Range Unambiguous Wide Swath Imaging with Frequency Diverse Array Scansar
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 a...
Saved in:
Published in | 2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS pp. 4755 - 4758 |
---|---|
Main Authors | , , , |
Format | Conference Proceeding |
Language | English |
Published |
IEEE
11.07.2021
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | 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. |
---|---|
ISSN: | 2153-7003 |
DOI: | 10.1109/IGARSS47720.2021.9554327 |