Velocity matched filtering/coherent integration of ultrawideband pulse trains

The development of optically activated semiconductor switches has advanced to the point where they are ready for implementation in radar systems. Extended detection range is possible when the switch is operated at high pulse repetition frequencies combined with integration of multiple pulse returns. Coherent integration of the returns from moving targets is described, based on real signal processing instead of analytic signal derivation, with velocity as the observable. The performance of this approach is quantified