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Algorithm Research & Explore
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1638-1641

Research on multipath delay estimation algorithm for Chirp signal

Feng Yali
Liu Cheng
Zhang Xiangbin
School of Communication & Information Engineering, Chongqing University of Posts & Telecommunications, Chongqing 400065, China

Abstract

In order to solve the problem of the fractional Fourier transform(FRFT) in estimating the multipath delay for Chirp signal, this paper proposed an improved FRFT multipath delay estimation algorithm based on the energy of each multipath component. The algorithm sequentially returned the estimated values of multipath components by iteration according to the energy magnitude of multipath components. In each iteration, there were a sub-iteration to accurately estimate the parameter and location of the current component, and then generated a time domain copy of the sounding signal, which was subtracted from the residual signal to reach separation of the multipath signal. This paper made some experiments which used channel model based on the characteristics of power delay distribution. The results show that the improved algorithm can estimate the multipath delay more accurately than the other three delay estimation approaches.

Foundation Support

国家科技重大专项资助项目(2017ZX030204003)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2018.11.0872
Publish at: Application Research of Computers Printed Article, Vol. 37, 2020 No. 6
Section: Algorithm Research & Explore
Pages: 1638-1641
Serial Number: 1001-3695(2020)06-006-1638-04

Publish History

[2020-06-05] Printed Article

Cite This Article

冯亚丽, 刘成, 张祥斌. Chirp信号多径时延估计算法研究 [J]. 计算机应用研究, 2020, 37 (6): 1638-1641. (Feng Yali, Liu Cheng, Zhang Xiangbin. Research on multipath delay estimation algorithm for Chirp signal [J]. Application Research of Computers, 2020, 37 (6): 1638-1641. )

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  • Application Research of Computers Monthly Journal
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Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

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