Presentation 1995/10/20
A Group Demodulator with Multi-Symbol Chirp Fourier Transform : An Application for Mobile Satellite Communication Systems
Tomoaki KUMAGAI, Kiyoshi KOBAYASHI,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) This paper proposes a group demodulator having a dual-parallel structure that employs the multi-symbol chirp Fourier transform and also evaluates the power consumption. Proposed group demodulator is suitable for hardware implementation and can demodulate band-limited and bit asynchronous signals with reasonably small degradation. Computer simulation results show that the bit error rate (BER) degradation of the proposed group demodulator employing 6-symbol chirp Fourier transformation is less than 0.5 dB at BER=10^<-3> even when root Nyquist (α=0.6) filtered bit asynchronous FDMA signals are received. The power consumption is lower than that of conventional demodulators when many carriers are handled.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Group Demodulator / Chirp Transform / FDM-TDM Conversion
Paper # SAT95-67,CS95-123
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Committee SAT
Conference Date 1995/10/20(1days)
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Registration To Satellite Telecommunications (SAT)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Group Demodulator with Multi-Symbol Chirp Fourier Transform : An Application for Mobile Satellite Communication Systems
Sub Title (in English)
Keyword(1) Group Demodulator
Keyword(2) Chirp Transform
Keyword(3) FDM-TDM Conversion
1st Author's Name Tomoaki KUMAGAI
1st Author's Affiliation NTT Wireless Systems Laboratories()
2nd Author's Name Kiyoshi KOBAYASHI
2nd Author's Affiliation NTT Wireless Systems Laboratories
Date 1995/10/20
Paper # SAT95-67,CS95-123
Volume (vol) vol.95
Number (no) 329
Page pp.pp.-
#Pages 6
Date of Issue