TOPSAR is an earth-imaging technique which can provide wide swath coverage. Its products have been widely applied in quantitative remote sensing applications such as ocean wind inversion and ocean current inversion. Depending on TOPSAR characteristics, this paper made several adaptive corrections to the expression of classical radar equation. Based on this, several radiation calibration methods for TOPSAR were proposed, and a complete processing flowchart was given. In the end, the effectiveness of the methods was verified by using the measured data of GF-3 TOPSAR test-mode.
YIN Di
,
HAN Bing
,
SUN Jili
,
ZHAO Liangbo
,
HONG Wen
,
HU Yuxin
. Calibration method to the impact of antenna scanning on TOPSAR[J]. Journal of University of Chinese Academy of Sciences, 2021
, 38(6)
: 791
-799
.
DOI: 10.7523/j.issn.2095-6134.2021.06.009
[1] De Zan F, Guarnieri A M. TOPSAR:terrain observation by progressive scans[J]. IEEE Transactions on Geoscience and Remote Sensing, 2006, 44(9):2352-2360.
[2] Yang W, Li C, Chen J, et al. A novel three-step focusing algorithm for TOPSAR image formation[J]. 2010 IEEE International Geoscience and Remote Sensing Symposium. July 25-30, 2010, Honolulu, HI, USA. IEEE, 2010:4087-4090.
[3] Nannini M, Prats-Iraola P, De Zan F, et al. TOPS time series performance assessment with TerraSAR-X data[J]. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2016, 9(8):3832-3848.
[4] Miranda N, Meadows P, Hajduch G, et al. The Sentinel-1A instrument and operational product performance status[C]//Proceedings of IGARSS 2015-2015 IEEE International Geoscience and Remote Sensing Symposium(IGARSS). July 26-31, 2015, Milan, Italy. IEEE, 2015:2824-2827.
[5] Wollstadt S, Prats P, Bachmann M, et al. Scalloping correction in TOPS imaging mode SAR data[J]. IEEE Geoscience and Remote Sensing Letters, 2012, 9(4):614-618.
[6] Raney R K, Freeman T, Hawkins R W, et al. A plea for radar brightness[C]//Proceedings of IGARSS'94-1994 IEEE International Geoscience and Remote Sensing Symposium. August 8-12, 1994, Pasadena, CA, USA. IEEE, 1994:1090-1092.
[7] Curlander J C, McDonough R N. Synthetic aperture radar:systems and signal processing[M]. New York:Wiley-Interscience, 1991.
[8] Raney R K. Considerations for SAR image quantification unique to orbital systems[J]. IEEE Transactions on Geoscience and Remote Sensing, 1991, 29(5):754-760.
[9] Balanis C A. Antenna theory, analysis, and design[M]. New York:Harper and Row, 1982.IEEE Antennas and Propagation Society Newsletter, 1982, 24(6):28-29.
[10] Sun J L, Yu W D, Deng Y K. The SAR payload design and performance for the GF-3 mission[J]. Sensors(Basel), 2017, 17(10):2419.
[11] Frulla L A, Milovich J A, Karszenbaum H, et al. Radiometric corrections and calibration of SAR images[C]//IGARSS 98. Sensing and Managing the Environment. 1998 IEEE International Geoscience and Remote Sensing. Symposium Proceedings. (Cat. No.98CH36174). July 6-10, 1998, Seattle, WA, USA. IEEE, 1998:1147-1149.
[12] Raney R K, Runge H, Bamler R, et al. Precision SAR processing using chirp scaling[J]. IEEE Transactions on Geoscience and Remote Sensing, 1994, 32(4):786-799.
[13] 吴越,李春升,王鹏波, 等. 天线波束指向控制对TOPSAR成像质量的影响[J]. 宇航学报,2012,33(4):487-491.
