部分均匀海杂波中雷达目标的平滑自适应检测

系统工程与电子技术

部分均匀海杂波中雷达目标的平滑自适应检测

时艳玲, 林毓峰, 宛汀

(南京邮电大学通信与信息工程学院, 江苏南京 210003)

出版日期:2016-11-29 发布日期:2010-01-03

#br# Smooth adaptive detector for radar target in partially homogeneous#br# sea clutter environment

SHI Yanling, LIN Yufeng, WAN Ting

(College of Telecommunications & Information Engineering, Nanjing University of
Post and Telecommunications, Nanjing 210003, China)

Online:2016-11-29 Published:2010-01-03

摘要/Abstract

摘要：

在部分均匀海杂波环境下,海杂波的瞬时功率波动起伏较大,导致海面目标检测的性能受到影响。为了减小此影响,引入一个平滑因子以实现对杂波功率的控制,提出了平滑〖CD*2〗广义似然比检测器(smoothgeneralized likelihood ratio test, SGLRT)。通过推导SGLRT的虚警概率表达式,表明其相对于杂波纹理分量的尺度参数具有恒虚警特性。在不增加计算复杂度的前提下,实验结果表明,在部分均匀的海杂波背景下,SGLRT优于GLRT。

Abstract:

In partially homogeneous sea clutter environment, the instantaneous power of sea clutter fluctuates sharply, which affects the performance of the detecting target in sea clutter. In order to reduce the influence, a smooth factor is used to control the clutter power, and the smooth generalized likelihood ratio test (SGLRT) is proposed. The analytic expression of probability of false alarm is derived to verify the constant false alarm ratio with respect to the scale parameter of texture. Without an additional computational complexity, experimental results show that the SGLRT outperforms the GLRT in the partially homogeneous sea clutter environment.

时艳玲, 林毓峰, 宛汀. 部分均匀海杂波中雷达目标的平滑自适应检测[J]. 系统工程与电子技术.

SHI Yanling, LIN Yufeng, WAN Ting. #br# Smooth adaptive detector for radar target in partially homogeneous#br# sea clutter environment[J]. Systems Engineering and Electronics.