系统工程与电子技术

• 传感器与信号处理 • 上一篇    下一篇

发射信号泄露的连续波雷达方程

马可, 李慧敏, 王仁涛, 党晓方, 王毅   

  1. 西安电子工程研究所, 陕西 西安 710100
  • 出版日期:2016-05-25 发布日期:2010-01-03

Continuous wave radar equation with the leakage of transmitted signal

MA Ke, LI Hui-min, WANG Ren-tao, DANG Xiao-fang, WANG Yi   

  1. Xi’an Electronic Engineering Research Institute, Xi’an 710100, China
  • Online:2016-05-25 Published:2010-01-03

摘要:

连续波雷达存在发射信号泄露的现象,泄露的发射信号边带噪声会淹没目标回波信号,使接收机灵敏度降低。而传统连续波雷达方程并没有考虑到这一现象对雷达性能的影响。在分析了传统连续波雷达方程的不足后,通过增加收发通道隔离度和发射信号相位噪声两个参数,对传统连续波雷达方程进行修正,使雷达方程中体现了发射信号泄露对连续波雷达的影响。这种改进的连续波雷达方程可以更切实际地描述出作用距离和雷达参数及目标特性之间的关系。

Abstract:

The continuous wave (CW) radar has the phenomenon of transmitted signal leakage. The leakage of the transmitted signal sideband noise would drown the echo signal of targets and lower the receiver sensitivity. The traditional CW radar equation does not consider the effect on the performance of radar. By increasing the two parameters of the transmitter receiver isolation and the phase noise of the transmitted signal, the traditional CW radar equation is modified after analyzing its deficiency. The influence of transmitted signal leakage on the CW radar is reflected in this radar equation. This improved CW radar equation can be more realistic to describe the relationship between the range and the radar parameters and the target characteristics.