频谱估计算法在炮口初速测量雷达工程的实现

›› 2011, Vol. 24 ›› Issue (11): 109-.

频谱估计算法在炮口初速测量雷达工程的实现

王毅,高剑

(北方雷达电子科技集团有限公司雷达部,陕西西安 710100)

出版日期:2011-11-15 发布日期:2011-11-25
作者简介:王毅(1978—),男,硕士研究生。研究方向:火控雷达总体设计,火控雷达信号处理。

Engineering Implementation of the Frequency Estimation Algorithm on Speed Radar for Muzzle Velocity

WANG Yi, GAO Jian

(Radar Department,China Northern Radar Electronics Technology Group Corporation,Xi'an 710100,China)

Online:2011-11-15 Published:2011-11-25

摘要/Abstract

摘要：

雷达信号频率参数的测量结果决定了测速雷达的精度。介绍了两种频率估计方法,并应用FFT、MUSIC和ESPRIT算法对高斯白噪声下的多普勒速度进行了估计。通过结果分析,比较了在不同条件下,几种算法的估计精度。结果表明,在信号一定信噪比条件下,采用MUSIC、ESPRIT算法能够实现高精度频率估计。

关键词: 工程实现, 多信号分类频率估计法(MUSIC), 子空间旋转不变频率估计法, 频谱估计

Abstract:

The measurement result of radar signal frequency decides the precision of speed radar.This paper mainly introduces two methods of frequency estimation,and estimates the Doppler velocity in white gauss noise using FFT,MUSIC and ESPRIT algorithms.By Matlab simulation,it compares the estimating precision of the three algorithms under different conditions.The result indicates that MUSIC and ESPRIT algorithms can achieve high precision of frequency estimation at a certain SN ratio.

Key words: engineering design;multiple signal classification(MUSIC);estimating signal parameter via rotational invariance techniques(ESPRIT);spectrum estimation

中图分类号:

TN953+.2

王毅, 高剑. 频谱估计算法在炮口初速测量雷达工程的实现[J]. , 2011, 24(11): 109-.

WANG Yi, GAO Jian. Engineering Implementation of the Frequency Estimation Algorithm on Speed Radar for Muzzle Velocity[J]. , 2011, 24(11): 109-.