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- W2390587730 abstract "A noncoherent demodulation method for chirp-rate modulation is proposed based on the fractional Fourier transform,and the peak output of the demodulator is derived.Thereafter,this method is compared with coherent demodulation with matched filter from two aspects of Doppler shift and bit synchronization.And the analytical expressions of influence caused by the two factors are obtained,from which we can see that chirp-rate modulation has strong robustness on Doppler shift but sensitivity of bit synchronization.Finally,the simulations are made to prove the above-mentioned theories,as well as to analyze Bit Error Rate(BER).The performance of this proposed method is worse than coherent demodulation with matched filter for the former's noncoherent mode,but the difference in BER is 3 dB." @default.
- W2390587730 created "2016-06-24" @default.
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- W2390587730 date "2008-01-01" @default.
- W2390587730 modified "2023-09-28" @default.
- W2390587730 title "Study on Chirp-Rate Modulation and Demodulation Based on Fractional Fourier Transform" @default.
- W2390587730 hasPublicationYear "2008" @default.
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