大气波导条件下雷达海杂波功率仿真  

Radar sea clutter power modeling under the atmospheric duct propagation conditions

作　　者：赵小峰[1] 黄思训[1] 

机构地区：[1]解放军理工大学气象学院,南京211101

出　　处：《物理学报》2013年第9期540-546,共7页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:41175025;41105012;41275113)资助的课题~~

摘　　要：考虑近海面大气折射率垂直梯度的变化,采用曲面波频谱估计方法(CWSE)计算掠射角,并结合修正的GIT海表反射率模型和雷达距离方程对大气波导条件下雷达海杂波功率进行仿真,最后通过数值实验及与实测数据比较,验证了CWSE方法的可行性.Taking into account the variations of the refractivity gradient near the sea surface, We have used the curved wave spectral estimation （CWSE） technique to calculate the grazing angle. CWSE combined with the modified GIT reflectivity model and radar range equation, the radar sea clutter power modeling is performed under the atmospheric duct propagation conditions. Finally, the validation of CWSE is tested through numerical experiments and comparisons with the real measurement data.

关 键 词：大气波导 雷达海杂波 曲面波频谱估计 

分 类 号：TN957.51[电子电信—信号与信息处理]