宽波束高频地波雷达海面回波谱的数值模拟

宽波束高频地波雷达海面回波谱的数值模拟 A Numerical Wide-Beam Sea Echo Model for HF Ground Wave Radar Ocean Surface State Detection 吴雄斌 WU Xiong bin 1 1 2 first-author 文必洋 WEN Bi yang 1 1 2 吴世才 WU Shi cai 1 1 2 高火涛 GAO Huo tao 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 根据高频无线电波海洋回波谱理论 ,结合高频地波雷达单站探测的实际应用 ,建立了一个适合于研究高频地波雷达信号处理的海面回波多普勒谱的数值模型 .模型包含一阶峰、海流、二阶谱、硬目标回波、地形阻挡和噪声等成分 ,模型输出具备实测多普勒谱的典型特征 ,可用于检验高分辨率空间谱估计算法和海态参数的反演算法 Describes a numerical model which is applicable in the study of wide beam HF ground wave radar’s signal processing. Based on the backscatter theories of HF electromagnetic waves from ocean surface, the model contains the combination of the first order peak, the second order sea echo, currents, echo from hard targets, effect of land blocking and noises. Output spectrum from the model possesses typical features of real Doppler spectrum detected by OSMAR2000, and can be used to test the effectiveness of certain space spectrum estimation algorithms as well as sea state parameter inversion methods. 高频地波雷达 回波谱 数值模拟 HF ground wave radar sea echo spectrum numerical simulation TN958.9;TN955 国家 8 63计划资助项目 （863 -818-0 1-0 2 ） 2001-05-01 2021-04-01 5