Non-Coherent Radar Detection Probability in Compound Sea Clutter with Correlated Speckle

被引：0

作者：

Bocquet, Stephen ^{[1
]}

Zuk, Josef ^{[1
]}

Rosenberg, Luke ^{[1
]}

机构：

[1] Def Sci & Technol Grp, Canberra, ACT, Australia

来源：

2018 IEEE RADAR CONFERENCE (RADARCONF18) | 2018年

关键词：

sea clutter; detection; compound Gaussian; SUM; PERFORMANCE; VARIABLES; TARGETS;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Robustly predicting target detection performance in temporally correlated clutter has proven to be a difficult problem. If the correlation is not accounted for in a radar model, the required signal to interference ratio for a given probability of detection will be incorrect, resulting in over-estimated performance. In this paper, we examine exact and approximate methods for calculating the probability of detection in compound clutter plus noise with correlated speckle. Inversion of the moment generating function by contour integration in the complex plane is found to be the best of the exact methods, being both fast and robust. Approximations based on an effective number of looks are found to be inaccurate in the tail of the interference distribution and therefore unsatisfactory for calculating the probability of false alarm. The effective looks approximation is reasonably accurate if the detection threshold is set using the saddlepoint approximation.

引用

页码：140 / 145

页数：6

共 16 条

[1] Sum of gamma variates and performance of wireless communication systems over Nakagami-fading channels [J].