摘要
在风廓线雷达谱数据处理中,雷达低层距离库探测的谱数据通常出现地杂波与大气回波谱交叠的情况,为了有效抑制杂波干扰,并提高雷达探测范围和精度,需要对大气回波谱的谱矩进行有效估计。文中通过对多普勒回波功率谱分析,提出了一种基于高斯拟合估计雷达回波谱谱矩的方法,与常规方法比较,在低层距离库谱矩估计得到有效改进。
In wind profile radar spectral data processing, overlapping ground clutter and atmospheric echo spectra in detection data of lower range gates are often found, thus atmospheric echo spectral moment must be accurately estimated to suppress clutter interference and improve precision and range of radar detection. Power spectrum of the doppler echo is analysed, a method based on gaussian fitting is presented in this paper to estimate radar echo spectral moment. It has better performance than standard method in lower range gates spectral moment estimation.
出处
《现代雷达》
CSCD
北大核心
2009年第9期40-43,共4页
Modern Radar
基金
国家863计划激光技术领域资助项目
关键词
风廓线雷达
功率谱
谱矩估计
高斯拟合
wind profile radar
power spectrum
spectral moment estimation
Gaussian fitting
