An External Calibration Method for Compensating for the Mutual Coupling Effect in Large Interferometric Aperture Synthesis Radiometers
Joint Authors
Dong, Jian
Chen, Ke
Shi, Ronghua
Lei, Wentai
Li, Qingxia
Source
International Journal of Antennas and Propagation
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-09-25
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
This paper deals with the antenna mutual coupling effect in interferometric aperture synthesis radiometers (IASRs), which degrades the system radiometric performance.
First, the conventional mutual impedance (CMI) is adopted to analyze the mutual coupling effect on the performance of IASR and a practical model of the coupled visibilities is developed.
Based on the model, an external calibration method is then proposed to compensate for the mutual coupling effect.
In this method, the measured visibilities are decoupled through the difference measurement between the original scene and a naturally occurring reference scene.
Compared to the previous methods, the proposed method requires no extra additional hardware cost and has easier implementation and, therefore, fits for the large interferometric array radiometers.
Experimental results validate the effectiveness of the proposed method.
American Psychological Association (APA)
Dong, Jian& Shi, Ronghua& Chen, Ke& Li, Qingxia& Lei, Wentai. 2011. An External Calibration Method for Compensating for the Mutual Coupling Effect in Large Interferometric Aperture Synthesis Radiometers. International Journal of Antennas and Propagation،Vol. 2011, no. 2011, pp.1-8.
https://search.emarefa.net/detail/BIM-509646
Modern Language Association (MLA)
Dong, Jian…[et al.]. An External Calibration Method for Compensating for the Mutual Coupling Effect in Large Interferometric Aperture Synthesis Radiometers. International Journal of Antennas and Propagation No. 2011 (2011), pp.1-8.
https://search.emarefa.net/detail/BIM-509646
American Medical Association (AMA)
Dong, Jian& Shi, Ronghua& Chen, Ke& Li, Qingxia& Lei, Wentai. An External Calibration Method for Compensating for the Mutual Coupling Effect in Large Interferometric Aperture Synthesis Radiometers. International Journal of Antennas and Propagation. 2011. Vol. 2011, no. 2011, pp.1-8.
https://search.emarefa.net/detail/BIM-509646
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-509646