阐述从高频地波雷达海洋回波反演海洋表面流中，使用MUSIC算法提取径向流方位必须的信号预处理。
In this paper, signal preprocessing for bearing determination of ocean surface radial current mapping by HF ground wave radar based on MUSIC is investigated.
由于风矢量有二或三个分量，径向风速作为风矢量的一个分量，不能为反演风矢量提供足够的信息。
Since wind vector has two or three components, the radial velocity, as one component of wind vector, can not provide enough information for retrieving wind vector.
理论数值实验显示：在反演地壳S波速度结构时，SV分量接收函数比径向接收函数具有更好的收敛性。
The synthetic tests show that the convergence of SV-component receiver function inversion is faster than that of the radial receiver function inversion.
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