Improved polarimetric SAR calibration algorithm considering channel noise

被引：0
|
作者：
Zhang H. [1 ]
Li Z. [1 ]
Li J. [1 ]
Fang C. [1 ]
机构：
[1] National Key Lab. of Radar Signal Processing, Xidian Univ., Xi'an
来源：
| 1600年 / Science Press卷 / 43期
关键词：
Ainsworth algorithm; Polarimetric calibration; Polarimetric SAR;
D O I：
10.3969/j.issn.1001-2400.2016.06.008
中图分类号：
学科分类号：
摘要：
It is necessary to calibrate polarimetric SAR (Synthetic Aperture Radar) data in order to use the data for scientific applications. The present Ainsworth algorithm does not consider the cross-polarization channel noise in estimating the cross-polarization imbalance parameter and therefore the estimation of this parameter is not robust. To solve the above problem, an improved Ainsworth algorithm is presented, which takes the cross-polarization channel noise into consideration. This algorithm can preserve a high performance under the situations of difference cross-polarization channel noise powers and a low signal noise ratio. Experimental results based on simulated and real data confirm the effectiveness of the improved algorithm. © 2016, The Editorial Board of Journal of Xidian University. All right reserved.
引用
收藏
页码：45 / 50
页数：5
相关论文
共 12 条
  • [1] Liu L., Wang R., Jiao L., Et al., Combined Similarity Based Spectral Clustering Ensemble for POLSAR Classification, Journal of Xidian University, 42, 3, pp. 48-53, (2015)
  • [2] Lu H., Li D., Liu H., Et al., Forest Parameters Retrieval with Dual-baseline Polarimetric SAR Interferometry Based on Clustering Analysis, Journal of Xidian University, 42, 6, pp. 23-29, (2015)
  • [3] Villa A., Iannini L., Giudici D., Et al., Calibration of SAR Polarimetric Images by Means of a Covariance Matching Approach, IEEE Transactions on Geoscience and Remote Sensing, 53, 2, pp. 674-686, (2015)
  • [4] Van Zyl J.J., Calibration of Polarimetric Radar Images Using Only Image Parameters and Trihedral Corner Reflector Responses, IEEE Transactions on Geoscience and Remote Sensing, 28, 3, pp. 337-348, (1990)
  • [5] Quegan S., A Unified Algorithm for Phase and Cross-talk Calibration of Polarimetric Data-theory and Observations, IEEE Transactions on Geoscience and Remote Sensing, 32, 1, pp. 89-99, (1994)
  • [6] Ainsworth T.L., Ferro-Famil L., Lee J.S., Orientation Angle Preserving a Posteriori Polarimetric SAR Calibration, IEEE Transactions on Geoscience and Remote Sensing, 44, 4, pp. 994-1003, (2006)
  • [7] Zhang H., Lu W., Zhang B., Et al., Improvement of Polarimetric SAR Calibration Based on the Ainsworth Algorithm for Chinese Airborne PolSAR Data, IEEE Geoscience and Remote Sensing Letters, 10, 4, pp. 898-902, (2013)
  • [8] Shi L., Yang J., Li P., Co-polarization Channel Imbalance Determination by the Use of Bare Soil, ISPRS Journal of Photogrammetry and Remote Sensing, 95, pp. 53-67, (2014)
  • [9] Fischer J., Baumgartner S.V., Reigber A., Et al., Geometric, Radiometric, Polarimetric and Along-track Interferometric Calibration of the New F-SAR System of DLR in X-band, 2008 7th European Conference on Synthetic Aperture Radar, pp. 1-4, (2008)
  • [10] Fore A.G., Chapman B.D., Hawkins B.P., Et al., UAVSAR Polarimetric Calibration, IEEE Transactions on Geoscience and Remote Sensing, 53, 6, pp. 3481-3491, (2015)
12