Abstract: For a maneuvering target, the Doppler of scatterers take the form of LFM signals after movement compensation. Superresolution methods are based on the models of both the signal and the noise. In this paper, we extend the Relax algorithm to the case of LFM signals and apply it to monopulse three-dimensional imaging. Simulation results shows that the images thus formed are superior to those formed by the traditional dechirping method.

Key words: superresolution, maneuvering target, monopulse rader, three dimensional imaging