A RF Small Pulse Signal Processing Circuit Based-on SCM

This paper presents a RF pulse signal processing circuit based on SCM(single chip microcomputer). The pulse is high-frequency-modulated, low-amplitude and narrow-time-width. The circuit could process the pulse when its width r > 0.4 mus , duty-cycle D< 1/2000, and amplitude P ges 2mv (after demodulated). By designing the time on which the SCM answers an interruption, the circuit could eliminate disturbance between two pulses efficiently,. Experiments have proved that the system is effective, credible and economical.