机载雷达舰船目标检测主要在海杂波背景下进行,受海杂波影响大,常规非相参积累检测没有充分利用目标和海杂波的特性差异,检测性能有待提升。文中对机载雷达杂波特性、目标特性进行了理论分析建模,提出了基于相参处理的舰船目标检测架构,该方法综合干扰抑制、相参积累、杂噪识别和分区检测进行相参处理,在距离、多普勒平面有效识别海杂波和噪声区域的基础上实现匹配检测。最后基于实测数据进行了分析验证,显示了很高的工程应用价值。

Ship target is mainly detected in sea clutter with airborne radar, and then the detection performance is greatly bounded by clutter. Conventional detection methods based on noncoherent accumulation has great potential to be improved. Sea clutter and ship target are both modeled and analyzed theoretically in this paper, and a new detection scheme based on coherent processing is presented, which combines interference suppression, coherent accumulation, clutter discrimination and divisional detection methods. Finally, real radar data are analyzed to demonstrate the validity, which shows good reference value in engineering application.

TN974