NLFM Signal Detection and Parameter Estimation Based on ERWT

DU Dong-ping; TANG Bin; SUN Ming-hong

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NLFM Signal Detection and Parameter Estimation Based on ERWT

更新时间：2025-07-16

- NLFM Signal Detection and Parameter Estimation Based on ERWT
- Acta Electronica Sinica Vol. 35, Issue 12, Pages: 2367-2370(2007)
- 作者机构：
  
  电子科技大学电子工程学院,四川,成都,610054
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN957.51TN957.54
- Published：2007
- 稿件说明：
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DU Dong-ping, TANG Bin, SUN Ming-hong. NLFM Signal Detection and Parameter Estimation Based on ERWT[J]. Acta Electronica Sinica, 2007, 35(12): 2367-2370.
DOI：

DU Dong-ping, TANG Bin, SUN Ming-hong. NLFM Signal Detection and Parameter Estimation Based on ERWT[J]. Acta Electronica Sinica, 2007, 35(12): 2367-2370. DOI：

摘要

提出了扩展Randon-Wigner变换(ERWT)算法原理

并结合非线性调频(NLFM)雷达信号时频特征

将回波信号的时延及多普勒频移对应到ERWT参量空间

基于参量空间的分布特征实现NLFM检测及参数估计.该方法对常规时频方法存在的交叉项不敏感

时延估计精度较高.计算机仿真试验验证了该方法的有效性.

Abstract

An algorithm of extended Radon-Wigner transformation (ERWT) is proposed.Mapping the delay and the Doppler frequency of radar echo to a parameter space of ERWT

the echo signal

with waveform of non-linear frequency modulated (NLFM)

can be detected based on the parameter space and the parameter of the echo can be estimated simultaneously.The proposed method is insensitive to the interference terms and has high precision of delay estimation.Validity of the method is verified by simulation results.

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