An Equivalent Range Model Based on Time Resampling for High- Speed Maneuvering Platform SAR
Abstract— For the high-speed maneuvering platform SAR, the high-speed state will lead to stop-go
assumption invalid and the forward acceleration would severely reduce the depth of focusing field in azimuth,
thus the traditional range model with stop-go assumption will be ineffective. In this paper, the accurate range
history is derived in a geometric configuration for high-speed maneuvering platform SAR and a new range
equation is derived by transformation of bistatic to monostatic survey. Based on the new range equation, the
azimuth time resampling is proposed by which one can obtain a simplified range equation with a form similar
to that of the conventional SAR case. Then the typical imaging methods can be applied directly without any
modification. Simulation results verify the effectiveness of the proposed method.
Index Terms— high-speed maneuvering platform, azimuth time resampling, range equation, synthetic aperture radar (SAR)
Anyi Wang, Xiaoyang Jiao, Ping Guo
College of Communication and Information Engineering, Xi'an University of Science and Technology, CHINA
National Laboratory of Radar Signal Processing, Xidian University, CHINA
Cite: Anyi Wang, Xiaoyang Jiao, Ping Guo, Chunhui Lin, "An Equivalent Range Model Based on Time Resampling for High- Speed Maneuvering Platform SAR," Proceedings of 2019 the 9th International Workshop on Computer Science and Engineering, pp. 462-467, Hong Kong, 15-17 June, 2019.