一种舰载毫米波雷达海杂波背景下的慢速小目标检测算法研究

掠海飞行慢速小目标的检测一直是雷达信号处理领域研究的热点问题。分析了海杂波数据的统计特性,利用天线扫描间海杂波非相关特性,采取单次扫描脉冲间非相参积累,结合天线扫描间积累和杂波图迭代平滑处理技术,抑制海杂波,积累目标能量,改善检测性能。仿真结果表明利用本方法毫米波雷达能有效检测海杂波环境下的慢速小目标。

Research into A Detection Algorithm of Shipborne Millimeter Wave Radar to Slow and Small Target in Sea Clutter Background

The detection of slow and small target sweeping over the sea surface is always a hot-point problem in radar signal processing domain.This paper analyzes the statistical characteristics of sea clutter data,uses the irrelevant features of sea clutter between antenna scanning,adopts the incoherent accumulation between single scan pulses,combining the accumulation between antenna scanning and clutter map iterative smoothing technique to suppress sea clutter,accumulate target energy and improve target detection performance.The simulation results show that the slow and small targets in sea clutter can be detected by millimeter wave radar by using the proposed method.