| 摘要 |
<p>PURPOSE:To rapidly obtain accurate data relating to rainfall quantity in real time, by providing a receiver, an A/D converter and a data processing circuit, etc. CONSTITUTION:The radar video signal RVS outputted from a receiver 10 is converted to a digital value by an A/D converter 11 on the basis of the sampling timing ST of a sampling signal emitted at each time when the relative distance between a radar apparatus and objective rainfall is changed by a predetermined distance to be added to a data processing circuit 30 as radar video data RVD. The circuit 30 is constituted to a first adder 31, a correction value memory 32 and an integrating circuit 33. The adder 31 adds the output of the circuit 33 to the output of the A/D converter 11 on the basis of the sampling timing ST and the added value is outputted as rainfall data RD at any time. As mentioned above, by providing only a simple hard ware circuit, accurate data relating to rainfall quantity can be obtained rapidly.</p> |
