In order to improve the power of detecting radar weak signal, the key is to restrain noise of radar weak signal.

为了提高雷达检测弱信号的能力，对它的去噪就显得非常重要。

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The information of the rain-detecting radar is to be used for calculating the regional rainfall so as to improve the relevant calculation solely based on data from limited rain gauge stations.

拟用测雨天气雷达信息来进行有关雨量的计算以弥补单纯依靠有限个雨量站点计算面雨量的不足。

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In this dissertation, the design of the hardware and software of the detecting radar based on the ultrasonic pulse are completed, including the debugging on the system and the hardware of CW radar.

本课题完成了基于超声波脉冲的测距雷达的硬件设计、软件设计及系统调试并且完成了测速雷达的硬件调试。

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It should be noted, however, that even with modern radar technology detecting more minor tornadoes that could be detected in prior decades, the number of F2-to-F5 tornadoes (in other words, all but the very weakest of tornadoes) has similarly been declining since the mid-1970s.

FORBES: Global Warming Taking The Wind Out Of Tornadoes

This information has been provided by Radarsat, a Canadian satellite capable of detecting detailed water and land features through thick clouds, fog and rain using synthetic-aperture radar equipment.

ECONOMIST: A deluge of information | The