Interrupt CW approach for IF video signal real-time simulating and its validity

To determine the feasibility and practicability of interrupt continuous wave (CW) approach proposed for real-time simulating radar intermediate frequency(IF) video signal, the theoretical analysis and computer simulation were performed. It was proved that phases at two linked points between the end and beginning of adjoined frames are always consistent, and the bias Doppler frequency for the time delay of A/D sampling start is equivalent to that for target acceleration. No digital phase compensation is required when frames are linked. It has been shown that the interrupt CW approach has apparently practical values.