An Accurate Estimation Algorithm for Doppler Frequency Rate-of-Change Based on Wavelet Transform

YU Chun-lai; LV Shao-yu; WAN Fang; WAN Jian-wei

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An Accurate Estimation Algorithm for Doppler Frequency Rate-of-Change Based on Wavelet Transform

更新时间：2025-07-16

- An Accurate Estimation Algorithm for Doppler Frequency Rate-of-Change Based on Wavelet Transform
- Acta Electronica Sinica Vol. 35, Issue 9, Pages: 1656-1659(2007)
- 作者机构：
  
  1. 国防科学技术大学电子科学与工程学院,湖南,长沙,410073
  2. 92941部队,辽宁,葫芦岛,125000
  3. 空军雷达学院研究生管理大队,湖北,武汉,430019
  4. 国防科学技术大学电子科学与工程学院湖南长沙,410073
  5. 92941部队辽宁葫芦岛,125000
  6. 空军雷达学院研究生管理大队湖北武汉,430019
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN973
- Published：2007
- 稿件说明：
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YU Chun-lai, LV Shao-yu, WAN Fang, et al. An Accurate Estimation Algorithm for Doppler Frequency Rate-of-Change Based on Wavelet Transform[J]. Acta Electronica Sinica, 2007, 35(9): 1656-1659.
DOI：

YU Chun-lai, LV Shao-yu, WAN Fang, et al. An Accurate Estimation Algorithm for Doppler Frequency Rate-of-Change Based on Wavelet Transform[J]. Acta Electronica Sinica, 2007, 35(9): 1656-1659. DOI：

摘要

在单站无源定位与跟踪系统中

获取多普勒频率变化率信息对运动目标的状态估计和定位具有非常重要的意义.多普勒频率变化率非常微弱

很难精确测量.小波变换是一种时频局域化的分析方法

具有较低的信噪比门限.本文提出了基于小波变换的多普勒频率变化率估计方法

计算机仿真研究表明本文提出的方法具有较低的信噪比门限

并且可以快速精确地实现参数估计.

Abstract

In the passive locating and tracking system of single observer

an obtainment of Doppler Frequency Rate-of-Change is very important for the state estimation and location of a moving target.The Doppler Frequency Rate-of-Change is very difficult to estimate accurately because of its subtleness.Wavelet transform has the time-frequency localization characteristic and low SNR threshold.An algorithm based on wavelet transform is proposed to estimate the Doppler Frequency Rate-of-Change

the computer simulation study shows that this algorithm has low SNR threshold and obtain the parameter estimation fast and accurately.

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