日本邮政省通讯综合研究所研究用短波雷达,从陆地观测海流速度和流向装置成功。这种装置通过试用不但能得到丰富的海洋气象资料,还能得到详细的渔业和海难救助所需要的情报。它是将周波数为24兆赫的短波送向海面,观测波长约6米的波浪动向。当电波射到波浪上时,会发生散乱,通过分析当时发生散乱波的周波数的微妙差值,即可测出波浪的任何速度,向远方还是向近方推来。 Japan’s Ministry of Posts and Telecommunications Institute of Integrated Research shortwave radar research, from the ocean to observe the current speed and flow device success. Such devices not only receive extensive marine meteorological data through trial, but also receive detailed information needed for fisheries and salvage operations. It is the shortwave frequency of 24 MHz sent to the sea, the observed wavelength of about 6 meters wave direction. When the radio waves are scattered on the waves, they are scattered. By analyzing the subtle difference in the number of the scattered waves at that time, any speed of the waves can be measured and the distance can be pushed forward or backward.