Abstract:

Long time integration is an effective way to detect low observable targets by making use of the target energy during a period of time to improve the SNR and increase the coverage of the radar at the same time.But a long integration time causes range migration,Doppler spread or some other issues.The existing compensation algorithm has large amount of calculation and fails to keep the balance of performance and computational complexity.This paper presents a method of coherent integration in segment followed by noncoherent integration between segments.It has a good detection performance with lower amount of computation.Tests on hardware show that this algorithm can be efficiently and conveniently applied to engineering implementation.

Key words: low observable target;long time integration;hardware implementation