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For airborne ISAR imaging of ship targets at sea, both ship's three-dimensional rotation driven by waves in the sea surface and the relative tangential translational motion between the platform and the ship contribute to the imaging. At high sea-state and in long-range and low-altitude observation, the rotation component produced by the relative tangential motion between the radar and the ship is...
Motion compensation in inverse synthetic aperture radar (ISAR) usually consists of two parts: range alignment and phase compensation. In this paper, the rank one phase estimation (ROPE) algorithm is applied to the ISAR phase compensation. Its blind setting of zero Doppler frequency at the start is avoided greatly by circular shifting the poorly focused strongest scatterer in each range bin to the...
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