Multicomponent Signal Detection and Parameter Estimation Algorithm of Synchronization Nyquist Folding Receiver

Rui Li; Dian Ren Chen

doi:10.4028/www.scientific.net/AMM.568-570.218

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 568-570Multicomponent Signal Detection and Parameter...

Multicomponent Signal Detection and Parameter Estimation Algorithm of Synchronization Nyquist Folding Receiver

Abstract:

Nyquist Folding Receiver is a novel reconnaissance receiver structure which is able to use single ADC to sample Ultra-wideband signals. And the Synchronous Nyquist Folding Receiver (SNYFR) is an improved structure of NYFR. When input is multicomponent single-frequency signal, with the consideration of the characteristics of the output we propose an algorithm of Nyquist Zone(NZ) judgment and parameters estimation based on scaling search in Fractional Fourier Transform (FRFT) domain to avoid detection error occurring when the input signal components locate in the NZ fuzzy area. Computer simulation show that when SNR beyond, the Probability of Correct Decision(PCD) of signal detection can be achieved 100% and the mean square error of parameters estimation can be approached Cramer-Rao Bound(CRB) simultaneously.

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Periodical:

Applied Mechanics and Materials (Volumes 568-570)

Pages:

218-222

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.568-570.218

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Online since:

June 2014

Authors:

Rui Li*, Dian Ren Chen

Keywords:

Fractional Fourier Transform (FrFT), Nyquist Folding Receiver, Ultra Wideband Receiver

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