Name
Abstract | ||
|---|---|---|
Synthetic aperture radar (SAR) systems have extensively contributed to diverse scientific applications in the recent past decades. For the next generation of top-level SAR systems, the multimodal operation of wide swath imaging, sliding spotlight, and highly sensitive ground moving target indication (GMTI) is becoming increasingly crucial. Following this concept, in this article, a novel airborne multiple-inputx2013;multiple-output (MIMO) SAR system, along with the spacex2013;time coding (STC) waveform scheme and the phased array, is developed to realize the multimodal operation. In particular, the airborne MIMO SAR system consists of two transmitters and four receivers. The signals of the multiple modes, which overlap in the frequency domain, are interpulse modulated and transmitted by different subarrays concomitantly. The superposed echoes are separated by range-Doppler filtering. Based on the separated echoes, we can obtain eight equivalent transceiver channels and, as a result, enhance the signal-to-noise ratio (SNR) for airborne multimodal operation. In the future, the STC waveform scheme and flight experiments of this novel airborne MIMO SAR system will be further investigated to reduce the pulse repeat frequency (PRF) for spaceborne multimodal operation. |
Year | DOI | Venue |
|---|---|---|
2022 | 10.1109/TGRS.2021.3066478 | IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING |
Keywords | DocType | Volume |
Synthetic aperture radar, MIMO communication, Imaging, Phased arrays, Geometry, Signal to noise ratio, Bandwidth, Airborne multiple-input-multiple-output (MIMO) synthetic aperture radar (SAR), multimodal operation, space-time coding (STC) waveform scheme | Journal | 60 |
ISSN | Citations | PageRank |
0196-2892 | 0 | 0.34 |
References | Authors | |
0 | 4 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Jie Wang | 1 | 3 | 1.38 |
| Xing-Dong Liang | 2 | 0 | 0.34 |
| Long-Yong Chen | 3 | 0 | 0.34 |
| Yan-lei Li | 4 | 5 | 5.54 |