基于位置信息的宽带雷达目标距离段联合检测算法

Range-associated Detector for Wideband Radar Targets Based on Position Information

宽带雷达目标回波表现为距离扩展目标的形式,距离扩展目标检测技术是目前雷达信号处理领域的一个热门和难点问题。文章通过对宽带雷达目标回波的分析,总结了回波的主要特性,详细介绍了采用基于距离窗信息的双门限检测器对宽带雷达信号进行检测的方法,提出了基于高分辨雷达目标一维距离像位置—径向距离相关信息的非参数检测方法。仿真结果表明,该方法不但计算复杂度低,而且还具有检测沿径向距离"走廊"上多个扩展目标的能力。

The wideband radar echo is modeled as a range-spread target. Moreover, the range-spread target detection is a difficult and crucial problem in the radar signal processing field. This paper summarizes key RCS characteristics of target through analyzing the RCS characteristics of wideband radar target. It also introduces detection method for wideband radar signal which utilizing the double threshold detector based on the range bin information, and proposes a nonparametric detection method, which based on the radial range correlation information of one-dimensional range images of high resolution radar targets. Finally, experimental results for measured illustrate that the proposed algorithm not only needs less computation, but also is able to detect multiple range-spread targets along distance ＂corridor＂.