| 摘要 |
PURPOSE:To detect securely a traveling body by a simple circuit constitution by making it easy to detect the turning direction of the vector of a received signal by detecting digitally signal obtained by combining several phase signals with logic values. CONSTITUTION:This detector is equipped with radio transmitter 2, reflected signal receiver 3, transmitter driving originating unit 1, mixers 4a and 4b which mix oscillation outputs differing in phase from a received signal, detection amplifiers 5a and 5b, logic converter circuit 6 which generates a time series of outputs corresponding to combinations of detection outputs ''1'' and ''0'', and circuit 7 which detects a traveling body by detecting the turning direction of vector OB of the received signal from the sequence of logic conversion output signals. Then, circuit 7 generates analog signals with levels corresponding to logic coversion output signals to generate a step-shaped signal. |
