Higher-Order Wavelant Based Approach for Joint Time Delay and Doppler Stretch Estimation

ZHANG Wei-qiang; TAO Ran

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Higher-Order Wavelant Based Approach for Joint Time Delay and Doppler Stretch Estimation

更新时间：2025-07-16

- Higher-Order Wavelant Based Approach for Joint Time Delay and Doppler Stretch Estimation
- Acta Electronica Sinica Vol. 33, Issue 3, Pages: 549-552(2005)
- 作者机构：
  
  北京理工大学电子工程系,北京,100081
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN911.23
- Published：2005
- 稿件说明：
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ZHANG Wei-qiang, TAO Ran. Higher-Order Wavelant Based Approach for Joint Time Delay and Doppler Stretch Estimation[J]. Acta Electronica Sinica, 2005, 33(3): 549-552.
DOI：

ZHANG Wei-qiang, TAO Ran. Higher-Order Wavelant Based Approach for Joint Time Delay and Doppler Stretch Estimation[J]. Acta Electronica Sinica, 2005, 33(3): 549-552. DOI：

摘要

基于小波的宽带互模糊函数可用来对宽带信号的时间延迟和多普勒伸缩进行联合估计

但它不能抑制相关高斯噪声.本文结合小波和高阶累积量

给出一种四阶小波累量的定义

并在此基础上提出一种基于高阶小波累量的宽带互模糊函数算法

该算法能克服传统算法的不足

可用于相关性未知的高斯噪声环境.仿真结果表明了该方法的有效性.

Abstract

The wavelet based wideband cross ambiguity function can be used for joint time delay and Doppler stretch estimation.But it cannot suppress the effect due to correlated Gaussian noises.A definition of fourth-order wavelant is given by combining the wavelet and the higher-order cumulant.And a higher-order wavelant based wideband cross ambiguity function algorithm is presented based on the definition.This method can overcome the fault of the traditional algorithm and can be used in unknown correlated Gaussian noise environment.The simulation results are presented to demonstrate the effectiveness of this novel approach.

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A Robust Method for Joint Time Delay and Doppler Estimation Based on Multi-Cycle Frequencies

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Related Institution

Faculty of Electronic Information and Electrical Engineering, Dalian University of Technology

College of Electronic Information Engineering,Inner Mongolia University,Huhhot

Faculty of Electronic Information and Electrical EngineeringDalian University of TechnologyDalianLiaoning 116024China

College of Electronic Information EngineeringInner Mongolia UniversityHuhhotInner Mongolia 010021China

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