改进的非相参导航雷达探测有效浪高算法  

Improved Algorithm of Detecting Significant Wave Height Based on the Incoherent Navigation Radar

作　　者：卢雄赳 付微[1] 吴雄斌[1] 林航 王立[1] 马克涛[1] 田云[1] 

机构地区：[1]武汉大学电子信息学院,武汉430072 [2]福建省海洋预报台,福州350003

出　　处：《科学技术与工程》2014年第35期72-75,共4页Science Technology and Engineering

基　　金："十二五"国家863计划(2012AA091701);中央高校基本科研业务费专项资金(2014212020203)资助

摘　　要：针对X波段非相参导航雷达对海杂波的成像,研究了利用信噪比和布拉格散射探测有效浪高的方法,提出一种用最大流速带通滤波来分割信号与噪声获取信噪比的算法。结合信噪比与有效浪高的关系,经相关定标处理,得到探测区域连续的有效浪高。与传统的X波段导航雷达测高方法相比,该算法不需要得到雷达探测区域精准的流速,简单高效,占用资源少。与舟山浮标有效浪高数据的对比,表明其有效提高了雷达测浪高的便捷性和稳定性。In the light of the sea clutter imaging using X-band incoherent navigation radar, the detection method of the significant wave height based on signal to noise ratio （SNR） and Bragg scattering is studied. An algorithm that maximum velocity of band-pass filter is used to split the signal and noise to obtain SNR is presented. Combina- tion of SNR and effective wave height, through relevant calibration processing, continuous effective wave height can be gotten. Comparing with the conventional significant wave height detection method of incoherent navigation radar, this new algorithm is simple and efficient without accurate current velocity. The comparison with the significant wave height data of Zhoushan buoy shows that it effectively improves the conveniences and stability of the radar.

关 键 词：X波段导航雷达 有效浪高 信噪比 最大流速 带通滤波 

分 类 号：TN957.52[电子电信—信号与信息处理]