Analysis and Correction of the Rank-Deficient Error for 2-D Mirrored Aperture Synthesis

In two-dimensional mirrored aperture synthesis (2-D MAS), the rank of the transformation matrix can affect the accuracy of the solved cosine visibilities; therefore, it has an impact on the accuracy of the reconstructed brightness temperature image. In this article, the influence of the rank deficient on the accuracy of the reconstructed brightness temperature image of 2-D MAS is discussed. An analysis of the rank-deficient error is performed by computing its impact on the radiometric accuracy for a reference scene. Two correction methods based on multiple measurements are proposed to correct the rank-deficient error. The simulations and experiments are carried out to demonstrate the effectiveness of the proposed methods.

[1]  Kumar Vaibhav Srivastava,et al.  Polarization-Insensitive Single- and Broadband Switchable Absorber/Reflector and Its Realization Using a Novel Biasing Technique , 2016, IEEE Transactions on Antennas and Propagation.

[2]  Qingxia Li,et al.  A Hybrid Calibration Method for Aperture Synthesis Radiometers , 2016, IEEE Geoscience and Remote Sensing Letters.

[3]  Qingxia Li,et al.  One-Dimensional Mirrored Interferometric Aperture Synthesis , 2010, IEEE Geoscience and Remote Sensing Letters.

[4]  Jian Dong,et al.  An On-Board External Calibration Method for Aperture Synthesis Radiometer by Rotation , 2012, IEEE Geoscience and Remote Sensing Letters.

[5]  Adriano Camps,et al.  Impact of receiver errors on the radiometric resolution of large two‐dimensional aperture synthesis radiometers , 1997 .

[6]  Yuhao Wang,et al.  The Maximum Rank of the Transfer Matrix in 1-D Mirrored Interferometric Aperture Synthesis , 2017, IEEE Geoscience and Remote Sensing Letters.

[7]  Xiaoyun Zhang,et al.  Two-dimensional mirrored interferometric aperture synthesis , 2012, ISAPE2012.

[8]  Sungjoon Lim,et al.  Electronically switchable metasurface for absorption and reflection modes , 2014, 2014 IEEE Antennas and Propagation Society International Symposium (APSURSI).

[9]  Sungjoon Lim,et al.  Active metasurface for controlling reflection and absorption properties , 2014 .

[10]  Qingxia Li,et al.  One-Dimensional Mirrored Interferometric Aperture Synthesis: Performances, Simulation, and Experiments , 2013, IEEE Transactions on Geoscience and Remote Sensing.

[11]  Camps Carmona,et al.  Aplication of Interferometric Radiometry to Earth Observation , 1996 .

[12]  Qingxia Li,et al.  Initial Results of Microwave Radiometric Imaging With Mirrored Aperture Synthesis , 2019, IEEE Transactions on Geoscience and Remote Sensing.

[13]  Adriano Camps,et al.  Impact of antenna errors on the radiometric accuracy of large aperture synthesis radiometers , 1997 .