摘要
球载雷达采用下视探测工作模式时,其检测能力主要受地杂波制约。本文分析了地杂波对雷达回波幅度调制的影响,提出了一种利用回波幅度特征进行目标检测的新方法——幅度周期目标检测法,该方法能够在检测目标的同时获得目标速度信息。仿真结果表明该方法在低信杂比情况下相对于传统方法具有更好的检测性能。最后通过实测数据验证了该方法的有效性。
Detection probability of ball-borne radars operating in down-looking mode is mostly restricted by ground clutter. In this paper, influence of ground clutter on echo is analyzed first, and a new target detection method based on the characteristic of echo＇s amplitude is proposed. One of the merits of the method is that it can extract target velocity parameters. Simulation results show that the proposed detection method is prior to traditional method, especially under the low signal-to-clutter ratio （SCR） condition. Measured data is used to validate the proposed method further.
出处
《信息化研究》
2010年第6期30-32,48,共4页
INFORMATIZATION RESEARCH
关键词
地杂波
目标检测
信杂比
ground clutter
target detection
SCR
