摘要
针对新一代天气雷达距离分辨率提高的需求,提出并介绍了一种对天气回波信号进行距离过采样,用最小方差谱估计(MVM)方法来挖掘距离高分辨率信息的设计方案和算法原理,以高斯谱天气回波模型仿真实现了整个算法过程。处理前后回波信号的平均功率及速度估计结果对比,表明了该方法的可行性。
Aiming at the needs of range resolution enhancement in weather radar,a design scheme and its arithmetic principle based on oversampling weather echoes in range and using minimum variance method(MVM) to dig out high range resolution information has been put forward and described in this paper,which is simulated and implemented with GAUSS spectral model as weather echoes. The results contrast of mean signal power,mean velocity before and after processing show the feasibility of the proposed method.
出处
《电子测量与仪器学报》
CSCD
2008年第S2期49-52,共4页
Journal of Electronic Measurement and Instrumentation
关键词
天气雷达
距离分辨率提高
距离过采样
最小方差
weather radar,range resolution enhancement,range oversampling,minimum variance method
