| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To survey an aircraft, and simultaneously to prevent danger of an aircraft flying near an airport. <P>SOLUTION: This radar includes: a determination part (134i) for determining existence of an aircraft flying along a dangerous course; a setting part (135) for setting a timing for transmitting an avoidance instruction signal for urging avoidance of collision to an airborne collision avoidance system loaded on the aircraft, when determined by the determination part that an aircraft flying along the dangerous course exists; a frequency switching part (137) for outputting to a transmitter, a received frequency of an interrogation signal specified for transmission of the avoidance instruction signal, at the transmission timing of the avoidance instruction signal set by the setting part; and a transmission control part (131) for controlling the transmitter so as to transmit the avoidance instruction signal of the received frequency of the interrogation signal output from the frequency switching part at the transmission timing. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
