Pub Date : 1994-10-30DOI: 10.1109/DASC.1994.369486
E. M. Scheidemandel
Honeywell Air Transport Systems has developed a means for allowing airlines to customize the operation of on-board flight deck communications software for the Boeing 777. The airlines will use a high level programming language to describe the desired logic of the function on a ground-based workstation, which translates it into a set of airplane-loadable low level commands. Once loaded on the plane, this data is verified and processed to perform the user-specified flight deck operations. By providing the airlines with a programmable communications system, Honeywell provides the users with flexibility to make changes when they need them without costly on-board software changes and re-certification procedures.<>
{"title":"Providing a high level language to produce user-modifiable airborne software","authors":"E. M. Scheidemandel","doi":"10.1109/DASC.1994.369486","DOIUrl":"https://doi.org/10.1109/DASC.1994.369486","url":null,"abstract":"Honeywell Air Transport Systems has developed a means for allowing airlines to customize the operation of on-board flight deck communications software for the Boeing 777. The airlines will use a high level programming language to describe the desired logic of the function on a ground-based workstation, which translates it into a set of airplane-loadable low level commands. Once loaded on the plane, this data is verified and processed to perform the user-specified flight deck operations. By providing the airlines with a programmable communications system, Honeywell provides the users with flexibility to make changes when they need them without costly on-board software changes and re-certification procedures.<<ETX>>","PeriodicalId":246447,"journal":{"name":"AIAA/IEEE Digital Avionics Systems Conference. 13th DASC","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117328193","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 : 1994-10-30DOI: 10.1109/DASC.1994.369423
P. A. Izzo
This paper focuses on the applicability of a machine-executable specification, specifically the IEEE Futurebus+ Specification, towards a modeling methodology that makes interoperability analysis an inherent part of system design and validation.<>
{"title":"Futurebus+ as a machine-executable specification promotes interoperability","authors":"P. A. Izzo","doi":"10.1109/DASC.1994.369423","DOIUrl":"https://doi.org/10.1109/DASC.1994.369423","url":null,"abstract":"This paper focuses on the applicability of a machine-executable specification, specifically the IEEE Futurebus+ Specification, towards a modeling methodology that makes interoperability analysis an inherent part of system design and validation.<<ETX>>","PeriodicalId":246447,"journal":{"name":"AIAA/IEEE Digital Avionics Systems Conference. 13th DASC","volume":"207 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114598434","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 : 1994-10-30DOI: 10.1109/DASC.1994.369497
M. Shoucri, R. Davidheiser, B. Hauss, P. Lee, M. Mussetto, S. Young, L. Yujiri
Fog and low visibility conditions have hampered aviation since its inception. Fog-related accidents are numerous, and canceled take-offs and landings due to fog and low visibility conditions (Cat III) have significant economic impact on airlines, parcel carriers and general aviation. Millimeter waves have good propagation properties in weather and give adequate spatial resolution when used to image the forward scene. Passive millimeter wave focal plane array cameras are new sensors which, integrated into future guidance and landing systems, promise to be an effective aid, or alternative, to existing technology for aircraft landings and take-offs under Cat III conditions. They can produce visual-like radiometric images at real time frame rates (30 Hz), which can be directly fused with infrared and visible images. TRW has been actively involved in developing and manufacturing this technology both at the hardware and the system levels.<>
{"title":"A passive millimeter wave camera for landing in low visibility conditions","authors":"M. Shoucri, R. Davidheiser, B. Hauss, P. Lee, M. Mussetto, S. Young, L. Yujiri","doi":"10.1109/DASC.1994.369497","DOIUrl":"https://doi.org/10.1109/DASC.1994.369497","url":null,"abstract":"Fog and low visibility conditions have hampered aviation since its inception. Fog-related accidents are numerous, and canceled take-offs and landings due to fog and low visibility conditions (Cat III) have significant economic impact on airlines, parcel carriers and general aviation. Millimeter waves have good propagation properties in weather and give adequate spatial resolution when used to image the forward scene. Passive millimeter wave focal plane array cameras are new sensors which, integrated into future guidance and landing systems, promise to be an effective aid, or alternative, to existing technology for aircraft landings and take-offs under Cat III conditions. They can produce visual-like radiometric images at real time frame rates (30 Hz), which can be directly fused with infrared and visible images. TRW has been actively involved in developing and manufacturing this technology both at the hardware and the system levels.<<ETX>>","PeriodicalId":246447,"journal":{"name":"AIAA/IEEE Digital Avionics Systems Conference. 13th DASC","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115912908","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 : 1994-10-30DOI: 10.1109/DASC.1994.369490
G. Peterson
This paper describes an inexpensive serial medium-speed control and data bus (with optional redundancy) designed for use in airframes. The advantages of using a bus (significant reduction in the wire count, wiring weight, and wiring complexity for airframes) are discussed briefly, The choice of low cost, readily available technologies is justified. System design decisions are reviewed with some emphasis on the economic aspects of the decisions. Physical and logical aspects of signaling are discussed. The limitations of the bus are discussed (e.g. node count, bus length, bus topology, message rates, etc.). Type and functions of typical nodes are listed. Several examples are presented in some detail, e.g. the landing gear system and the trim system. The project history is outlined and future directions are discussed.<>
{"title":"A low-cost serial control and data bus for airframes","authors":"G. Peterson","doi":"10.1109/DASC.1994.369490","DOIUrl":"https://doi.org/10.1109/DASC.1994.369490","url":null,"abstract":"This paper describes an inexpensive serial medium-speed control and data bus (with optional redundancy) designed for use in airframes. The advantages of using a bus (significant reduction in the wire count, wiring weight, and wiring complexity for airframes) are discussed briefly, The choice of low cost, readily available technologies is justified. System design decisions are reviewed with some emphasis on the economic aspects of the decisions. Physical and logical aspects of signaling are discussed. The limitations of the bus are discussed (e.g. node count, bus length, bus topology, message rates, etc.). Type and functions of typical nodes are listed. Several examples are presented in some detail, e.g. the landing gear system and the trim system. The project history is outlined and future directions are discussed.<<ETX>>","PeriodicalId":246447,"journal":{"name":"AIAA/IEEE Digital Avionics Systems Conference. 13th DASC","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116433852","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 : 1994-10-30DOI: 10.1109/DASC.1994.369496
R. Weber, K. Thelen, A. Srivastava, J. Krueger
This paper describes our experience with requirements-based validation test generation of Electronic Flight Instrumentation System (EFIS) software for small commercial jets. In 1992, Honeywell Technology Center (HTC) began a long-term project to develop a fine-grained EFIS requirements domain model using object-oriented techniques. Our long-range objectives were to automate the generation of software life-cycle artifacts such as system requirements documentation, test matrix, test software, and graphical prototypes based on the EFIS requirements model and demonstrate their reusability across various products. In 1993, to help justify the continuation of the work, we established a short-term objective of automatically generating requirements-based tests used in the V&V of the aircraft display software. We developed rule-based requirements models that described both the static and dynamic characteristics of the aircraft display system. The test generator algorithms used these rule-based requirements models along with information about the testing apparatus and policy-rich testing methodology to automatically generate test plans, automated test equipment (ATE) code, and expected test results. This paper focuses on our process of automating V&V test artifacts, the challenges we faced, the algorithms we developed, and the benefits we realized. We'll also briefly discuss our ongoing efforts in automating additional display software life-cycle artifacts.<>
{"title":"Automated validation test generation","authors":"R. Weber, K. Thelen, A. Srivastava, J. Krueger","doi":"10.1109/DASC.1994.369496","DOIUrl":"https://doi.org/10.1109/DASC.1994.369496","url":null,"abstract":"This paper describes our experience with requirements-based validation test generation of Electronic Flight Instrumentation System (EFIS) software for small commercial jets. In 1992, Honeywell Technology Center (HTC) began a long-term project to develop a fine-grained EFIS requirements domain model using object-oriented techniques. Our long-range objectives were to automate the generation of software life-cycle artifacts such as system requirements documentation, test matrix, test software, and graphical prototypes based on the EFIS requirements model and demonstrate their reusability across various products. In 1993, to help justify the continuation of the work, we established a short-term objective of automatically generating requirements-based tests used in the V&V of the aircraft display software. We developed rule-based requirements models that described both the static and dynamic characteristics of the aircraft display system. The test generator algorithms used these rule-based requirements models along with information about the testing apparatus and policy-rich testing methodology to automatically generate test plans, automated test equipment (ATE) code, and expected test results. This paper focuses on our process of automating V&V test artifacts, the challenges we faced, the algorithms we developed, and the benefits we realized. We'll also briefly discuss our ongoing efforts in automating additional display software life-cycle artifacts.<<ETX>>","PeriodicalId":246447,"journal":{"name":"AIAA/IEEE Digital Avionics Systems Conference. 13th DASC","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115097795","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 : 1994-10-30DOI: 10.1109/DASC.1994.369444
S. Keane
Heterogeneous processing systems have long been used for the design of avionics architectures. Until recently, this architecture took the form of federated or "black box" systems. Advanced architectures characterized by terms such as integrated open systems, and modular avionics, are now being adopted by the DoD. Consistent with new hardware designs, are burgeoning software technologies. These include megaprogramming, and programming in the large, and object-oriented development, and a host of design methodologies. This paper attempts to reconcile these often divergent technologies given the real-time rigors of Digital Signal Processing (DSP) applications and the mandate to use the Ada programming language. Beginning with an overview of the state of DSP and software methodologies, Ada program building blocks are then presented with the unique intent of defining reusable software components for any platform of heterogeneous distributed embedded processors.<>
{"title":"Realization of an Ada architecture for heterogenous distributed embedded processors","authors":"S. Keane","doi":"10.1109/DASC.1994.369444","DOIUrl":"https://doi.org/10.1109/DASC.1994.369444","url":null,"abstract":"Heterogeneous processing systems have long been used for the design of avionics architectures. Until recently, this architecture took the form of federated or \"black box\" systems. Advanced architectures characterized by terms such as integrated open systems, and modular avionics, are now being adopted by the DoD. Consistent with new hardware designs, are burgeoning software technologies. These include megaprogramming, and programming in the large, and object-oriented development, and a host of design methodologies. This paper attempts to reconcile these often divergent technologies given the real-time rigors of Digital Signal Processing (DSP) applications and the mandate to use the Ada programming language. Beginning with an overview of the state of DSP and software methodologies, Ada program building blocks are then presented with the unique intent of defining reusable software components for any platform of heterogeneous distributed embedded processors.<<ETX>>","PeriodicalId":246447,"journal":{"name":"AIAA/IEEE Digital Avionics Systems Conference. 13th DASC","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115519428","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 : 1994-10-30DOI: 10.1109/DASC.1994.369508
T. Fritz, L. Gallarneau, D. Pledger
As emphasis shifts from large, expensive multipurpose satellites to lighter and less expensive vehicles dedicated to a narrower range of activities, the size, weight and cost of housekeeping components become increasingly significant. This is particularly the case for the attitude reference system. If a traditional system is used for a small satellite, its cost and weight can become a significant fraction of the satellite's total. The ERADS (Earth Reference Attitude Determination System) sensor was designed to provide a significantly lighter and lower cost three axis reference with an accuracy adequate for most missions. The approach was to image a wide field of view with a small optical assembly to achieve a combination of Earth and star viewing. Achievement of this objective required some innovative technical developments.<>
{"title":"3-axis ultraviolet attitude reference sensor","authors":"T. Fritz, L. Gallarneau, D. Pledger","doi":"10.1109/DASC.1994.369508","DOIUrl":"https://doi.org/10.1109/DASC.1994.369508","url":null,"abstract":"As emphasis shifts from large, expensive multipurpose satellites to lighter and less expensive vehicles dedicated to a narrower range of activities, the size, weight and cost of housekeeping components become increasingly significant. This is particularly the case for the attitude reference system. If a traditional system is used for a small satellite, its cost and weight can become a significant fraction of the satellite's total. The ERADS (Earth Reference Attitude Determination System) sensor was designed to provide a significantly lighter and lower cost three axis reference with an accuracy adequate for most missions. The approach was to image a wide field of view with a small optical assembly to achieve a combination of Earth and star viewing. Achievement of this objective required some innovative technical developments.<<ETX>>","PeriodicalId":246447,"journal":{"name":"AIAA/IEEE Digital Avionics Systems Conference. 13th DASC","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128852730","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 : 1994-10-30DOI: 10.1109/DASC.1994.369463
D. L. Welch
This paper briefly discusses the role of human factors engineering in the early phases of system development. The concept of system functions is discussed, along with a description of the human factors processes of function analysis and function allocation and how the inclusion of human engineering representation on the design team can enhance achieved design. Finally, an example of system enhancement through function re-allocation is provided.<>
{"title":"Design enhancement through human factored function allocation","authors":"D. L. Welch","doi":"10.1109/DASC.1994.369463","DOIUrl":"https://doi.org/10.1109/DASC.1994.369463","url":null,"abstract":"This paper briefly discusses the role of human factors engineering in the early phases of system development. The concept of system functions is discussed, along with a description of the human factors processes of function analysis and function allocation and how the inclusion of human engineering representation on the design team can enhance achieved design. Finally, an example of system enhancement through function re-allocation is provided.<<ETX>>","PeriodicalId":246447,"journal":{"name":"AIAA/IEEE Digital Avionics Systems Conference. 13th DASC","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129489405","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 : 1994-10-30DOI: 10.1109/DASC.1994.369492
C. Boettcher, E. Trujillo
Modern avionics systems are capable of gathering massive amounts of data. Transforming that data into information that enhances situation awareness and improves the mission success rate is a major challenge of the 1990's and beyond. To reduce software complexity and life cycle costs, while realizing the performance improvements possible with information sharing, innovative approaches to data management for real-time avionic systems are needed The breakthrough discussed in this article uses an indepth understanding of avionics to adapt well proven data management principles to the avionics arena and exploit new software paradigms, including object-oriented data management.<>
{"title":"Avionics breakthrough in information sharing","authors":"C. Boettcher, E. Trujillo","doi":"10.1109/DASC.1994.369492","DOIUrl":"https://doi.org/10.1109/DASC.1994.369492","url":null,"abstract":"Modern avionics systems are capable of gathering massive amounts of data. Transforming that data into information that enhances situation awareness and improves the mission success rate is a major challenge of the 1990's and beyond. To reduce software complexity and life cycle costs, while realizing the performance improvements possible with information sharing, innovative approaches to data management for real-time avionic systems are needed The breakthrough discussed in this article uses an indepth understanding of avionics to adapt well proven data management principles to the avionics arena and exploit new software paradigms, including object-oriented data management.<<ETX>>","PeriodicalId":246447,"journal":{"name":"AIAA/IEEE Digital Avionics Systems Conference. 13th DASC","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127159044","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 : 1994-10-30DOI: 10.1109/DASC.1994.369485
W. Terry
This paper describes the next generation avionics system to be integrated into the United States Navy (USN) Multi-Mission Helicopter (MMII)-which replaces both the SH-60B and the SH-60F in 2001. The MMII avionics system is a very high performance adaptable system which is intended to support the USN's needs for helicopter avionics through at least 2015. The system consists of a loosely coupled network of advanced mission and sensor processing elements which combines both distributed and federated architectural concepts. MMII also includes state-of-the-art sensors and an advanced Operator-System Interface. This paper presents the MMII avionics system architecture, key attributes of the system, and the extendibility of the basic architecture for future growth.<>
{"title":"Next generation naval helicopter avionics","authors":"W. Terry","doi":"10.1109/DASC.1994.369485","DOIUrl":"https://doi.org/10.1109/DASC.1994.369485","url":null,"abstract":"This paper describes the next generation avionics system to be integrated into the United States Navy (USN) Multi-Mission Helicopter (MMII)-which replaces both the SH-60B and the SH-60F in 2001. The MMII avionics system is a very high performance adaptable system which is intended to support the USN's needs for helicopter avionics through at least 2015. The system consists of a loosely coupled network of advanced mission and sensor processing elements which combines both distributed and federated architectural concepts. MMII also includes state-of-the-art sensors and an advanced Operator-System Interface. This paper presents the MMII avionics system architecture, key attributes of the system, and the extendibility of the basic architecture for future growth.<<ETX>>","PeriodicalId":246447,"journal":{"name":"AIAA/IEEE Digital Avionics Systems Conference. 13th DASC","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127695852","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}
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