基于交错算法的FMICW技术在车载雷达中的应用

张远辉; 杨健; 朱俊江; 李孝禄; 何雨辰

doi:10.11959/j.issn.1000-0801.2018269

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基于交错算法的FMICW技术在车载雷达中的应用

研究与开发 | 更新时间：2024-06-05

- 基于交错算法的FMICW技术在车载雷达中的应用
- Application of FMICW technology based on stagger algorithm in automotive radar
- 电信科学 2018年34卷第10期页码：36-46
- 作者机构：
- 作者简介：
  
  [ "张远辉（1982-），男，博士，中国计量大学机电工程学院副教授，主要研究方向为信号处理、机器人智能控制、计算机视觉。" ]
  [ "杨健（1993-），男，中国计量大学机电工程学院硕士生，主要研究方向为雷达信号处理。" ]
  [ "朱俊江（1987-），男，博士，中国计量大学机电工程学院讲师，主要研究方向为信号处理。" ]
  [ "李孝禄（1968-），男，博士，中国计量大学机电工程学院副教授，主要研究方向为汽车电子、车辆工程。" ]
  [ "何雨辰（1988-），男，博士，中国计量大学机电工程学院讲师，主要研究方向为大数据分类诊断方法。" ]
- 基金信息：
  
  国家自然科学基金资助项目;The National Natural Science Foundation of China(61302191);浙江省自然科学基金资助项目;Natural Science Foundation of Zhejiang Province of China(LQ18F010006)
- DOI：10.11959/j.issn.1000-0801.2018269
  中图分类号： TN958
- 网络出版日期：2018-10，
  
  纸质出版日期：2018-10-20
- 稿件说明：
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张远辉, 杨健, 朱俊江, 等. 基于交错算法的FMICW技术在车载雷达中的应用[J]. 电信科学, 2018,34(10):36-46.

Yuanhui ZHANG, Jian YANG, Junjiang ZHU, et al. Application of FMICW technology based on stagger algorithm in automotive radar[J]. Telecommunications science, 2018, 34(10): 36-46.
张远辉, 杨健, 朱俊江, 等. 基于交错算法的FMICW技术在车载雷达中的应用[J]. 电信科学, 2018,34(10):36-46. DOI： 10.11959/j.issn.1000-0801.2018269.

Yuanhui ZHANG, Jian YANG, Junjiang ZHU, et al. Application of FMICW technology based on stagger algorithm in automotive radar[J]. Telecommunications science, 2018, 34(10): 36-46. DOI： 10.11959/j.issn.1000-0801.2018269.

摘要

调频中断连续波（FMICW）雷达收发转换开关频率满足一定约束条件时，不仅保留了调频连续波（FMCW）雷达峰值功率低、距离分辨率高、对其他系统干扰小等优点，而且解决了发射机能量泄露导致接收机过载的缺点。所提方案研究 FMICW 技术由于收发过程的不连续性，在车载雷达中采用单一开关频率的传统方法会出现多个杂散频谱尖峰的问题。使用带通滤波器消除杂散尖峰的精度取决于对目标距离的先验估计，使用伪随机中断序列的方法会使本底噪声的平均功率增大，动态检测范围缩小。所提方案使用了一种基于多个开关频率的交错算法，在多个频谱上每个频率位置做最小化可在频域中直接消除杂散尖峰。经实验分析，FMICW应用在车载中与等效FMCW雷达检测性能接近，且对多目标环境具有良好的适应性。

Abstract

The problem of spurious spectral peaks produced by the traditional method of using a single switching frequency in automotive FMICW radar was focused by the proposed scheme.The system accuracy depended on the previously estimated range if a bandpass filter was utilized to eliminate the spurious spectral peaks

and the noise floor could be too high to achieve the required dynamic detection range if the random interrupted sequence method was utilized.A stagger algorithm based on multiple switching frequencies was used

in which the spurious peaks from the frequency domain could be removed by minimizing each frequency position on multiple spectrums.Simulation results show that the proposed method is close to the equivalent FMCW radar detection performance

and is good in multiple targets scenario.

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references

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