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兵工学报 ›› 2004, Vol. 25 ›› Issue (2): 232-237.

• 研究简报 • 上一篇    下一篇

关于矩形脉冲类信号Doppler分辨的算法研究

郭强,陶然,王越,周思永   

  1. 北京理工大学电子工程系,北京,100081
  • 收稿日期:2003-01-01 修回日期:2004-01-01 上线日期:2014-12-25
  • 通讯作者: 郭强
  • 基金资助:
    国家自然科学基金资助项目(60232010)

A Study on the Algorithm of Doppler Resolution of signals Resembling Rectangular Pulses

GuO Qiang, Tao Ran, Wang Yue, Zhou Siyong   

  1. Department of Electronics Engineering, Beijing Institute of Technology, Beijing, 100081
  • Received:2003-01-01 Revised:2004-01-01 Online:2014-12-25
  • Contact: Guo Qiang

摘要: 对于由矩形脉冲构成的复杂信号来说,若按定义式计算其速度名义分辨参数或Doppler分辨常数往往比较复杂,特别是对于多周期信号更是如此。本文在求得信号模糊函数的基础上,抛开了分辨力的定义计算式,提出了从信号的模糊函数矩阵中,找出半功率点所在的行数,从而使这一问题得到解决,为快速估算信号的速度名义分辨参数提出了一种新的算法。另外,在对多周期“同步加白”信号Doppler分辨常数的计算中,充分利用单周期信号的计算结果,使对包络函数高次项的积分得到简化,避免了复杂、重复的运算,提高了计算效率。

关键词: 雷达工程 , 矩形脉冲 , Doppler分辨 , 同步加白

Abstract: The calculation for the nominal velocity resolution parameter and Doppler resolution constant of a signal made up of several rectangular pulses according to the definition is always complex, especially when it is a multiple-period signal. Apart from the definition of the resolution, tne paper put forward a novel algorithm to search for the row of the ambiguity function matrix where the “half power point exists and then solves the problem mentioned a Dove. In addition, the result of the signal in single periods is used to calculate the Doppler resolution constant of sync-plus-white signal m several periods and the integral of high power terms of the envelop function is simplified, avoiding complicated and duplicated calculations and raising the efficiency.

Key words: radar engineering , rectangular pulse , Doppler resolution , sync-plus-white

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