风廓线雷达去地杂波方法研究

针对传统的回波模拟方法不能很好的模拟高斯白噪声的分布, 也不利于反应真实的回波信号的问题, 改进了回波信号的模拟方法, 同时为了减小地杂波对信号参数估计的影响, 在静态小波变换的基础上, 提出了一种抑制风廓线雷达地杂波的方法, 由于采用提升实现方式, 其运算量并没有明显增加。相对于传统的基于 DWT 去地杂波的方法, 新方法更加适用于较低信杂比的情况。仿真结果验证了新方法的有效性。

Ground Clutter Suppression of Wind Profiler Radar

Aimed at the problems that the traditional echo simulation methods cannot well simulate the distribution of Gaussian white noise, and is not conducive to react the real echo signal as well, the authors improve the echo signal simulation method, and propose a method to removing ground clutter from wind profiler radar based on static wavelet transforms (SWT). The new methods can be applied to lower signal to clutter ratio (SCR) whose calculation amount is little more than traditional method based on discrete wavelet transforms (DWT) . The simulation results show the validity of the algorithm.