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Weather radar signal processing apparatus and ground clutter removal method thereof

机译:天气雷达信号处理装置及其地杂波去除方法

摘要

PPROBLEM TO BE SOLVED: To automatically find an effective parameter for MTI and speed width filter. PSOLUTION: The meteorological radar signal processing apparatus includes an MTI processor A1 that computes ground clutter elements from the reception signals of a target-reflected wave, on the basis of the predetermined MTI parameters and removes them; a speed width filter A2, that compares signals wherein the ground clutter is removed by the MTI processing with thresholds based on the predetermined speed width parameters and extracts meteorological echo elements included in the signals processed by the MTI processing; and a meteorological information computing section A3, that obtains meteorological information from the output of the speed width filter. Observation data and simulated weather echo at the radar installation point are used to automatically search the optimal values of the MTI parameter and the speed width parameter, and the automatically searched MTI parameter and speed width parameter are set in the MTI processing apparatus A1 and the speed width filter A2, in advance, so that parameters can be automatically adjusted by simulation in an off-line mode. PCOPYRIGHT: (C)2011,JPO&INPIT
机译:

要解决的问题:自动找到MTI和速度宽度过滤器的有效参数。

解决方案:气象雷达信号处理设备包括MTI处理器A1,该MTI处理器A1根据预定的MTI参数从目标反射波的接收信号中计算出地面杂波元素,并去除它们。速度宽度滤波器A2,将通过MTI处理去除了地面杂波的信号与基于预定速度宽度参数的阈值进行比较,并提取包括在通过MTI处理的信号中的气象回波要素;气象信息计算部分A3,从速度宽度滤波器的输出中获得气象信息。使用雷达安装点处的观测数据和模拟的天气回波来自动搜索MTI参数和速度宽度参数的最优值,并且在MTI处理设备A1中设置自动搜索的MTI参数和速度宽度参数和速度。预先设置宽度滤波器A2,以便可以在离线模式下通过仿真自动调整参数。

版权:(C)2011,日本特许厅&INPIT

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