Detection and parameter estimation of linear frequency modulation continuous wave signal

被引：0

作者：

Zhu, Wen-Tao ^{[1
]}

Su, Tao ^{[1
]}

Yang, Tao ^{[1
]}

Zheng, Ji-Bin ^{[1
]}

Zhang, Long ^{[1
]}

机构：

[1] National Laboratory of Radar Signal Processing, Xidian University

来源：

Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology | 2014年 / 36卷 / 03期

关键词：

Cyclostationary; Inter-frame correlation; Linear Frequency Modulated Continuous Wave (LFMCW) signal; Normalized window-variant coherent average; Parameter estimation; Signal detection;

D O I：

10.3724/SP.J.1146.2013.00676

中图分类号：

学科分类号：

摘要：

To deal with the issue that the long time accumulation method is hard to be applied to the detection and parameter estimation of Linear Frequency Modulated Continuous Wave (LFMCW) signal, a novel algorithm combining the joint inter-frame correlation method and cyclostationary method is proposed to detect LFMCW signal and estimate its parameters. Firstly, consistency of noise variance is completed by the normalized window-variant coherent average method. Then, on this basis, the period is exactly estimated with inter-frame correlation method. Finally, cyclostationary method is utilized to estimate the phase parameters of LFMCW signal. The proposed algorithm realizes long time accumulation with low computational complexity. For low Signalto-Noise Ratio (SNR), this method still achieves good estimation performance. Simulation results verify the effectiveness of the proposed method.

引用

页码：552 / 558

页数：6

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