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The sub-aperture range-doppler imaging algorithms for bistatic SAR of arbitrary mode

In the bistatic synthetic aperture radar systerm, the Doppler frequency is determined by both transmitter and receiver motion. The bistatic SAR has many advantages on the military affairs, but it also pays the price for system and imaging complexity. The bistatic SAR of arbitary mode lies more smart, thus more complex. The paper establishes the geometry coordinates ,derives doppler parameters of the signal on this mode. A new imaging algorithm is proposed in this paper based on the solution of range equation and Doppler equation. The validity of the algorithm is validated by simulated point target and scatter cell array.