Frequency-Quadrupled Radar Composite Signal Generation and Multi-Dimensional Target Detection Enabled by Microwave Photonics

LIANG Ding-ding; CHEN Yang

doi:10.12263/DZXB.20211091

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Frequency-Quadrupled Radar Composite Signal Generation and Multi-Dimensional Target Detection Enabled by Microwave Photonics

TECHNOLOGIES ON MICROWAVE PHOTONICS | 更新时间：2025-12-08

- Frequency-Quadrupled Radar Composite Signal Generation and Multi-Dimensional Target Detection Enabled by Microwave Photonics
- ACTA ELECTRONICA SINICA Vol. 50, Issue 4, Pages: 796-803(2022)
- 作者机构：
  
  华东师范大学通信与电子工程学院上海市多维度信息处理重点实验室，上海 200241
- 作者简介：
- 基金信息：
- DOI：10.12263/DZXB.20211091
  CLC： TN95;TN29
- Received：14 August 2021，
  
  Revised：2021-10-18，
  
  Published：25 April 2022
- 稿件说明：
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梁丁丁,陈阳.微波光子四倍频复合雷达信号生成及目标多维度探测[J].电子学报,2022,50(04):796-803.

LIANG Ding-ding,CHEN Yang.Frequency-Quadrupled Radar Composite Signal Generation and Multi-Dimensional Target Detection Enabled by Microwave Photonics[J].ACTA ELECTRONICA SINICA,2022,50(04):796-803.
梁丁丁,陈阳.微波光子四倍频复合雷达信号生成及目标多维度探测[J].电子学报,2022,50(04):796-803. DOI： 10.12263/DZXB.20211091.

LIANG Ding-ding,CHEN Yang.Frequency-Quadrupled Radar Composite Signal Generation and Multi-Dimensional Target Detection Enabled by Microwave Photonics[J].ACTA ELECTRONICA SINICA,2022,50(04):796-803. DOI： 10.12263/DZXB.20211091.

摘要

在雷达系统中，为了实现对目标的高精度、多维度测量，产生雷达信号是一个基本而又重要的环节. 本文提出了一种微波光子四倍频复合雷达信号产生方法，该复合雷达信号包括单啁啾线性调频信号和单音微波信号. 利用单音微波信号和单啁啾线性调频信号实现目标径向速度的测量，使用单啁啾线性调频信号实现目标距离测量和高分辨率微波成像. 在发射端，使用微波光子四倍频技术生成了瞬时带宽为2 GHz的正啁啾线性调频信号和频率为13.2 GHz的单音微波信号. 在接收端，目标回波信号经去斜后用来实现距离和径向速度测量以及高分辨率逆合成孔径成像. 实验结果表明，测量得到的目标的距离和径向速度绝对误差分别不超过4.2 cm和1.7 cm/s，多个探测目标成像结果清晰可辨.

Abstract

In radar systems

to achieve high-precision multi-dimensional measurement of targets

radar signal generation is a basic and important function. A microwave photonic frequency-quadrupled composite radar signal generation approach is proposed. The composite radar signal includes a single-chirped linearly frequency-modulated (LFM) signal and a single-tone microwave signal. The single-tone microwave signal and the single-chirped LFM signal are jointly used to measure the radial velocity of a target

while the single-chirped LFM signal is used to measure the distance of the target and implement the high-resolution microwave imaging. In the transmitter

an up-chirped LFM signal with an instantaneous bandwidth of 2 GHz and a 13.2 GHz single-tone microwave signal are generated using a photonic frequency quadrupler. In the receiver

target echo signals are de-chirped and then used to achieve the measurement of distance and radial velocity and the high-resolution ISAR imaging. Experimental results show that the absolute measurement errors of distance and radial velocity are no more than 4.2 cm and 1.7 cm/s

respectively

and the imaging results of multiple targets are clear and identifiable.

关键词

Keywords

references

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