摘要 |
PURPOSE:To lower a ratio to be detected by disabling the passive sensor of a target, by reducing a transmission pulse according to the movements of the target while changing the transmission cycle of the transmission pulse at random. CONSTITUTION:A transmitter-receiver 2 transmits a transmission pulse to a target 1 from a transmitter 8 and inputs a reflected signal from the target 1 to output the same to a receiver 3. The transmitter 8, to which a tracking error signal 4 is inputted, automatically changes the interval of the transmission pulse so as to narrow the same. When the tracking error signal is large and to contrarily widen the same when the tracking error signal is small while changes the transmission cycle of the transmission pulse in random. The tracked position of the target 1 is outputted to a measuring calculator 6. |