快速波束扫描检测技术在机载海面监视雷达中应用效能评估

机载海面监视雷达采用快速扫描和扫描间检测前跟踪相结合的技术进行强海杂波背景中慢速运动小目标检测。该技术对于长相关时间的“海尖峰冶可以达到较好的抑制效果,但在噪声区的检测威力会有一定程度的下降。首先,对不同扫描速度条件下杂波区检测性能得益进行了定量分析;然后,从三个方面对该技术在噪声区的的检测损失进行了评估;最后,综合杂波区检测得益和噪声区检测损失两个方面的因素,给出了机载海面监视雷达工作方式设置及组合应用的建议。相关研究对于机载海面监视雷达总体设计具有重要指导意义。

Airborne Maritime Surveillance Radar Detection Capability Evaluation Based on Fast-scanning Beam Technology

Airborne maritime surveillance radar adopts fast scanning beam and scan to scan integration technology to ensure the detection of slow moving targets in strong sea clutter background. The technology can suppress long correlation sea spike effectively, but suffer detection ability decline in noise background, comparing to conventional slow scanning detection strategy. Aiming at the technology, an analysis of the detection gain under condition of different scanning speed in sea clutter zone is made firstly in this paper, then the detection loss in noise zone is evaluated, caused by three acting factors. Taking clutter zone detection gain and noise zone detection loss in account, the advises of airborne maritime surveillance radar operation modes selection and combination are presented. Main research achievements in the paper have important meaning and value for the design of maritime surveillance radar.