从高频地波雷达回波谱中检测移动目标信息的初步研究

从高频地波雷达回波谱中检测移动目标信息的初步研究 An Early Study on Moving Target Detection from OSMAR2000’s Doppler Spectrum 吴雄斌 WU Xiong bin 1 1 2 first-author 吴世才 WU Shi cai 1 1 2 文必洋 WEN Bi yang 1 1 2 陈化 CHEN Hua 2 1 2 武汉大学电子信息学院 武汉大学电子信息学院 School of Electronic Information, Wuhan Univeristy School of Electronic Information, Wuhan Univeristy 武汉大学数学与统计学院,湖北,武汉,430072 武汉大学数学与统计学院,湖北,武汉,430072 School of Mathematics and Statistics, Wuhan University School of Mathematics and Statistics, Wuhan University 提出了一种适合于高频海态雷达移动目标检测的方法 ,该方法的原理基于硬目标与海面连续目标之间特征尺度不同 .利用数值模拟说明了这种方法的有效性 ,将它应用到 OSMAR2 0 0 0高频地波雷达对比验证试验期间实测数据的处理中 ,获得了一个由两个单站同时探测得一个可能的移动目标的实例 ,同时指出这种方法在海流提取中应用的可能性 Proposes that angular differential spectrum is more suitable for moving target detection than Doppler spectrum. The observation is based on different characteristic scales of hard targets and continuous ocean scattering. Numerical simulation demonstrates the effectiveness of the proposed differential spectrum method. Its application on the Doppler spectra obtained by HF surface wave radar OSMAR2000’s detection yields a case in which a possible target was observed by two simultaneously operating single radars located at different sites. The method is also applicable in radial surface current extraction. 高频地波雷达 移动目标 空间谱 差谱 HF grownd wave radar moving target space spectrum differential spectrum TN929.53 国家 8 63计划资助项目 （863 -818-0 1-0 2 ） 2001-05-01 2021-04-01 5