Two classical aspects of signal processing for a monostatic radar are extended to a bistatic radar. These are the determination of target range and relative velocity when using a continuous-wave (CW) transmitter. A simple moving-target indicator using the chirp Z-transform is used to determine the velocity while reducing clutter. A digital phase detector provides the range measurement. The application discussed is the detection of a single target that has jamming capabilities. The bistatic radar has inherent advantages against such a target due to the receiver site being passive and the basic geometry of the radar system.<>
{"title":"Signal processing considerations for an application of bistatic radar","authors":"C. A. Mcallister","doi":"10.1109/REG5.1988.15897","DOIUrl":"https://doi.org/10.1109/REG5.1988.15897","url":null,"abstract":"Two classical aspects of signal processing for a monostatic radar are extended to a bistatic radar. These are the determination of target range and relative velocity when using a continuous-wave (CW) transmitter. A simple moving-target indicator using the chirp Z-transform is used to determine the velocity while reducing clutter. A digital phase detector provides the range measurement. The application discussed is the detection of a single target that has jamming capabilities. The bistatic radar has inherent advantages against such a target due to the receiver site being passive and the basic geometry of the radar system.<<ETX>>","PeriodicalId":126733,"journal":{"name":"IEEE Region 5 Conference, 1988: 'Spanning the Peaks of Electrotechnology'","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129952033","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 author discusses the use of Logic Calc, a spreadsheet program that was developed for the design of digital systems. It provides a simple, interactive, highly visible, self-documenting method of designing digital systems at various levels of abstraction. Logic Calc allows the designer several capabilities not offered by financial spreadsheets, including an ability to specify the size in bits of each spreadsheet cell. This allows spreadsheet cells to closely represents registers, databuses, and other digital hardware of various sizes. Another specialized feature of Logic Calc is an ability to simulate registers and other key components of a digital system in a single spreadsheet cell.<>
{"title":"Logic Calc: a design tool for digital systems","authors":"G. Rosenberger","doi":"10.1109/REG5.1988.15916","DOIUrl":"https://doi.org/10.1109/REG5.1988.15916","url":null,"abstract":"The author discusses the use of Logic Calc, a spreadsheet program that was developed for the design of digital systems. It provides a simple, interactive, highly visible, self-documenting method of designing digital systems at various levels of abstraction. Logic Calc allows the designer several capabilities not offered by financial spreadsheets, including an ability to specify the size in bits of each spreadsheet cell. This allows spreadsheet cells to closely represents registers, databuses, and other digital hardware of various sizes. Another specialized feature of Logic Calc is an ability to simulate registers and other key components of a digital system in a single spreadsheet cell.<<ETX>>","PeriodicalId":126733,"journal":{"name":"IEEE Region 5 Conference, 1988: 'Spanning the Peaks of Electrotechnology'","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131544701","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}
A geometric computer model which places satellites in either low-Earth or geosynchronous orbits is described. The model is used in conjunction with table lookup and interpolation from performance characteristics of spread-spectrum multiple-access communications schemes to determine link and end-to-end performance of satellite communications networks in hostile environments. The program is implemented on a DEC Microvax workstation for interactive operation.<>
{"title":"Computer-aided evaluation of satellite networks in hostile environments","authors":"Robert E. Bowker, R. Ziemer, Randy L. Turcotte","doi":"10.1109/REG5.1988.15924","DOIUrl":"https://doi.org/10.1109/REG5.1988.15924","url":null,"abstract":"A geometric computer model which places satellites in either low-Earth or geosynchronous orbits is described. The model is used in conjunction with table lookup and interpolation from performance characteristics of spread-spectrum multiple-access communications schemes to determine link and end-to-end performance of satellite communications networks in hostile environments. The program is implemented on a DEC Microvax workstation for interactive operation.<<ETX>>","PeriodicalId":126733,"journal":{"name":"IEEE Region 5 Conference, 1988: 'Spanning the Peaks of Electrotechnology'","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114592285","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}
An outline is presented of the concepts and step-by-step approach used for the design of a single-board computer, the SBC-186, based on the Intel 80186 microprocessor. It was designed as a stand-alone system consisting of the processor and a terminal, and incorporates a variety of memory and input/output (I/O) options. A modular approach is used in presenting the SBC-186, breaking the overall system into smaller designs. The authors emphasize the need for timing, DC and AC analysis of designs to ensure their proper operation and reliability. Also presented is the system software development, and how it was separated into three main parts: initialization, memory tests, and the development of a minor routine.<>
{"title":"Single board computer design based on an Intel 80186 high integration microprocessor","authors":"G.M. Terhune, K. Hambacker, D. F. Dawson","doi":"10.1109/REG5.1988.15929","DOIUrl":"https://doi.org/10.1109/REG5.1988.15929","url":null,"abstract":"An outline is presented of the concepts and step-by-step approach used for the design of a single-board computer, the SBC-186, based on the Intel 80186 microprocessor. It was designed as a stand-alone system consisting of the processor and a terminal, and incorporates a variety of memory and input/output (I/O) options. A modular approach is used in presenting the SBC-186, breaking the overall system into smaller designs. The authors emphasize the need for timing, DC and AC analysis of designs to ensure their proper operation and reliability. Also presented is the system software development, and how it was separated into three main parts: initialization, memory tests, and the development of a minor routine.<<ETX>>","PeriodicalId":126733,"journal":{"name":"IEEE Region 5 Conference, 1988: 'Spanning the Peaks of Electrotechnology'","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116486683","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 mean time between failures (MTBF) of new products has been found to increase with time due to the decreasing number of process problems and design problems found as test time is accumulated. The author's purpose is to show one method of considering this when developing a probability ratio sequential test plan (PRST). The method results in a shorter test time to an accept decision for a product with a high MTBF and a longer test time to a reject decision for a product with a low MTBF.<>
{"title":"Reliability testing for non-constant MTBFs","authors":"J.R. Franck","doi":"10.1109/REG5.1988.15937","DOIUrl":"https://doi.org/10.1109/REG5.1988.15937","url":null,"abstract":"The mean time between failures (MTBF) of new products has been found to increase with time due to the decreasing number of process problems and design problems found as test time is accumulated. The author's purpose is to show one method of considering this when developing a probability ratio sequential test plan (PRST). The method results in a shorter test time to an accept decision for a product with a high MTBF and a longer test time to a reject decision for a product with a low MTBF.<<ETX>>","PeriodicalId":126733,"journal":{"name":"IEEE Region 5 Conference, 1988: 'Spanning the Peaks of Electrotechnology'","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123556307","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 current state of nuclear power in the US is explored with particular emphasis on the effects of the nuclear accidents at the Three Mile Island (TMI) nuclear plant in 1979, and most recently at Chernobyl in 1986. The status of the US nuclear power industry is examined, and the current turmoil is discussed. The future of nuclear power in the US is assessed with respect to perceived national security needs and loss of public confidence.<>
{"title":"US nuclear energy after Three Mile Island and Chernobyl","authors":"R. F. Phelps","doi":"10.1109/REG5.1988.15899","DOIUrl":"https://doi.org/10.1109/REG5.1988.15899","url":null,"abstract":"The current state of nuclear power in the US is explored with particular emphasis on the effects of the nuclear accidents at the Three Mile Island (TMI) nuclear plant in 1979, and most recently at Chernobyl in 1986. The status of the US nuclear power industry is examined, and the current turmoil is discussed. The future of nuclear power in the US is assessed with respect to perceived national security needs and loss of public confidence.<<ETX>>","PeriodicalId":126733,"journal":{"name":"IEEE Region 5 Conference, 1988: 'Spanning the Peaks of Electrotechnology'","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127023818","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}
A general unconstrained transform is developed. The energy in electromagnetic circuits is presented in one composite equation. The relationship between conservation and circuit elements is presented. It is shown that only a few very fundamental relationships are necessary to completely describe electromagnetic networks. These provide a composite approach to the various specialities of electrical engineering. The definition of electromagnetic energy combined with conservation and discrete-element relationships are adequate.<>
{"title":"A composite approach to electrical engineering","authors":"M. O. Durham","doi":"10.1109/REG5.1988.15918","DOIUrl":"https://doi.org/10.1109/REG5.1988.15918","url":null,"abstract":"A general unconstrained transform is developed. The energy in electromagnetic circuits is presented in one composite equation. The relationship between conservation and circuit elements is presented. It is shown that only a few very fundamental relationships are necessary to completely describe electromagnetic networks. These provide a composite approach to the various specialities of electrical engineering. The definition of electromagnetic energy combined with conservation and discrete-element relationships are adequate.<<ETX>>","PeriodicalId":126733,"journal":{"name":"IEEE Region 5 Conference, 1988: 'Spanning the Peaks of Electrotechnology'","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130097026","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 authors plan to implement an insolation data collection system in connection with a solar-energy research program of a local electric utility company. The system will be implemented in two independent parts. The hardware for the first part will consist of an IBM PC-compatible microcomputer equipped with a Metrabyte Dash-16 data acquisition system. The data acquisition hardware will be connected to five pyranometers. The five collection stations will be placed so as to simulate an actual solar power panel. The desired end-product of this data is the effect of cloud cover on solar power generation systems. The second part of the project begins by designing solar-energy data collection units, four of which will be located throughout Kansas. The data will be used to evaluate the various locations' potentials with respect to solar power production.<>
{"title":"Data from the Sun","authors":"T. Unruh, W. Jewell","doi":"10.1109/REG5.1988.15900","DOIUrl":"https://doi.org/10.1109/REG5.1988.15900","url":null,"abstract":"The authors plan to implement an insolation data collection system in connection with a solar-energy research program of a local electric utility company. The system will be implemented in two independent parts. The hardware for the first part will consist of an IBM PC-compatible microcomputer equipped with a Metrabyte Dash-16 data acquisition system. The data acquisition hardware will be connected to five pyranometers. The five collection stations will be placed so as to simulate an actual solar power panel. The desired end-product of this data is the effect of cloud cover on solar power generation systems. The second part of the project begins by designing solar-energy data collection units, four of which will be located throughout Kansas. The data will be used to evaluate the various locations' potentials with respect to solar power production.<<ETX>>","PeriodicalId":126733,"journal":{"name":"IEEE Region 5 Conference, 1988: 'Spanning the Peaks of Electrotechnology'","volume":"215 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134537836","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}
An optimum receiver structure for the detection of the symbol rate of a digitally modulated carrier is investigated for rectangular and Nyquist pulse shapes. The resulting receiver structure forms a maximum-likelihood symbol rate estimator. The performance of this optimum receiver is compared with that of a delay-and-multiply receiver, which is known to be sub-optimum. The signal-to-noise ratio associated with the rate-line spectrum at the receiver output is used as a measure of rate-line detectability.<>
{"title":"A performance comparison of optimum and sub-optimum receiver structures for rate-line detection of digitally modulated carriers","authors":"D. Reed, M. Wickert","doi":"10.1109/REG5.1988.15925","DOIUrl":"https://doi.org/10.1109/REG5.1988.15925","url":null,"abstract":"An optimum receiver structure for the detection of the symbol rate of a digitally modulated carrier is investigated for rectangular and Nyquist pulse shapes. The resulting receiver structure forms a maximum-likelihood symbol rate estimator. The performance of this optimum receiver is compared with that of a delay-and-multiply receiver, which is known to be sub-optimum. The signal-to-noise ratio associated with the rate-line spectrum at the receiver output is used as a measure of rate-line detectability.<<ETX>>","PeriodicalId":126733,"journal":{"name":"IEEE Region 5 Conference, 1988: 'Spanning the Peaks of Electrotechnology'","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129878373","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}
Two methods of combining DPCM (differential pulse-code modulation) and interpolation are proposed for compressing still-frame teleconferencing signals. The first method uses horizontal subsampling, DPCM, and interpolation to achieve a 4:1 compression. The other method is similar but uses vertical subsampling instead. Simulation results indicate that either method can easily achieve the required 2-b/pel data rate with negligible degradation in image quality. Conventional DPCM is shown to perform slightly better in quantitative terms when fixed-wordlength coding is used. However, the two DPCM/interpolation methods offer other advantages when used with a variable-wordlength coder.<>
{"title":"Still-frame image transmission using DPCM/interpolative coding","authors":"Brindala Mallappa, N. Cox","doi":"10.1109/REG5.1988.15907","DOIUrl":"https://doi.org/10.1109/REG5.1988.15907","url":null,"abstract":"Two methods of combining DPCM (differential pulse-code modulation) and interpolation are proposed for compressing still-frame teleconferencing signals. The first method uses horizontal subsampling, DPCM, and interpolation to achieve a 4:1 compression. The other method is similar but uses vertical subsampling instead. Simulation results indicate that either method can easily achieve the required 2-b/pel data rate with negligible degradation in image quality. Conventional DPCM is shown to perform slightly better in quantitative terms when fixed-wordlength coding is used. However, the two DPCM/interpolation methods offer other advantages when used with a variable-wordlength coder.<<ETX>>","PeriodicalId":126733,"journal":{"name":"IEEE Region 5 Conference, 1988: 'Spanning the Peaks of Electrotechnology'","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1988-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131487657","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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