An Effective Method for Multi-target Range and Velocity Measurement in FMCW Radar

XING Zi-ran; ZHU Dong-chen; JIN Xing

doi:10.3969/j.issn.0372-2112.2016.09.019

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An Effective Method for Multi-target Range and Velocity Measurement in FMCW Radar

更新时间：2025-07-16

- An Effective Method for Multi-target Range and Velocity Measurement in FMCW Radar
- Acta Electronica Sinica Vol. 44, Issue 9, Pages: 2148-2157(2016)
- 作者机构：
  
  1. 上海科技大学信息科学与技术学院,上海,200120
  2. 中科院上海微系统与信息技术研究所,上海,200050
  3. 上海科技大学信息科学与技术学院,上海,200120
  4. 中科院上海微系统与信息技术研究所,上海,200050
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0372-2112.2016.09.019
  CLC： TN957.51
- Published Online：25 September 2016，
  
  Published：2016
- 稿件说明：
移动端阅览
XING Zi-ran, ZHU Dong-chen, JIN Xing. An Effective Method for Multi-target Range and Velocity Measurement in FMCW Radar[J]. Acta Electronica Sinica, 2016, 44(9): 2148-2157.
DOI：

XING Zi-ran, ZHU Dong-chen, JIN Xing. An Effective Method for Multi-target Range and Velocity Measurement in FMCW Radar[J]. Acta Electronica Sinica, 2016, 44(9): 2148-2157. DOI： 10.3969/j.issn.0372-2112.2016.09.019.

摘要

为实现FMCW（Frequency Modulated Continuous Wave）雷达在复杂多目标场合的无模糊测量，本文提出了一种梯形波调制方式，并首次推导了其在最坏情况下的虚假匹配结果数.在此基础上，本文创新地设计了快速中频容差匹配算法（TFBM，Tolerance-Fast Beat frequency Matching）和虚假目标消除算法（FGTC，Fast Ghost Targets Canceling）及其对应的容差匹配条件.其中TFBM算法可以根据一个梯形周期的测量结果，容差、快速地找出所有可能的匹配；FGTC算法可以消除TFBM算法结果中的虚假目标.严格地理论推导和仿真结果表明，在梯形波调制下的FMCW雷达配合使用TFBM和FGTC算法不仅可以无模糊测量多目标的速度、距离信息，而且可以显著地降低计算复杂度.

Abstract

In order to realize unambiguous multi-target range and velocity measurement in FMCW (Frequency Modulation Continuous Wave) radar

a trapezoid waveform modulation is proposed and its worst-case matching numbers is derived.Then two processing algorithm

TFBM and FGTC

and their matching condition have been innovatively designed.TFBM (Tolerance-Fast Beat frequency Matching) algorithm can quickly find all possible results for each period.FGTC (Fast Ghost Targets Canceling) algorithm can quickly eliminate the ghost targets which are caused by TFBM algorithm.Strictly theoretical derivation and simulation results show that the joint use of TFBM and FTGC algorithm on trapezoid waveform radar can not only measure multi-target range and velocity without ambiguity

but also reduce the computational complexity significantly.

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