Pub Date : 1984-05-21DOI: 10.1109/VTC.1984.1623257
P.A. Frankenstein
The FCC has opened a new area of mobile telephone service with the allocation of the 800 MHz band for cellular mobile phone service. A joint effort by General Electric and Northern Telecom has resulted in a unique cellular mobile phone system. This paper discusses the land station and mobile portion of the system developed by General Electric.
{"title":"Land station and mobile station equipment for a cellular system application","authors":"P.A. Frankenstein","doi":"10.1109/VTC.1984.1623257","DOIUrl":"https://doi.org/10.1109/VTC.1984.1623257","url":null,"abstract":"The FCC has opened a new area of mobile telephone service with the allocation of the 800 MHz band for cellular mobile phone service. A joint effort by General Electric and Northern Telecom has resulted in a unique cellular mobile phone system. This paper discusses the land station and mobile portion of the system developed by General Electric.","PeriodicalId":178210,"journal":{"name":"34th IEEE Vehicular Technology Conference","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1984-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128957181","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 : 1984-05-21DOI: 10.1109/VTC.1984.1623237
T. Babij, Q. Balzano, T. Manning
Described here is an automated system for measuring the distribution of the magnetic near-field close to an RF source. It utilizes a new miniature (10mm-diameter) broadband magnetic-field probe which is transparent to electromagnetic energy. The system provides accurate repeatability of probe placement, fast data acquisition, and several types of data presentation.
{"title":"Measurement of the magnetic field very close to an RF source","authors":"T. Babij, Q. Balzano, T. Manning","doi":"10.1109/VTC.1984.1623237","DOIUrl":"https://doi.org/10.1109/VTC.1984.1623237","url":null,"abstract":"Described here is an automated system for measuring the distribution of the magnetic near-field close to an RF source. It utilizes a new miniature (10mm-diameter) broadband magnetic-field probe which is transparent to electromagnetic energy. The system provides accurate repeatability of probe placement, fast data acquisition, and several types of data presentation.","PeriodicalId":178210,"journal":{"name":"34th IEEE Vehicular Technology Conference","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1984-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121354045","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 : 1984-05-21DOI: 10.1109/VTC.1984.1623277
A. S. Hauksdóttir, R. Fenton
A longitudinal controller was designed to meet the following requirements: a velocityinvariant response, physical realizability, a comfortable ride, a small, vehicle-position error, short ramp lengths for merging entries, and minimal effects from disturbance inputs. A reduced-order observer was used to derive the required state feedback signals, the controller was designed to obtain a velocity-invariant response, and was realized on a microcomputer. The vehicle longitudinal dynamics were simulated on an analog computer, and the performance of the controlled system was evaluated. It was concluded that all design requirements were met. The designed digital controller is an attractive candidate for implementation, and at the very least, indicates the type of longitudinal performance one can expect from a realistically designed controller over the speed range 0-30 m/s.
{"title":"A microprocessor-based vehicle longitudinal controller","authors":"A. S. Hauksdóttir, R. Fenton","doi":"10.1109/VTC.1984.1623277","DOIUrl":"https://doi.org/10.1109/VTC.1984.1623277","url":null,"abstract":"A longitudinal controller was designed to meet the following requirements: a velocityinvariant response, physical realizability, a comfortable ride, a small, vehicle-position error, short ramp lengths for merging entries, and minimal effects from disturbance inputs. A reduced-order observer was used to derive the required state feedback signals, the controller was designed to obtain a velocity-invariant response, and was realized on a microcomputer. The vehicle longitudinal dynamics were simulated on an analog computer, and the performance of the controlled system was evaluated. It was concluded that all design requirements were met. The designed digital controller is an attractive candidate for implementation, and at the very least, indicates the type of longitudinal performance one can expect from a realistically designed controller over the speed range 0-30 m/s.","PeriodicalId":178210,"journal":{"name":"34th IEEE Vehicular Technology Conference","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1984-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123122244","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 : 1984-05-21DOI: 10.1109/VTC.1984.1623270
R. Disilvestro
A new design for the reception of frequency-shift-keyed/phase-shift-keyed track signals uses solid state filters in a redundant fashion. This new design provides improved performance, increased reliability, reduced cost, and expanded flexibility without compromising safety. This design Incororates two new concepts: the "hunter filter" and "checked-redundancy."
{"title":"Redundant solid state filters for track signal reception in mass transit systems","authors":"R. Disilvestro","doi":"10.1109/VTC.1984.1623270","DOIUrl":"https://doi.org/10.1109/VTC.1984.1623270","url":null,"abstract":"A new design for the reception of frequency-shift-keyed/phase-shift-keyed track signals uses solid state filters in a redundant fashion. This new design provides improved performance, increased reliability, reduced cost, and expanded flexibility without compromising safety. This design Incororates two new concepts: the \"hunter filter\" and \"checked-redundancy.\"","PeriodicalId":178210,"journal":{"name":"34th IEEE Vehicular Technology Conference","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1984-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117232282","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 : 1984-05-21DOI: 10.1109/VTC.1984.1623242
G. Hess, L. Mohl, D. Green
This paper discusses a traffic loader/performance monitor developed for the Motorola trunked simulcast system. It has the capability of fully loading systems sized up to 20 channels at 11 sites with mixed dispatch and interconnect calls. It does this without the need for any actual repeater equipment or mobile radios, in contrast to a real system which could involve up to 220 repeaters and about 3000 mobiles. Each simulated call is checked in real time for proper sequencing and histograms of critical time periods are generated.
{"title":"Trunked simulcast system stimulator","authors":"G. Hess, L. Mohl, D. Green","doi":"10.1109/VTC.1984.1623242","DOIUrl":"https://doi.org/10.1109/VTC.1984.1623242","url":null,"abstract":"This paper discusses a traffic loader/performance monitor developed for the Motorola trunked simulcast system. It has the capability of fully loading systems sized up to 20 channels at 11 sites with mixed dispatch and interconnect calls. It does this without the need for any actual repeater equipment or mobile radios, in contrast to a real system which could involve up to 220 repeaters and about 3000 mobiles. Each simulated call is checked in real time for proper sequencing and histograms of critical time periods are generated.","PeriodicalId":178210,"journal":{"name":"34th IEEE Vehicular Technology Conference","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1984-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131707773","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 : 1984-05-21DOI: 10.1109/VTC.1984.1623265
C. Mokkapati, D. Stark
This paper presents harmonic data applicable to 6- and 12- phase rectifier systems and propulsion control choppers used in present-day rapid transit systems. It also outlines the method of predicting the effect of harmonic interference on the performance of audio-frequency signaling systems used on the rapid transit systems for train detection and cab signaling. Until recently, detailed data on the nature and magnitude of harmonics from the traction power rectifier systems and choppers have not been available. Recent tests conducted by the authors and others
{"title":"Traction power and chopper harmonics in a rapid transit system","authors":"C. Mokkapati, D. Stark","doi":"10.1109/VTC.1984.1623265","DOIUrl":"https://doi.org/10.1109/VTC.1984.1623265","url":null,"abstract":"This paper presents harmonic data applicable to 6- and 12- phase rectifier systems and propulsion control choppers used in present-day rapid transit systems. It also outlines the method of predicting the effect of harmonic interference on the performance of audio-frequency signaling systems used on the rapid transit systems for train detection and cab signaling. Until recently, detailed data on the nature and magnitude of harmonics from the traction power rectifier systems and choppers have not been available. Recent tests conducted by the authors and others","PeriodicalId":178210,"journal":{"name":"34th IEEE Vehicular Technology Conference","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1984-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130224738","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 : 1984-05-21DOI: 10.1109/VTC.1984.1623279
K. A. Karg
The application of the microprocessor in test equipment has affected the design of test systems for mass transit. Today, the test equipment is as sophisticated as the equipment that it tests. The increased speed that comes with the new technology has allowed testing to evolve from simple signal checking to system testing and monitoring of results. Computer links to printers and other display devices facilitate communications and accurate documentation of the results. These advances mean that it is now possible to perform sequential tests on Automated Train Control systems during manufacture, pre-service operation and in-service operation.
{"title":"Microprocessor-based test equipment for automated mass transit","authors":"K. A. Karg","doi":"10.1109/VTC.1984.1623279","DOIUrl":"https://doi.org/10.1109/VTC.1984.1623279","url":null,"abstract":"The application of the microprocessor in test equipment has affected the design of test systems for mass transit. Today, the test equipment is as sophisticated as the equipment that it tests. The increased speed that comes with the new technology has allowed testing to evolve from simple signal checking to system testing and monitoring of results. Computer links to printers and other display devices facilitate communications and accurate documentation of the results. These advances mean that it is now possible to perform sequential tests on Automated Train Control systems during manufacture, pre-service operation and in-service operation.","PeriodicalId":178210,"journal":{"name":"34th IEEE Vehicular Technology Conference","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1984-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116441991","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 : 1984-05-21DOI: 10.1109/VTC.1984.1623241
G. Hess
This paper develops a means of estimating the probability of call interference for telephone interconnect calls placed on mobile radio systems with reuse. Two classes of systems are treated: (1) those in which the channel is monitored for occupancy prior to placing a call and (2) those in which the channel is not monitored. An example of a class (1) system is the recently proposed personal radio communications system (FCC PR Docket No. 83- 26). Traditional cell system designs fit into class (2) as there reuse cell spacings are engineered so as to achieve some desired "static" interference probability. Our analysis accounts for the temporal variations of average signal powers with both desired and interference sources moving and is thus "dynamic". We take as the definition of call interference, the probability that during the first T seconds of successfully established calls the desired-to-interference power ratio falls below a reference value of x dB at least once.
{"title":"Analysis of the probability of interference during a telephone interconnect call","authors":"G. Hess","doi":"10.1109/VTC.1984.1623241","DOIUrl":"https://doi.org/10.1109/VTC.1984.1623241","url":null,"abstract":"This paper develops a means of estimating the probability of call interference for telephone interconnect calls placed on mobile radio systems with reuse. Two classes of systems are treated: (1) those in which the channel is monitored for occupancy prior to placing a call and (2) those in which the channel is not monitored. An example of a class (1) system is the recently proposed personal radio communications system (FCC PR Docket No. 83- 26). Traditional cell system designs fit into class (2) as there reuse cell spacings are engineered so as to achieve some desired \"static\" interference probability. Our analysis accounts for the temporal variations of average signal powers with both desired and interference sources moving and is thus \"dynamic\". We take as the definition of call interference, the probability that during the first T seconds of successfully established calls the desired-to-interference power ratio falls below a reference value of x dB at least once.","PeriodicalId":178210,"journal":{"name":"34th IEEE Vehicular Technology Conference","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1984-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115865787","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 : 1984-05-21DOI: 10.1109/VTC.1984.1623284
P. Burgess, C. F. Cole
Technological advances have made possible new, more efficient and less costly communications systems in rapid rail transit systems. New configurations of such recently proven technologies are being planned for the Los Angeles Metro Rail system. System requirements are described and system services, including automatic train protection, automatic train supervision, the cable transmission system, the supervisory control and data acquisition system, as well as the telephone, radio, and closed circuit television systems are outlined.
{"title":"Communications systems for control and supervision of the Los Angeles metro rail trains and facilities","authors":"P. Burgess, C. F. Cole","doi":"10.1109/VTC.1984.1623284","DOIUrl":"https://doi.org/10.1109/VTC.1984.1623284","url":null,"abstract":"Technological advances have made possible new, more efficient and less costly communications systems in rapid rail transit systems. New configurations of such recently proven technologies are being planned for the Los Angeles Metro Rail system. System requirements are described and system services, including automatic train protection, automatic train supervision, the cable transmission system, the supervisory control and data acquisition system, as well as the telephone, radio, and closed circuit television systems are outlined.","PeriodicalId":178210,"journal":{"name":"34th IEEE Vehicular Technology Conference","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1984-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124257036","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 : 1984-05-21DOI: 10.1109/VTC.1984.1623274
T. Tsumura, M. Hashimoto, S. Kamei, A. Takahashi
This paper presents a proposed new method of vehicle to vehicle communication system by use of LASER BEAM and CORNER CUBE PRISM. Principle of vehicle to and from vehicle communication system by the laser and the corner cube is composed of; the first transmitting means for the laser beam which is scanned a plane on the route of vehicle. the second reflecting means or apparatuses on the vehicle to reflect the above scanned laser beam to the same incident angle. the third modulating means to modulate the above reflected or incident laser beam on the vehicle. the forth receiving means to accept and detect the modulated signal on the other vehicle to find the signal from the vehicle. Proposed system may be applicable to many kind of ground vehicles, such as automated carrier cart in factory (2 dimensional movement) as well as aircraft, missile, terrain vehicle (3 dimensional vehicle). Our experimental laser communication system demonstrates good results for the application.
{"title":"Vehicle to vehicle communication system by use of laser/optical beam","authors":"T. Tsumura, M. Hashimoto, S. Kamei, A. Takahashi","doi":"10.1109/VTC.1984.1623274","DOIUrl":"https://doi.org/10.1109/VTC.1984.1623274","url":null,"abstract":"This paper presents a proposed new method of vehicle to vehicle communication system by use of LASER BEAM and CORNER CUBE PRISM. Principle of vehicle to and from vehicle communication system by the laser and the corner cube is composed of; the first transmitting means for the laser beam which is scanned a plane on the route of vehicle. the second reflecting means or apparatuses on the vehicle to reflect the above scanned laser beam to the same incident angle. the third modulating means to modulate the above reflected or incident laser beam on the vehicle. the forth receiving means to accept and detect the modulated signal on the other vehicle to find the signal from the vehicle. Proposed system may be applicable to many kind of ground vehicles, such as automated carrier cart in factory (2 dimensional movement) as well as aircraft, missile, terrain vehicle (3 dimensional vehicle). Our experimental laser communication system demonstrates good results for the application.","PeriodicalId":178210,"journal":{"name":"34th IEEE Vehicular Technology Conference","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1984-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126893261","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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