English

应用科学学报 ›› 2000, Vol. 18 ›› Issue (2): 114-116.

• 论文 • 上一篇    下一篇

机动目标三维成象中调频信号超分辨方法

张群, 马长征, 张守宏   

  1. 西安电子科技大学雷达信号处理重点实验室, 陕西西安 710071
  • 收稿日期:1999-05-29 修回日期:1999-09-12 出版日期:2000-06-30 发布日期:2000-06-30
  • 作者简介:张群(1964-),男,陕西西安人,讲师,博士.

Superresolution of Chirp Signals and Its Applications to Three Dimensional Imaging of Maneuvering Targets

ZHANG Qun, MA Chang-zheng, ZHANG Shou-hong   

  1. Key Laboratory of Radar Signal Processing, Xidian University, Xi'an 710071, China
  • Received:1999-05-29 Revised:1999-09-12 Online:2000-06-30 Published:2000-06-30

PDF

77

被引次数

14

摘要： 机动目标的各散射点多普勒回波信号在运动补偿后一般表现为线性调频信号.通过对Relax算法进行扩展得到调频信号参数的超分辨估计并应用于机动目标单脉冲雷达三维成象,成象效果优于基于解调频方法的成象结果.

关键词: 机动目标, 超分辨, 单脉冲雷达, 三维成象

Abstract: For a maneuvering target, the Doppler of scatterers take the form of LFM signals after movement compensation. Superresolution methods are based on the models of both the signal and the noise. In this paper, we extend the Relax algorithm to the case of LFM signals and apply it to monopulse three-dimensional imaging. Simulation results shows that the images thus formed are superior to those formed by the traditional dechirping method.

Key words: superresolution, maneuvering target, monopulse rader, three dimensional imaging

中图分类号: