Signal Processing and Parameter Design of HPRF Pulsed-Doppler Stepped-Frequency Radar

REN Li-xiang; LONG Teng; YUAN Hai-peng

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Signal Processing and Parameter Design of HPRF Pulsed-Doppler Stepped-Frequency Radar

更新时间：2025-07-16

- Signal Processing and Parameter Design of HPRF Pulsed-Doppler Stepped-Frequency Radar
- Acta Electronica Sinica Vol. 35, Issue 9, Pages: 1630-1636(2007)
- 作者机构：
  
  1. 北京理工大学雷达技术研究所,北京,100081
  2. 中国电子科技集团公司,北京,100846
  3. 北京理工大学雷达技术研究所北京,100081
  4. 中国电子科技集团公司北京,100846
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN958.3
- Published：2007
- 稿件说明：
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REN Li-xiang, LONG Teng, YUAN Hai-peng. Signal Processing and Parameter Design of HPRF Pulsed-Doppler Stepped-Frequency Radar[J]. Acta Electronica Sinica, 2007, 35(9): 1630-1636.
DOI：

REN Li-xiang, LONG Teng, YUAN Hai-peng. Signal Processing and Parameter Design of HPRF Pulsed-Doppler Stepped-Frequency Radar[J]. Acta Electronica Sinica, 2007, 35(9): 1630-1636. DOI：

摘要

频率步进雷达是一种距离高分辨雷达

传统的处理方法是采用频时转换(IDFT)获得目标的一维距离像

实际上其处理也可以采用时频转换(DFT)的方式进行

这时也可把频率步进雷达看作是一种载频跳变的脉冲多普勒(PD)雷达.采用这种分析方法的优点是

在高重复频率(HPRF)的情况下

可以通过雷达系统的参数设计和信号处理

同时获得不模糊的测速性能和距离高分辨性能

并解决HPRF PD雷达的距离模糊问题.本论文在分析频率步进雷达时频转换(DFT)处理的基础上

给出了HPRF PD频率步进雷达系统参数设计准则及频时耦合的解决方法

以及距离模糊问题的解决方案.理论分析和仿真结果证明

这种雷达体制可以同时获得不模糊测速和距离高分辨性能.

Abstract

Stepped-frequency radar has the ability of high range resolution(HRR).It normally adopts frequency-time transformation(IDFT) processing to get the range profile of targets.Alternatively stepped-frequency radar can also use time-frequency transformation(DFT) processing

with which it is seen as a kind of pulsed-doppler(PD) radars that use stepped-frequency pulses. Through parametric design and signal processing methods of the radar system

DFT method can achieve both unambiguous velocity and high resolution ranging in a single dwell under HPRF circumstances.The range ambiguity problem in HPRF PD radars can be resolved by careful design of parameters and signal processing methods.This paper analyzes the time-frequency transformation processing of stepped-frequency radars

based on which the HPRF PD stepped-frequency radar system’s parameter design principle

solutions to the frequency-time coupling issue and range ambiguity are also given.Both theoretical analysis and simulation result prove that this radar scheme can simultaneously achieve unambiguous velocity and high resolution ranging.

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