地物杂波具有面积大、能量强、分布不确定的特点,是影响天气雷达气象参数估计的主要因素。文中针对强杂波下的气象目标探测,采用基于频域滤波的自适应杂波抑制方法,系统地分析了不同杂波背景下自适应杂波抑制对气象参数测量的影响,并给出了误差补偿模型。最终通过实测数据完成算法验证,在杂波抑制的同时可以有效修正气象参数测量结果,具有较高的工程应用价值。

Ground clutter has the characteristics of large area, strong energy and uncertain distribution, which is the key factor affecting meteorological parameters estimation for weather radars. In this paper, the influence of adaptive clutter suppression method based on frequency domain filtering on meteorological parameters estimation under different clutter backgrounds is analyzed, and the error compensation model is given. Finally, the algorithm is verified by real radar dates, while adaptive clutter suppression method can effectively modify the meteorological parameters estimation results, has a high engineering application value.

TN957. 52