Passive synthetic aperture radar imaging with piecewise constant Doppler algorithm

Publication Type:
Conference Proceeding
Citation:
2017 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications, APWC 2017, 2017, 2017-January pp. 41 - 44
Issue Date:
2017-10-06
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© 2017 IEEE. This paper presents a non-cooperative space-surface bistatic synthetic aperture radar (SS-BSAR) with a novel image reconstruction algorithm. Exploiting the continuous wave signal from the transmitters of opportunity, the new algorithm produces better imaging performance. Unlike the conventional passive SAR, the image reconstruction is achieved by correlation in time-domain without distinction between fast time and slow time. With the movement of the radar, the range curve can be linearized within multiple segments. In each segment, the Doppler frequency shift incurred in the reflected signal from a target can be assumed to be constant and thus the SAR image can be reconstructed recursively. The proposed piecewise constant Doppler (PCD) algorithm is validated by the simulation results.
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