Research on the Extremum Points of Range-surface and Dopplersurface for Bistatic SAR

Conference: EUSAR 2008 - 7th European Conference on Synthetic Aperture Radar
06/02/2008 - 06/05/2008 at Friedrichshafen, Germany

Proceedings: EUSAR 2008

Pages: 4Language: englishTyp: PDF

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Wang, Jingen; Jiang, Kai; Ge, Jialong; Wang, Yanyu; Zhang, Changyao (East China Research Institute of Electronic Engineering, P.R. China)
Wang, Jingen (Artillery Academy of P. L. A., P.R. China)

In the SAR system, some closed iso-range or iso-doppler contours in the area illuminated by the transmitter mean the ambiguity of some scattering points. In order to understand the closed properties of the iso-range or iso-doppler contours for bistatic SAR the paper studies the extremum points of range-surface and doppler-surface according to several mathematical models related to range and doppler. The formula for calculating the position of extremum point of range-surface has been given and several important conclusions about the stagnation or extremum points of doppler-surface have been drawn. Simulation results are provided and the theoretical analyses are validated.