Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6951643 | Digital Signal Processing | 2018 | 8 Pages |
Abstract
Based on a two-dimensional phase coding, a novel range ambiguity suppression technique is proposed in this paper. By transmitting two-dimensional phase coded signals, the two-dimensional spectrum of the range ambiguous signals will be shifted along both range and azimuth directions compared with that of desired signals. Then, part of the two-dimensional spectrum of the range ambiguous signals will be located outside the two-dimensional spectral support, which is known in priori, of the desired signals. Considering the range frequency and Doppler oversamplings, a filter corresponding to the two-dimensional spectral support of the desired signals is applied, which suppresses the range ambiguity. Simulation results of both point targets and distributed targets validate the effectiveness of the proposed method.
Keywords
Related Topics
Physical Sciences and Engineering
Computer Science
Signal Processing
Authors
Jian Li, Guang-Cai Sun, Xiang-Gen Xia, Liang Guo, Guo-Bin Jing, Meng-Dao Xing, Zheng Bao,