Presentation 2004/6/18
Demodulation of Low Bit Rate PSK Signals with Phase Noise Using DSP Technologies
Toshiyuki Sugawara, Shunichiro Egarni,
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Abstract(in English) In the past, demodulation of low bit rate PSK signals received from the communications satellites were difficult due to existence of the phase noise. This paper proposes the carrier recovery method of a low bit rate PSK signal with phase noise using DSP technologies. Communication with omni-directional terminals are aimed. The received signal is truncated with overlap. Each truncated time samples are squared and transformed to frequency samples by FFT. Then the peak and the second peak components are used to calculate carrier frequency and phase. If truncation interval were short compared to variation of frequency due to phase noise, it is possible to eliminate effect of the phase noise. By the simulation, it was shown that deterioration of BER was about 1dB compared with the theoretically value.
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Keyword(in English) satellite communication / phase noise / FFT / PSK / DSP
Paper # WBS2004-2,SAT2004-26
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Committee WBS
Conference Date 2004/6/18(1days)
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Registration To Wideband System(WBS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Demodulation of Low Bit Rate PSK Signals with Phase Noise Using DSP Technologies
Sub Title (in English)
Keyword(1) satellite communication
Keyword(2) phase noise
Keyword(3) FFT
Keyword(4) PSK
Keyword(5) DSP
1st Author's Name Toshiyuki Sugawara
1st Author's Affiliation Graduate School of Science and Technology, Shizuoka University()
2nd Author's Name Shunichiro Egarni
2nd Author's Affiliation Graduate School of Science and Technology, Shizuoka University
Date 2004/6/18
Paper # WBS2004-2,SAT2004-26
Volume (vol) vol.104
Number (no) 145
Page pp.pp.-
#Pages 5
Date of Issue