| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a radar system such as an airport surface detection radar used in control of an aircraft allowing synchronous rotation with distribution of no angle signal to a plurality of antennas. <P>SOLUTION: This synchronous rotation device for the antennas is provided with a precise timepiece device 12a such as a radio-controlled timepiece allowing calibration using an existing radio broadcasting wave, and a synchronous circuit 3a synchronized with a time signal from the timepiece device 12a in every of the antennas 9a. The synchronous rotation device for the plurality of antennas is realized without transmitting the angle signal in the every antenna of the respective radar systems. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
