Institute of Space and Aeronautical Science, University of Tokyo
Institute of Space and Aeronautical Science, University of Tokyo
Institute of Space and Aeronautical Science, University of Tokyo
出版者
東京大学宇宙航空研究所
雑誌名
東京大学宇宙航空研究所報告
巻
15
号
3_A
ページ
381 - 401
発行年
1979-08
抄録（英）
This paper proposes "Dual-Speed Data Transmission System (DSDTS)" and discusses the bit error rate for a PSK/FSK Dual-Speed Data Transmission System (PSK/FSK DSDTS) as well as the signal detection schemes. The DSDTS is devised to enable a small scale earth station to acquire a limited portion of data in the deep space exploration. The PSK/FSK DSDTS is an example of the proposed DSDTS. In this system, energy of some bit-intervals of PSK channel which is assigned to high speed channel is utilized to one bit energy of FSK channel which is assigned to a low speed channel for a small earth station. In this paper, nearly optimum signal detection schemes basing upon the Maximum A Posteriori Probability (MAP) method are constructed for PSK/FSK DSDTS. The formulations of bit error probability for each channel according to these dectectors are also introduced.
<論文>深宇宙探索における複速度通信方式
SA0125762.pdf
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