›› 2013, Vol. 26 ›› Issue (6): 148-.

• 论文 • 上一篇    下一篇

基于Keystone变换的长时间相参积累研究

李春林,吴琳拥   

  1. (四川九洲电器集团 第2研究所,四川 绵阳 621000)
  • 出版日期:2013-06-15 发布日期:2013-06-04
  • 作者简介:李春林(1984—),男,硕士,工程师。研究方向:雷达信号处理和雷达系统设计。E-mail:chunlin@yahoo.cn。吴琳拥(1973—),男,硕士,工程师。研究方向:雷达信号处理和雷达系统设计。

Study and Simulation of Long-time Coherent Integration with Keystone Transform

LI Chunlin,WU Linyong   

  1. (Second Institute,Sichuan Jiuzhou Electric Group,Mianyang 621000,China)
  • Online:2013-06-15 Published:2013-06-04

摘要:

长时间相参积累是提高弱小目标检测的一种有效方法,但随着积累时间的增加,会产生目标跨距离单元走动的问题。文中在信号处理算法中引入Keystone变换来补偿距离走动带来的影响,可以在不需要先验速度信息的情况下,实现目标的长时间积累。仿真实验验证了Keystone变换实现距离走动补偿的有效性,并形成了一套较完整的雷达信号处理算法。

关键词: 长时间相参积累, Keystone变换, 补偿, 信噪比, 跨距离单元走动

Abstract:

Long-time coherent integration is a key technique for small moving targets detection under low signal noise.However,the integration and detection for long time should deal with the problem resulting from target range-cell-crossing.An effective way is to employ keystone transform to compensate the influence of range migration,thus achieving coherent integration of all moving targets regardless of their unknown velocity.The paper presents a complete set of algorithms for radar signal processing,and the effectiveness of the algorithms is confirmed.

Key words: long-time coherent ntegration;Keystone transform;compensate;SNR;range-cell-crossing

中图分类号: 

  • TN957.51