovery Cube) in Santa Ana and Los Angeles, CA. He is a life member of Phi Beta Kappa and Sigma Xi and has at times been a member of the Association for Computing Machinery, American Association for the Advancement of Science, American Association of Museums, American Association of Physics Teachers, American Physical Society, Computer Press Association, Institute of Electrical and Electronic Engineers, Mensa, Museum Educators of Southern California, and the Orange County Arts Alliance.
{"title":"Banquet address","authors":"J. Goodman","doi":"10.1109/AHS.2017.8046349","DOIUrl":"https://doi.org/10.1109/AHS.2017.8046349","url":null,"abstract":"John M. Goodman is a writer, designer, consultant, and inventor. Educated at Swarthmore College (B.A. in Physics with minors in Math and Chemistry) and Cornell University (Ph.D. in Physics with a minor in the History of Science and Technology), he has taught at a variety of high-profile institutions including Harvey Mudd College and California Institute of the Arts. He also has been a consultant to numerous organizations including Scientific American magazine, the Charles and Rae Eames design studio, and Intelligent Optical Systems, among others. He is an author (with eight published books and numerous articles, so far), an inventor, a grant writer, and has taught physical science, mathematics, computer science and practical computer maintenance in a wide range of venues. He was President of one of the largest computer user groups in the nation as well as a respected journalist writing for InfoWorld and Byte magazines. He also founded and ran an interactive science museum, The Experience Center, which was the predecessor to the Discovery Science Center (now Discovery Cube) in Santa Ana and Los Angeles, CA. He is a life member of Phi Beta Kappa and Sigma Xi and has at times been a member of the Association for Computing Machinery, American Association for the Advancement of Science, American Association of Museums, American Association of Physics Teachers, American Physical Society, Computer Press Association, Institute of Electrical and Electronic Engineers, Mensa, Museum Educators of Southern California, and the Orange County Arts Alliance.","PeriodicalId":101545,"journal":{"name":"NASA/ESA Conference on Adaptive Hardware and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131725918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-07-01DOI: 10.1109/AHS.2017.8046345
L. Friedman
Co-founder of The Planetary Society, with Carl Sagan and Bruce C. Murray, he has been a guiding force with the Society for over 30 years and remains as excited as ever about humanity's journey into the solar system. His college career began when Sputnik launched the space age. Lou earned a B.S. in Applied Mathematics and Engineering Physics at the University of Wisconsin in 1961, followed by an M.S. in Engineering Mechanics at Cornell University in 1963. He earned his Ph.D. from the Aeronautics and Astronautics Department at M.I.T. in 1971 with a thesis on Extracting Scientific Information from Spacecraft Tracking Data. From 1963–1968, Lou worked at the AVCO Space Systems Division on both civilian and military space programs. The following decade, 1970–1980, found him at JPL, involved in planning deep space missions. His projects included Mariner-Venus-Mercury, the Grand Tour (Voyager), Venus Orbital Imaging Radar (Magellan), Halley Comet Rendezvous-Solar Sail, and the Mars Program. In 1978–79, Lou went to Washington, DC as the AIAA Congressional Fellow and worked on the staff of the subcommittee on Science, Technology, and Space of the Senate Committee on Commerce, Science and Transportation. He frequently returns to Washington, DC to testify to Congress regarding important issues concerning the space science community and the members of The Planetary Society. Although the solar sail never launched for Halley's Comet, the concept of using light to propel a spacecraft intrigued Lou so much that he wrote a book on the subject, Starsailing: Solar Sails and Interstellar Flight, and led Cosmos 1, the solar sail mission created by The Planetary Society and Cosmos Studios. He also conceived the Living Interplanetary Flight Experiment developed by The Planetary Society. Lou stepped down from the Executive Director position in 2010. Since then he has been co-leader of the Asteroid Redirect Mission program for the Keck Institute for Space Studies at Caltech and is completing a book that examines the future of human spaceflight from Mars to the stars. Dr. Friedman is a Corresponding Member of the International Academy of Astronautics.
{"title":"Keynote address II: Human space flight - From Mars to the stars","authors":"L. Friedman","doi":"10.1109/AHS.2017.8046345","DOIUrl":"https://doi.org/10.1109/AHS.2017.8046345","url":null,"abstract":"Co-founder of The Planetary Society, with Carl Sagan and Bruce C. Murray, he has been a guiding force with the Society for over 30 years and remains as excited as ever about humanity's journey into the solar system. His college career began when Sputnik launched the space age. Lou earned a B.S. in Applied Mathematics and Engineering Physics at the University of Wisconsin in 1961, followed by an M.S. in Engineering Mechanics at Cornell University in 1963. He earned his Ph.D. from the Aeronautics and Astronautics Department at M.I.T. in 1971 with a thesis on Extracting Scientific Information from Spacecraft Tracking Data. From 1963–1968, Lou worked at the AVCO Space Systems Division on both civilian and military space programs. The following decade, 1970–1980, found him at JPL, involved in planning deep space missions. His projects included Mariner-Venus-Mercury, the Grand Tour (Voyager), Venus Orbital Imaging Radar (Magellan), Halley Comet Rendezvous-Solar Sail, and the Mars Program. In 1978–79, Lou went to Washington, DC as the AIAA Congressional Fellow and worked on the staff of the subcommittee on Science, Technology, and Space of the Senate Committee on Commerce, Science and Transportation. He frequently returns to Washington, DC to testify to Congress regarding important issues concerning the space science community and the members of The Planetary Society. Although the solar sail never launched for Halley's Comet, the concept of using light to propel a spacecraft intrigued Lou so much that he wrote a book on the subject, Starsailing: Solar Sails and Interstellar Flight, and led Cosmos 1, the solar sail mission created by The Planetary Society and Cosmos Studios. He also conceived the Living Interplanetary Flight Experiment developed by The Planetary Society. Lou stepped down from the Executive Director position in 2010. Since then he has been co-leader of the Asteroid Redirect Mission program for the Keck Institute for Space Studies at Caltech and is completing a book that examines the future of human spaceflight from Mars to the stars. Dr. Friedman is a Corresponding Member of the International Academy of Astronautics.","PeriodicalId":101545,"journal":{"name":"NASA/ESA Conference on Adaptive Hardware and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115749033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-07-01DOI: 10.1109/AHS.2017.8046350
G. Swift
Gary M. Swift has spent the last twenty-five plus years going to accelerators and testing electrical components for their suitability for use in space radiation environments. Gary received a B.S. in Engineering Physics from the University of Oklahoma in 1975 and did graduate work in Nuclear Engineering at the University of Illinois at Urbana-Champaign. After almost two decades at NASA's Jet Propulsion Laboratory in Pasadena, he “retired” as a principal engineer in 2007, and moved to Xilinx, Inc. to help develop and test their space-worthy FPGAs. Currently, Gary is the Principal Engineer at the independent consulting firm Swift Engineering and Radiation Services, LLC which he founded, specializing in best-practice SEE testing of complex ICs such as FPGAs and microprocessors. He has publications on a broad range of radiation effects testing including total dose and displacement damage and many single-event effects; for example, in 1992, he coined the now widely used term SEFI. He is co-author on two paper papers that received the NSREC Outstanding Paper Award (in 1999 and 2015). Back in 2001, Gary, then at JPL, and Carl Carmichael of Xilinx started the Xilinx Radiation Test Consortium, a voluntary group of national labs, universities and aerospace companies that collaborate on SEE testing, and he has served as the XRTC main test coordinator and weekly telecom moderator to the present day.
加里·m·斯威夫特花了25年多的时间研究加速器，测试电子元件是否适合在太空辐射环境中使用。Gary于1975年获得俄克拉何马大学工程物理学学士学位，并在伊利诺伊大学厄巴纳-香槟分校的核工程专业完成研究生工作。在美国宇航局帕萨迪纳喷气推进实验室工作了近20年后，他于2007年“退休”，担任首席工程师，并前往赛灵思公司，帮助开发和测试他们的太空fpga。目前，Gary是他创立的独立咨询公司Swift Engineering and Radiation Services, LLC的首席工程师，专门从事复杂ic(如fpga和微处理器)的最佳实践SEE测试。他发表了广泛的辐射效应测试，包括总剂量和位移损伤以及许多单事件效应;例如，在1992年，他创造了现在广泛使用的术语SEFI。他是两篇获得NSREC杰出论文奖的论文的合著者(1999年和2015年)。早在2001年，当时在JPL的Gary和Xilinx的Carl Carmichael就成立了Xilinx辐射测试联盟，这是一个由国家实验室、大学和航空航天公司组成的自愿组织，他们合作进行SEE测试，他一直担任XRTC主要测试协调员和每周电信主持人。
{"title":"Invited talk I: The foundations of robustness in reconfigurability in a radiation environment: Understanding single-event effects test results on SRAM-based FPGAs","authors":"G. Swift","doi":"10.1109/AHS.2017.8046350","DOIUrl":"https://doi.org/10.1109/AHS.2017.8046350","url":null,"abstract":"Gary M. Swift has spent the last twenty-five plus years going to accelerators and testing electrical components for their suitability for use in space radiation environments. Gary received a B.S. in Engineering Physics from the University of Oklahoma in 1975 and did graduate work in Nuclear Engineering at the University of Illinois at Urbana-Champaign. After almost two decades at NASA's Jet Propulsion Laboratory in Pasadena, he “retired” as a principal engineer in 2007, and moved to Xilinx, Inc. to help develop and test their space-worthy FPGAs. Currently, Gary is the Principal Engineer at the independent consulting firm Swift Engineering and Radiation Services, LLC which he founded, specializing in best-practice SEE testing of complex ICs such as FPGAs and microprocessors. He has publications on a broad range of radiation effects testing including total dose and displacement damage and many single-event effects; for example, in 1992, he coined the now widely used term SEFI. He is co-author on two paper papers that received the NSREC Outstanding Paper Award (in 1999 and 2015). Back in 2001, Gary, then at JPL, and Carl Carmichael of Xilinx started the Xilinx Radiation Test Consortium, a voluntary group of national labs, universities and aerospace companies that collaborate on SEE testing, and he has served as the XRTC main test coordinator and weekly telecom moderator to the present day.","PeriodicalId":101545,"journal":{"name":"NASA/ESA Conference on Adaptive Hardware and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115388547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-07-01DOI: 10.1109/AHS.2017.8046344
R. Skelton
It is well-known that the various disciplines that design the individual components of the final system are not coordinated, except in an ad hoc way. This paper takes some steps toward the formal integration of Structure, Control, and Signal Processing designs. To integrate structure and control we employ the tensegrity structural paradigm. To integrate signal processing and control we employ the new work called Information Architecture, where the precisions and locations of all sensors and actuators are coordinated with the control design, which are all dictated by the closed loop performance requirements, including a cost constraint on the hardware. We assume that sensor or actuator costs are proportional to the precision of the instrument. The design constraints are: i) the cost of all sensors and actuators must be less than a specified budget, $, ii) the control energy must satisfy a specified upper-bound, U, iii) the closed loop performance must satisfy a specified covariance upper-bound, Y, of the output error, iv) adjustable parameters of the structure are coordinated with the joint structure/control design to achieve the required performance bounds, Y. Given a hardware budget $, and performance budgets U and Y, the paper shows what performance (Y) is achievable for a fixed cost $ and a fixed energy budget U. Alternatively, for a fixed performance and energy budget (Y, U) the paper shows the minimum hardware costs $ required to achieve this performance.
{"title":"Keynote address I: Tensegrity engineering: Integrating the design of structure, control, and signal processing","authors":"R. Skelton","doi":"10.1109/AHS.2017.8046344","DOIUrl":"https://doi.org/10.1109/AHS.2017.8046344","url":null,"abstract":"It is well-known that the various disciplines that design the individual components of the final system are not coordinated, except in an ad hoc way. This paper takes some steps toward the formal integration of Structure, Control, and Signal Processing designs. To integrate structure and control we employ the tensegrity structural paradigm. To integrate signal processing and control we employ the new work called Information Architecture, where the precisions and locations of all sensors and actuators are coordinated with the control design, which are all dictated by the closed loop performance requirements, including a cost constraint on the hardware. We assume that sensor or actuator costs are proportional to the precision of the instrument. The design constraints are: i) the cost of all sensors and actuators must be less than a specified budget, $, ii) the control energy must satisfy a specified upper-bound, U, iii) the closed loop performance must satisfy a specified covariance upper-bound, Y, of the output error, iv) adjustable parameters of the structure are coordinated with the joint structure/control design to achieve the required performance bounds, Y. Given a hardware budget $, and performance budgets U and Y, the paper shows what performance (Y) is achievable for a fixed cost $ and a fixed energy budget U. Alternatively, for a fixed performance and energy budget (Y, U) the paper shows the minimum hardware costs $ required to achieve this performance.","PeriodicalId":101545,"journal":{"name":"NASA/ESA Conference on Adaptive Hardware and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127810634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-07-01DOI: 10.1109/AHS.2017.8046346
J. Burdick
Approximately 5,000,000 worldwide suffer from a serious spinal cord injury (SCI). Not only do the injured lose the ability to stand and walk (and sometimes move their arms), they suffer from additional injury-induced complications including loss of bladder and bowel control, decreased cardiovascular and pulmonary health, inability to regulate body temperature, and loss of muscle strength and bone density. The totality of the injury and its secondary dysfunctions makes daily activities of living a challenge. Because the median age of SCI in the U.S. is 32 years, SCI individuals amass an additional $1.4–$4.2 million in healthcare costs over their lifetimes. A team of researchers at Caltech, UCLA, and Univ. of Louisville have been developing new technologies and new therapies for motor complete SCI patients — those who have lost motor control below the level of their injury. The centerpiece of this approach is a multi-electrode array that is implanted over the lumbosacral spinal cord either in in the epidural space between the dura and the interior of the vertebral canal, or on the skin over this area. When this technology is coupled with locomotor training and drug therapy (when possible), SCI patients receiving this therapy can stand independently and make some voluntary movements (after being in a wheel chair for over 3 years). More importantly, they can expect to make useful gains in cardiovascular health, muscle tone, as well as improved autonomic function such as bladder, bowel, blood pressure, and temperature regulation. After first reviewing our clinical successes, this talk will focus on current research on new machine algorithms for automated tuning of the stimuli parameters.
{"title":"Keynote address III: Recovery of function in major spinal cord injury using learning-guided spinal stimulation","authors":"J. Burdick","doi":"10.1109/AHS.2017.8046346","DOIUrl":"https://doi.org/10.1109/AHS.2017.8046346","url":null,"abstract":"Approximately 5,000,000 worldwide suffer from a serious spinal cord injury (SCI). Not only do the injured lose the ability to stand and walk (and sometimes move their arms), they suffer from additional injury-induced complications including loss of bladder and bowel control, decreased cardiovascular and pulmonary health, inability to regulate body temperature, and loss of muscle strength and bone density. The totality of the injury and its secondary dysfunctions makes daily activities of living a challenge. Because the median age of SCI in the U.S. is 32 years, SCI individuals amass an additional $1.4–$4.2 million in healthcare costs over their lifetimes. A team of researchers at Caltech, UCLA, and Univ. of Louisville have been developing new technologies and new therapies for motor complete SCI patients — those who have lost motor control below the level of their injury. The centerpiece of this approach is a multi-electrode array that is implanted over the lumbosacral spinal cord either in in the epidural space between the dura and the interior of the vertebral canal, or on the skin over this area. When this technology is coupled with locomotor training and drug therapy (when possible), SCI patients receiving this therapy can stand independently and make some voluntary movements (after being in a wheel chair for over 3 years). More importantly, they can expect to make useful gains in cardiovascular health, muscle tone, as well as improved autonomic function such as bladder, bowel, blood pressure, and temperature regulation. After first reviewing our clinical successes, this talk will focus on current research on new machine algorithms for automated tuning of the stimuli parameters.","PeriodicalId":101545,"journal":{"name":"NASA/ESA Conference on Adaptive Hardware and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127749330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-07-01DOI: 10.1109/AHS.2017.8046348
B. Wilcox
Brian is a JPL Fellow and the Manager of the JPL Space Robotics Technologies Program at JPL since 2010. He a B.S. Physics and B.A. Mathematics, University of California at Santa Barbara (highest honors) (1973) and a M.S. Electrical Engineering, University of Southern California (1993). In the 1980s he worked as robotics engineer assigned to Mars Rover Sample Return Mission. Between 1985 and 2005 he was the Supervisor, JPL Robotic Vehicles Group, during which time the group was responsible for the development of the Sojourner Mars Rover electronics, on-board software, mission operations software tool development, and the actual mission operations of Sojourner. Group members continued in similar key roles on MER and MSL rovers. Between 1995 and 2003 he was the Principal Investigator of the Nanorover and Nanorover Outposts and from 2004 to present, the Principal Investigator of the All-Terrain Hex-Limbed, Extra-Terrestrial Explorer (ATHLETE) which has six wheels on the ends of six limbs that can be used for general-purpose manipulation as well as extremeterrain mobility. He was awarded NASA Exceptional Engineering Achievement Medal, for contributions to planetary rover research in 1992.
Brian自2010年以来一直是JPL研究员和JPL空间机器人技术项目的经理。他在加州大学圣巴巴拉分校(University of California at Santa Barbara)获得物理学学士学位和数学学士学位(1973年)，并在南加州大学(University of Southern California)获得电气工程硕士学位(1993年)。在20世纪80年代，他作为机器人工程师被分配到火星探测器样本返回任务。1985年至2005年期间，他是JPL机器人车辆小组的主管，在此期间，该小组负责开发Sojourner火星漫游者电子设备、机载软件、任务操作软件工具开发和Sojourner的实际任务操作。小组成员继续在MER和MSL漫游车上担任类似的关键角色。从1995年到2003年，他是Nanorover和Nanorover前哨站的首席研究员，从2004年到现在，他是全地形六肢，外星探险家(ATHLETE)的首席研究员，该探险家的六个四肢末端有六个轮子，可用于通用操作以及极端地形移动。1992年，他被授予美国国家航空航天局杰出工程成就奖，以表彰他对行星漫游者研究的贡献。
{"title":"Keynote address V: Some ambitious NASA mission concepts","authors":"B. Wilcox","doi":"10.1109/AHS.2017.8046348","DOIUrl":"https://doi.org/10.1109/AHS.2017.8046348","url":null,"abstract":"Brian is a JPL Fellow and the Manager of the JPL Space Robotics Technologies Program at JPL since 2010. He a B.S. Physics and B.A. Mathematics, University of California at Santa Barbara (highest honors) (1973) and a M.S. Electrical Engineering, University of Southern California (1993). In the 1980s he worked as robotics engineer assigned to Mars Rover Sample Return Mission. Between 1985 and 2005 he was the Supervisor, JPL Robotic Vehicles Group, during which time the group was responsible for the development of the Sojourner Mars Rover electronics, on-board software, mission operations software tool development, and the actual mission operations of Sojourner. Group members continued in similar key roles on MER and MSL rovers. Between 1995 and 2003 he was the Principal Investigator of the Nanorover and Nanorover Outposts and from 2004 to present, the Principal Investigator of the All-Terrain Hex-Limbed, Extra-Terrestrial Explorer (ATHLETE) which has six wheels on the ends of six limbs that can be used for general-purpose manipulation as well as extremeterrain mobility. He was awarded NASA Exceptional Engineering Achievement Medal, for contributions to planetary rover research in 1992.","PeriodicalId":101545,"journal":{"name":"NASA/ESA Conference on Adaptive Hardware and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125247990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2015-06-15DOI: 10.1109/AHS.2015.7231168
S. Vakili, J. Langlois, G. Bois
This paper proposes a method to optimize application-specific microprocessors for fixed-point computations. Fixed-point word-length optimization is a well-known research area that aims to find the optimal trade-offs between accuracy and hardware cost in bitwidth allocation signals in fixed point circuits. This work proposes a methodology to combine word-length optimization with application-specific processor customization. The goal is to optimize the following parameters in the processor architecture: (1) datatype word-lengths, (2) size of register-files and (3) architecture of the functional units. Multi-level evolutionary algorithms are employed to perform the optimization. To facilitate evaluation, a new processor design environment was developed that supports necessary customization flexibility to realize and evaluate the proposed methodology. The experimental results show that for five evaluated benchmarks, the proposed methodology can reduce the number of consumed LUTs and flip-flops by an average of 11.9% and 5.1%, respectively, while reducing the latency by an average of 33.4%.
{"title":"Designing customized microprocessors for fixed-point computation","authors":"S. Vakili, J. Langlois, G. Bois","doi":"10.1109/AHS.2015.7231168","DOIUrl":"https://doi.org/10.1109/AHS.2015.7231168","url":null,"abstract":"This paper proposes a method to optimize application-specific microprocessors for fixed-point computations. Fixed-point word-length optimization is a well-known research area that aims to find the optimal trade-offs between accuracy and hardware cost in bitwidth allocation signals in fixed point circuits. This work proposes a methodology to combine word-length optimization with application-specific processor customization. The goal is to optimize the following parameters in the processor architecture: (1) datatype word-lengths, (2) size of register-files and (3) architecture of the functional units. Multi-level evolutionary algorithms are employed to perform the optimization. To facilitate evaluation, a new processor design environment was developed that supports necessary customization flexibility to realize and evaluate the proposed methodology. The experimental results show that for five evaluated benchmarks, the proposed methodology can reduce the number of consumed LUTs and flip-flops by an average of 11.9% and 5.1%, respectively, while reducing the latency by an average of 33.4%.","PeriodicalId":101545,"journal":{"name":"NASA/ESA Conference on Adaptive Hardware and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132492415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The history of water management in the Fertile Crescentis closely related to the religion. This is most clear in ancientEgyptin pharaonic time. The class of priests serving under the pharaoh had also many other administrative duties, they had good skill in science, collected hydrological and astronomical data and used it to levy taxes and predict the floods that irrigated the arable land. The special hydrological features of the riverNilemake it rather predictable in behavior compared to other major rivers of the region. In this social position the priests had great influence and could use it to stop the pharaoh Ikhnaton in his attempt to establish a monotheistic religion by ousting Amon-Ra and replacing him with Aton. Social life was very colorful at pharaohs’ court and the various arts and festivals flourished. The most remarkable of these was the Opet festival where pharaoh himself was the leading figure together with the statues of the gods. The festival was to last 10 days and during that time the riverNilewas to change color from grayish to reddish and thereby mark the beginning of the life-giving flood and bear witness to the good relations between the king and the divine powers. This kind of event, an annual prayer by the king to the gods for good harvest was well known in many societies, but it shows the remarkable skills of the Amon-Ra priest that they were ready to predict the onset of theNileflood within ten days and get away with it.
{"title":"Hydrological Science and Its Connection to Religion in Ancient Egypt under the Pharaohs","authors":"J. Elíasson","doi":"10.4236/AHS.2013.23019","DOIUrl":"https://doi.org/10.4236/AHS.2013.23019","url":null,"abstract":"The history of water management in the Fertile Crescentis closely related to the religion. This is most clear in ancientEgyptin pharaonic time. The class of priests serving under the pharaoh had also many other administrative duties, they had good skill in science, collected hydrological and astronomical data and used it to levy taxes and predict the floods that irrigated the arable land. The special hydrological features of the riverNilemake it rather predictable in behavior compared to other major rivers of the region. In this social position the priests had great influence and could use it to stop the pharaoh Ikhnaton in his attempt to establish a monotheistic religion by ousting Amon-Ra and replacing him with Aton. Social life was very colorful at pharaohs’ court and the various arts and festivals flourished. The most remarkable of these was the Opet festival where pharaoh himself was the leading figure together with the statues of the gods. The festival was to last 10 days and during that time the riverNilewas to change color from grayish to reddish and thereby mark the beginning of the life-giving flood and bear witness to the good relations between the king and the divine powers. This kind of event, an annual prayer by the king to the gods for good harvest was well known in many societies, but it shows the remarkable skills of the Amon-Ra priest that they were ready to predict the onset of theNileflood within ten days and get away with it.","PeriodicalId":101545,"journal":{"name":"NASA/ESA Conference on Adaptive Hardware and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134551356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-02-01DOI: 10.1109/AHS.2017.8046351
M. Russell
Life was driven into being on our planet to resolve the disequilibria between the fuels hydrogen and methane emanating from submarine alkaline springs, as against the carbon dioxide dissolved in the acidulous ocean from the atmosphere. The two fluids were kept at bay by the precipitation of iron minerals at the spring. It was in the mineral barriers that this free energy was first converted via a protometabolism to organic molecules. Thus, we can say that life hydrogenated, and still hydrogenates, carbon dioxide. Therefore, we may expect life to emerge on any wet and rocky world that has a partly carbon dioxide-rich ocean. One possible example is on Europa (see Figure). It should reveal itself either as whole cells or as bioorganic molecules that themselves are far-from-thermodynamic equilibrium.
{"title":"Invited talk II: Why does life start, what does it do, where will it be, and how might we find it?","authors":"M. Russell","doi":"10.1109/AHS.2017.8046351","DOIUrl":"https://doi.org/10.1109/AHS.2017.8046351","url":null,"abstract":"Life was driven into being on our planet to resolve the disequilibria between the fuels hydrogen and methane emanating from submarine alkaline springs, as against the carbon dioxide dissolved in the acidulous ocean from the atmosphere. The two fluids were kept at bay by the precipitation of iron minerals at the spring. It was in the mineral barriers that this free energy was first converted via a protometabolism to organic molecules. Thus, we can say that life hydrogenated, and still hydrogenates, carbon dioxide. Therefore, we may expect life to emerge on any wet and rocky world that has a partly carbon dioxide-rich ocean. One possible example is on Europa (see Figure). It should reveal itself either as whole cells or as bioorganic molecules that themselves are far-from-thermodynamic equilibrium.","PeriodicalId":101545,"journal":{"name":"NASA/ESA Conference on Adaptive Hardware and Systems","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116518825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：