| 摘要 |
PURPOSE:To stabilize the operation of a radar device, by a method wherein outputs from both a disturbing-wave receiver and a disturbing-frequency decoder are used to allow a disturbing frequency to be identified, and transmission and reception of the radar device at said frequency are automatically shunned. CONSTITUTION:The signal received by an antenna 1 reaches a radar receiver 3 and a disturbing-wave receiver 8 via a duplexer 2. The output from the disturbing-wave receiver 8 is inputted to a disturbing-frequency decoder 9, and a frequency including a disturbing-wave input is identified. The output from the disturbing-wave frequency decoder 9 is inputted to a matrix gate 10, and a simbol of a frequency that does not coincide with the disturbing wave frequency is registered in a register 13 for a transmitting frequency simbol. Said frequency simbol is transferred to a frequency switching unit 6 by a read-out command from the frequency switching unit 6, and a high-frequency oscillator of the corresponding frequency is selected for transmission. |
