摘要
在非均匀杂波背景中和两个局部检测器的条件下,本文分析了分布式OS-CFAR检测在多脉冲非相干积累条件下的性能,与单脉冲检测,单传感器检测以及相应的最优固定阈值检测进行了对比。结果表明,多脉冲积累使分布式检测的性能有明显增强,脉冲积累数的增加使之与最优固定阈值检测的差距减小。而且尽管脉冲积累数的增加使分布式检测相对于单传感器检测的优势减弱,但是优势依然存在,并且在信噪比较低时较为明显。
This paper analyzes the distributed OS-CFAR detection with noncoherent integration of multiple pulses under the conditions of nonhomogeneous background and two local detectors. Compared with the monopulse detection and the single sensor detector and the corresponding optimal fixed threshold detection, the integration of multiple pulses improves the distributed detection obviously, and the increase of number of integrated pulses reduces its difference from the optimal fixed threshold detection. Although the increase of number of integrated pulses weaken the superority of distributed detection over the single sensor detection, the superority still exist and it is more obvious for low SNR.
基金
国防科研基金
关键词
分布式CFAR检测
多脉冲
非相干积累
Distributed CFAR detection, Multiple pulse, Homogeneous background, Multiple target, Clutter edge
