A New Estimation Method of Instantaneous Frequency Rate for Multicomponent Polynomial Phase Signal

Zhang  Wen-Wen; Si Xi-Cai

doi:10.3724/SP.J.1146.2007.01855

Volume 30 Issue 12

Jan. 2011

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Zhang Wen-Wen, Si Xi-Cai. A New Estimation Method of Instantaneous Frequency Rate for Multicomponent Polynomial Phase Signal[J]. Journal of Electronics & Information Technology, 2008, 30(12): 2881-2885. doi: 10.3724/SP.J.1146.2007.01855

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Zhang Wen-Wen, Si Xi-Cai. A New Estimation Method of Instantaneous Frequency Rate for Multicomponent Polynomial Phase Signal[J]. Journal of Electronics & Information Technology, 2008, 30(12): 2881-2885. doi: 10.3724/SP.J.1146.2007.01855

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A New Estimation Method of Instantaneous Frequency Rate for Multicomponent Polynomial Phase Signal

doi: 10.3724/SP.J.1146.2007.01855

Received Date: 2007-12-03
Rev Recd Date: 2008-06-09
Publish Date: 2008-12-19

Abstract

Abstract

This paper discusses some redundancy steps of FRFT in signal detection based on the decomposition of FRFT, and puts forward a Reduced FRFT (RFRFT) algorithm. Then it discusses several important characters of RFRFT in detail. Combined with the phase difference method, it proposes the product RFRFT arithmetic to realize the Instantaneous Frequency Rate (IFR) estimation of mc-PPS. And it enhances the parameter resolution rate of RFRFT by angle transform. This method is easy to calculate and implement. Simulation results validate the method is able to suppress the noise and cross-terms, and can apply to low SNR environment.
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References(1)

References

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