离散WV分布在FSK信号数字解调中的应用

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Application of discrete WVD to teh digital demodulation for FSK signal

FENG Xiao-ping;ZHAO Huan-jun;ZHANG Lin

(Research Inst. of Electronic Countermeasures, Xidian Univ., Xi’an China， China)

Received:1900-01-01 Revised:1900-01-01 Online:2003-04-20 Published:2003-04-20

Abstract

Abstract: This paper presents a new digital demodulation method for the FSK signal, based on the Wigner-ville Transform. The FSK signal is discussed in the time-frequency plane, and the statistical methods are used to evaluate its frequency and code element width. A typical example about demodulation of 8FSK is given, and the effect of different windows is discussed. Finally the simulative results of this demodulation method under different signal-to-noise ratios(SNR) are presented and compared with the STFT demodulator.

Key words: FSK signa, WVD, digital demodulation, SNR

CLC Number:

TN975

FENG Xiao-ping;ZHAO Huan-jun;ZHANG Lin.

Application of discrete WVD to teh digital demodulation for FSK signal

[J].J4, 2003, 30(2): 201-204.

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Application of discrete WVD to teh digital demodulation for FSK signal

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