摘要：
本发明公开了一种风廓线雷达干扰抑制方法，包括以下步骤：步骤一：选定最优的分数阶次αopt；步骤二：对经相干积累后的时域数据在最优分数阶αopt下进行分数阶傅立叶变换，得到相应的分数阶域信号形式；步骤三：以接收信号在分数阶域内的各阶矩的统计特性为依据来确定杂波干扰检测阈值；步骤四：对抑制后的数据进行逆分数阶傅立叶变换，获得去除杂波后的时域风廓线雷达数据，完成杂波抑制处理；风廓线雷达接收信号经过此方法处理后，能够降低无线电信号对风廓线雷达的影响，且能够显著的改善信噪比，实用性强。
摘要（英）：
The invention discloses a method for suppressing interference on wind profile radar. The method includes steps of firstly, selecting the optimal fractional order alpha; secondly, carrying out fractional Fourier transformation on coherent accumulative time-domain data under the condition of the optimal fractional order alpha to obtain corresponding fractional-domain signal forms; thirdly, determining clutter interference detection thresholds on the basis of statistic characteristics of all order moments of received signals in fractional-domains; fourthly, carrying out inverse fractional-domain Fourier transformation on suppressed data to obtain clutter-removed time-domain wind profile radar data so as to completely suppress and process clutter. The method has the advantages that the influence of wireless electric signals on the wind profile radar can be reduced after the received signals of the wind profile radar are processed by the aid of the method, the signal-to-noise ratios can be obviously improved, and the method is high in practicality.
