| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a radar device for accurately measuring a phase by a phase monopulse system while simplifying the constitution of a receiving section. <P>SOLUTION: This radar device 100 is provided with: two receiving antennas 121 and 122 as a receiving system; a hybrid circuit 123 for receiving two received signals from the receiving antennas 121 and 122 and outputting a sum signal of both signals and a difference signal between both signals; a switch 124 for receiving the sum signal and difference signal from the hybrid circuit 123; and a receiving section 125 for IQ demodulating the sum signal or difference signal input from the switch 124 and outputting an I signal and Q signal whose phases are orthogonal to each other. The received signals from the two receiving antennas 121 and 122 are processed by the receiving section 125 of one series by switching by the switch 124. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
