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小波阈值去噪在FMCW雷达信号处理中的应用

陈文会 刘芹 刘小民 李喆

计算机工程与应用Issue(8):195-199,5.
计算机工程与应用Issue(8):195-199,5.DOI:10.3778/j.issn.1002-8331.1307-0083

小波阈值去噪在FMCW雷达信号处理中的应用

Application of wavelet threshold denoising method in signal process- ing of FMCW radar

陈文会 1刘芹 1刘小民 2李喆1

作者信息

  • 1. 西北工业大学 电子信息学院,西安 710129
  • 2. 陕西脉航交通测控有限公司,西安 710061
  • 折叠

摘要

Abstract

Facing the problem of the existence of noise in Frequency-Modulated Continuous Wave(FMCW)radar echo signal, wavelet threshold denoising method is used for signal denoising. Principle of each parameter of the wavelet thresh-old denoising method is discussed in detail, and a new threshold function superior to the typical functions, such as soft threshold function, hard threshold function, the improved compromise between soft and hard threshold method and semi-soft threshold function, is constructed. The typical functions and the new threshold function are used to process the actual radar echo signals and the results show that denoising performance of the new threshold function is better than that of the typical functions.

关键词

小波变换/阈值函数/调频连续波(FMCW)雷达

Key words

wavelet transform/threshold function/Frequency-Modulated Continuous Wave(FMCW)radar

分类

信息技术与安全科学

引用本文复制引用

陈文会,刘芹,刘小民,李喆..小波阈值去噪在FMCW雷达信号处理中的应用[J].计算机工程与应用,2015,(8):195-199,5.

计算机工程与应用

OA北大核心CSCDCSTPCD

1002-8331

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