面向FMCW毫米波雷达的Macleod-CZT高精度距离估计算法

卢云峰; 张远辉; 陈邵靖; 郑超群; 黄志恒

doi:10.11959/j.issn.1000-0801.DXKX250655

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面向FMCW毫米波雷达的Macleod-CZT高精度距离估计算法

研究与开发 | 更新时间：2026-07-21

- 面向FMCW毫米波雷达的Macleod-CZT高精度距离估计算法
- Macleod-CZT high-precision range estimation algorithm for FMCW millimeter-wave radar
- 电信科学 2026年42卷第6期页码：145-157
- 作者机构：
  
  1.中国计量大学机电工程学院，浙江杭州 310018
  2.杭州岸达科技有限公司，浙江杭州 310018
- 作者简介：
  
  卢云峰（1995- ），男，中国计量大学机电工程学院硕士生，主要研究方向为毫米波雷达信号处理。
  张远辉（1982- ），男，博士，中国计量大学机电工程学院副教授，主要研究方向为毫米波雷达算法、图像处理技术。
  陈邵靖（2003− ），男，中国计量大学机电工程学院硕士生，主要研究方向为毫米波雷达信号处理。
  郑超群（2001− ），男，中国计量大学机电工程学院硕士生，主要研究方向为毫米波雷达信号处理。
  黄志恒（1995− ），男，现就职于杭州岸达科技有限公司，主要从事毫米波雷达信号处理方面工作。
- 基金信息：
  
  浙江省自然科学基金资助项目(LY19F010007)
- DOI：10.11959/j.issn.1000-0801.DXKX250655
  中图分类号： TP393
- 收稿：2025-11-07，
  
  修回：2025-12-30，
  
  录用：2026-02-10，
  
  网络首发：2026-07-21，
  
  纸质出版：2026-06-20
- 稿件说明：
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卢云峰,张远辉,陈邵靖等.面向FMCW毫米波雷达的Macleod-CZT高精度距离估计算法[J].电信科学,2026,42(06):145-157.

Lu Yunfeng,Zhang Yuanhui,Chen Shaojing,et al.Macleod-CZT high-precision range estimation algorithm for FMCW millimeter-wave radar[J].Telecommunications Science,2026,42(06):145-157.
卢云峰,张远辉,陈邵靖等.面向FMCW毫米波雷达的Macleod-CZT高精度距离估计算法[J].电信科学,2026,42(06):145-157. DOI： 10.11959/j.issn.1000-0801.DXKX250655.

Lu Yunfeng,Zhang Yuanhui,Chen Shaojing,et al.Macleod-CZT high-precision range estimation algorithm for FMCW millimeter-wave radar[J].Telecommunications Science,2026,42(06):145-157. DOI： 10.11959/j.issn.1000-0801.DXKX250655.

摘要

在毫米波雷达系统中，近距离高精度测距是一项关键技术。然而，现有高精度测距算法计算复杂度较高，难以在资源受限的嵌入式平台上有效部署。为此，提出一种融合Macleod插值与Chirp-Z变换（Chirp-Z transform，CZT）的Macleod-CZT（MCZT）距离估计算法。该算法采用“粗估-细化-精插”三级级联结构，通过融合Macleod的插值修正与CZT的频域细化能力，有效抑制离散采样引起的栅栏效应。在ADT6101P雷达系统上的实测结果表明：在低变换点数（

=32）配置下，MCZT算法在低信噪比（signal-to-noise ratio，SNR）与非整数频点等复杂条件下表现出更优的测距精度。在未引入明显额外计算负荷的前提下，MCZT算法的实测误差可稳定控制在20 mm以内，为资源受限的毫米波雷达系统提供了一种高效、实用的测距方案。

Abstract

High-precision close-range measurement is identified as a critical technology in millimeter-wave radar systems. However

existing high-precision ranging algorithms are hampered by high computational complexity

which made them difficult to deploy effectively on resource-constrained embedded platforms. To address this

a Macleod-CZT(MCZT) range estimation algorithm integrating Macleod interpolation and the Chirp-Z transform (CZT) was proposed. A three-stage cascaded structure consisting of "coarse estimation–refinement–fine interpolation" was adopted by the algorithm. By combining the interpolation correction of the Macleod method with the frequency-domain refinement capability of the CZT

the picket fence effect caused by discrete sampling was effectively suppressed. It was demonstrated by experimental results on the ADT6101P radar system that under a low transform-point configuration (

=32)

superior ranging accuracy was exhibited by the MCZT algor

ithm under complex conditions such as low signal-to-noise ratios (SNR) and non-integer frequency bins. Without introducing significant additional computational load

the measured error was found to be stably controlled within 20 mm. This scheme provides a high-efficiency and practical ranging solution for resource-constrained millimeter-wave radar systems.

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