高频地波雷达中电离层杂波的自适应抑制

首先分析了高频地波雷达中电离层杂波的类型，并给出了电离层杂波的仿真结果。在此基础上，给出了利用相参旁瓣对消滤波器对电离层杂波进行自适应抑制的方法。利用辅助天线输出中的干扰成分，自适应的调整其加权系数，最大程度的估计出主天线输出中的干扰。然后在主天线的输出中减去这个估计出的干扰。最后，对现有的相参旁瓣对消滤波器进行改进，并且给出了改进的相参旁瓣对消滤波器的抑制结果。

Adaptive Suppression of the Ionospheric Clutter in the HFSWR

In this paper,different kinds of the ionospheric clutter in HFSWR are analyzed,and simulation results of the ionospheric clutter are given. On basis of the analysis,an adaptive suppression method of the ionospheric clutter using the standard CSLC filter is suggested. Using an adaptive process, the weights of the auxiliary antenna outputs are adjusted, and the interference in the main antenna output are estimated. Then the interference estimates are subtracted from the main antenna output. At last,the standard CSLC filter is modified,and an improved cancellation result is given.