一种改进的地波雷达邻近距离单元格一阶海杂波对消方法  

An Improved First Order Sea Clutter Cancellation Method of Adjacent Range Cell for HFSWR

作　　者：钱文振[1,2] 纪永刚[2] 王祎鸣[2] 许乐达[1,2] 戴永寿[1] 于长军[3] 

机构地区：[1]中国石油大学(华东),山东青岛266555 [2]国家海洋局第一海洋研究所,山东青岛266061 [3]哈尔滨工业大学(威海),山东威海264209

出　　处：《海洋科学进展》2013年第1期138-144,共7页Advances in Marine Science

基　　金：海洋公益性行业科研专项经费项目--海上非法舰船SAR和地波雷达立体监视监测应用技术系统(200905029);高频天波/地波集成技术非协作目标信息获取与处理(61032011)

摘　　要：基于邻近距离单元格海杂波特性相关性,分析了不同相干积累时间所导致的目标距离模糊,改进了邻近距离单元格海杂波对消法,此方法克服了邻近单元格海杂波对消所引起的目标对消问题。将研究方法中使用的杂波抑制处理结果应用于CFAR船只目标检测算法,可明显降低目标检测中虚警的概率。Based on the correlation of sea clutter of adjacent range cells, the target fuzzy distance caused by different coherent accumulation time is analyzed and the sea clutter of adjacent range cell cancellation algorithm is improved. This method has overcome the problem of target cancellation caused by the neighboring cell sea clutter cancellation. By using the results from the clutter suppression processing proposed in the paper to the CFAR ship target detection algorithm, the false alarm rate of the target detection could be obviously reduced.

关 键 词：高频地波雷达 一阶海杂波 杂波抑制 目标检测 

分 类 号：TN958.93[电子电信—信号与信息处理]