SAR Observation Error Estimation Based on Maximum Relative Projection Matching
Joint Authors
Zhang, Y.
Wang, B. P.
Fang, Y.
Song, Z. X.
Source
International Journal of Antennas and Propagation
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-05-07
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
The existing sparse imaging observation error estimation methods are to usually estimate the error of each observation position by substituting the error parameters into the iterative reconstruction process, which has a huge calculation cost.
In this paper, by analysing the relationship between imaging results of single-observation sampling data and error parameters, a SAR observation error estimation method based on maximum relative projection matching is proposed.
First, the method estimates the precise position parameters of the reference position by the sparse reconstruction method of joint error parameters.
Second, a relative error estimation model is constructed based on the maximum correlation of base-space projection.
Finally, the accurate error parameters are estimated by the Broyden–Fletcher–Goldfarb–Shanno method.
Simulation and measured data of microwave anechoic chambers show that, compared to the existing methods, the proposed method has higher estimation accuracy, lower noise sensitivity, and higher computational efficiency.
American Psychological Association (APA)
Zhang, Y.& Wang, B. P.& Fang, Y.& Song, Z. X.. 2020. SAR Observation Error Estimation Based on Maximum Relative Projection Matching. International Journal of Antennas and Propagation،Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1168807
Modern Language Association (MLA)
Zhang, Y.…[et al.]. SAR Observation Error Estimation Based on Maximum Relative Projection Matching. International Journal of Antennas and Propagation No. 2020 (2020), pp.1-14.
https://search.emarefa.net/detail/BIM-1168807
American Medical Association (AMA)
Zhang, Y.& Wang, B. P.& Fang, Y.& Song, Z. X.. SAR Observation Error Estimation Based on Maximum Relative Projection Matching. International Journal of Antennas and Propagation. 2020. Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1168807
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1168807