Range Unambiguous Wide Swath Imaging with Frequency Diverse Array Scansar
2021
Range ambiguity is a serious problem existing in the wide swath SAR imaging due to the impact of high pulse repetition frequency. To address this problem, this paper proposes a new imaging configuration via using the frequency diverse array (FDA) antenna. By designing the frequency increment along array elements and adopting the sub-array technique, FDA can easily allocate its beam to the corresponding unambiguous block, which outperforms the conventional methods. The FDA generated range-dependent phase shift can be used to extract the signal from different range block, accomplishing range unambiguous focusing. Simulation results are provided to demonstrate the effectiveness of the proposed approach.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
11
References
0
Citations
NaN
KQI