In this paper, we derive a time-varying model for the steering vector of a phased array pulse Doppler radar system installed on a moving platform. Six oscillating motions are included in the derived model as well as the forward motion of the platform. We also present the sensitivity analysis of the derived model and analyze the effect of the perturbation between the true and measured array manifold on the accuracy of the motion compensation algorithm. From the simulation, it can be shown that the platform motions have no prominent effects on the target's power spectrum in moderate sea states (up to 3). However the barge's forward motion is a problem if the targets fall in the spreading spectral region of the sea clutter.
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Wang et al. (2005) studied this question.
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