• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

1987 Fiscal Year Final Research Report Summary

A Study on Baseband Signal Processings in On-Board Processing Satellite Systems

Research Project

Project/Area Number 61550237
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 電子通信系統工学
Research InstitutionUniversity of Electro-Communications

Principal Investigator

TANAKA Masatomo  University of Electro-Communications, Associate Prof., 電気通信学部, 助教授 (20092611)

Co-Investigator(Kenkyū-buntansha) OKA Ikuo  University of Electro-Communications, Assistant Prof., 電気通信学部, 講師 (80160646)
ONOZATO Yoshikuni  University of Electro-Communications, Associate Prof., 電気通信学部, 助教授 (10143710)
MOCHIZUKI Hitoshi  University of Electro-Communcations, Prof., 電気通信学部, 教授 (60017275)
ENDO Ichiro  Musashi Institute of Technology, Prof., 工学部, 教授 (30017347)
Project Period (FY) 1986 – 1987
KeywordsOn-Board Processing Satellites / MSE / Soft Decision Viterbi Decoding Interference / OOK / PPM / オン・オフキーイング / パルス位置変調 / セパレートコーディング
Research Abstract

This work was carried out in order to develop baseband signal processing methods and new functions in on-board processing satellite systems. The summary of the obtained results are shown as follows.
1. Maximum likelihood decoding with interference canceling The signal processing of MSE and Viterbi decoding was introduced on board the satellite. The error rate was dervied to demonstrate the performance improvements of the processing. We noted that the improvements became large as the interference level.
2. Inter-Satellite optical communications
(1) In a inter-satellite optical communications, the dominant factor of performance degradation comes from the background optical noise from the sun. It is inevitable to use the coding technique to combat the factor. We derived the error rate of OOK systems using convolutional coding / soft decision Viterbi decoding, and showed the significant coding gain.
(2) For the purpose of suppressing the timing jitter effects due to the satellite motions, we used the optical PPM and separate coding. Three different receiver structures were proposed. Form the analytical results, we noted that, the receiver of soft decision - sum was best of three and suppressed the timing jitter effects.
(3) The combined PPM and convolutional coding scheme was introduced to overcome the effects of pulse stretching due to the earth-satellite optical communications. The numerical results of the error rate showed that, the scheme was very effective for the pulse stretching.

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] 桜井章雄: 電子通信学会論文誌. J69-B. 1020-1023 (1986)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] M.Tanaka: Journal of Engineering Education in Southeast. 16. 27-35 (1986)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Ishida: IEEE Transaction on Communications. COM-34. 443-450 (1986)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 岡育生: 電子情報通信学会論文誌. J70-B. 443-450 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Noda: Proceedings of International Symposium on Electromagnetic Compatibility. 399-403 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Iwasaki: Proceedings of IEEE Globecom87. 2. 985-989 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] SAKURAI, Akio: "Effects of Soft Decision Viterbi Decoding on Interferences" Transaction IECE of Japan. J69-B. 1020-1023 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] TANAKA, Masatomo: "A Study of a Cross Cultural Engineering Education Process Supported by Audio-Visual Media" Journal of Engineering Education in Southeast. 16. 27-35 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] ISHIDA,Kazuhito: "Cochannel Interference Cancelling Effects of MSE Processing and Viterbi Decoding in On-Board Processing Satellites" IEEE Transaction on Communications. COM-34. 443-450 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] OKA, Ikuo: "Error Performance of Soft Decision Decoding of Coded PPM Employing Stretched Optical Pulses" Transaction IEICE of Japan. J70-B. 443-450 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] NODA, Kozi: "Interference Canceling Techniques in On-Board Processing Satellites" Proceedings of International Symposium on Electromagnetic Compatibility. 399-403 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] IWASAKI, Satoshi: "Performance Analysis of Coded Optical PPM in the Presence of Timing Jitter" Proceedings of IEEE Globecom 87. 2. 985-989 (1987)

    • Description
      「研究成果報告書概要(欧文)」より

URL: 

Published: 1989-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi