A Spectral Peak Search Algorithm Based on Underdetermined Equation and Its Application in Continuous Millimeter Wave Radar System

CHEN Bing-bing; CAO Xin-yuan; CHEN Ming-sheng; QI Qi; KUANG Xiao-jing; WU Xian-liang; CHEN Hui

doi:10.3969/j.issn.0372-2112.2020.02.020

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A Spectral Peak Search Algorithm Based on Underdetermined Equation and Its Application in Continuous Millimeter Wave Radar System

更新时间：2025-07-16

- A Spectral Peak Search Algorithm Based on Underdetermined Equation and Its Application in Continuous Millimeter Wave Radar System
- Acta Electronica Sinica Vol. 48, Issue 2, Pages: 369-374(2020)
- 作者机构：
  
  1. 合肥师范学院电子信息与电气工程学院,安徽,合肥,230601
  2. 电子信息系统仿真设计安徽省重点实验室,安徽,合肥,230601
  3. 安徽大学,安徽,合肥,230601
  4. 国网合肥供电公司,安徽,合肥,230002
  5. 合肥师范学院电子信息与电气工程学院,安徽,合肥,230601
  6. 电子信息系统仿真设计安徽省重点实验室,安徽,合肥,230601
  7. 安徽大学,安徽,合肥,230601
  8. 国网合肥供电公司,安徽,合肥,230002
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0372-2112.2020.02.020
  CLC： TN957.51
- Published Online：25 February 2020，
  
  Published：2020
- 稿件说明：
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CHEN Bing-bing, CAO Xin-yuan, CHEN Ming-sheng, et al. A Spectral Peak Search Algorithm Based on Underdetermined Equation and Its Application in Continuous Millimeter Wave Radar System[J]. Acta Electronica Sinica, 2020, 48(2): 369-374.
DOI：

CHEN Bing-bing, CAO Xin-yuan, CHEN Ming-sheng, et al. A Spectral Peak Search Algorithm Based on Underdetermined Equation and Its Application in Continuous Millimeter Wave Radar System[J]. Acta Electronica Sinica, 2020, 48(2): 369-374. DOI： 10.3969/j.issn.0372-2112.2020.02.020.

摘要

现有谱峰搜索算法在应用于连续毫米波雷达后端中频信号处理时，或计算量较大，或精度不高.本文针对该问题，提出一种可有效提取信号峰值频率信息的快速算法，进而实现连续毫米波雷达的快速准确测速测距.该算法借助压缩感知原理，通过构建欠定方程，并计算少量内积，实现高效捕捉信号频率值.数值结果表明，此算法具有运算量小、计算精度高等特点，可为当今智能交通领域中的高精度测速测距提供一种快速解决方案.

Abstract

Aiming at the problems existing in the application of existing peak search algorithm to back-end IF (Intermediate Frequency) signal processing of continuous millimeter wave radar

such as heavy computation

low precision

a fast algorithm to extract the peak of signal frequency information is proposed

by which high-efficiency and high-precision measurements of the speed and distance for continuous millimeter wave radar is realized. By means of the principle of compressed sensing

an underdetermined equation is constructed in the algorithm

and with a few inner product

the frequency corresponding to the actual spectral peak of the intermediate frequency signal is captured at a low computational complexity level. Numerical results show that the algorithm can obtain an accurate calculation result with small calculation amount

thus providing a fast solution for high-precision speed measurement and ranging in the field of intelligent transportation.

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