无惯性扫描特性使数字相控阵天气雷达成为大气探测领域的一个重要发展方向,而回波强度(反射率因子)是气象雷达最重要的测量参数。文中根据数字相控阵雷达特性,分析了相控阵天气雷达强度影响因素,提出了一种基于性能评估的相控阵天气雷达回波强度自动校准技术,分析了技术原理和仿真结果,从而提升数字相控阵天气雷达强度探测的准确度。

Inertialess scanning characteristic makes digital phased array weather radar being one of important developing direction in the field of atmospheric exploration, and weather echo intensity (reflectivity factor) is the most important parameter to weather radar. The echo intensity influence factor of digital phased array weather radar according to its characteristic is analysed, and an automatic calibration method based on performance evaluation for echo intensity of digital phased array weather radar is proposed in this paper. The technical principle and simulation are also analysed, so as to improve intensity detection accuracy of digital phased array weather radar.

TN96