Wu Yu-Feng, Sun Guang-Cai, Yang Jun, Xing Meng-Dao, Zhou Feng
In order to solve the contradiction between high-resolution and wide-swath for the spaceborne single-channel SAR system, this paper proposes a new method based on periodic non-uniform sampling. The method uses the non-uniform sampling to avoid the overlap of blind ranges, making the blind from the same range unit appears in one sampling channel mostly; The method uses the periodic sampling to construct the equivalent multi-channel data, and uses the multi-channel unambiguous reconstruction method to reconstruct the signals spectrum. The paper also analyzes the optimal design of non-uniform sampling method in detail. Finally, simulation results verify the effectiveness of the method.
W Yu-Feng, S Guang-Cai, Y Jun, X Meng-Dao, Z Feng - 电子与信息学报, 2012