G - Physics
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G01S 3/00 (2006.01) G01S 13/42 (2006.01) G01S 13/74 (2006.01) G01S 13/76 (2006.01)
Patent
CA 1235216
ABSTRACT OF THE DISCLOSURE A radar system for finding the location of a second flying object from a first flying object, comprises a nondirectional antenna for radiating a first radio wave from the first flying object, a second nondirectional antenna provided on the second flying object to receive the first radio wave and to radiate a second radio wave generated by modulating the received first radio wave and an array antenna provided on the first flying object to receive the second radio wave. The respective amplitudes of the signals given by the antenna elements of the array antenna are compared individually with a specified level and an operation for determining the direction of arrival of the second radio wave is executed using the signals given by all the antenna elements when either of the amplitudes of the signals given by the antenna elements is greater than the specified level.
472125
Fujisaka Takahiko
Kirimoto Tetsuo
Kondo Michimasa
Mccarthy Tetrault Llp
Mitsubishi Denki Kabushiki Kaisha
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