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Downward-Looking Linear Array 3D SAR Imaging Based on Multiple Measurement Vectors Model and Continuous Compressive Sensing
Joint Authors
Liu, Qi-yong
Gu, Fu-fei
Chen, Yi-chang
Kang, Le
Qu, Xiao-yu
Zhang, Qun
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-04-05
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
This paper concerns the problems of huge data and off-grid effect of cross-track direction in downward-looking linear array (DLLA) 3D SAR imaging.
Since the 3D imaging needs a great deal of memory space, we consider the methods of downsampling to reduce the data quantity.
In the azimuth direction, we proposed a method based on the multiple measurement vectors (MMV) model, which can enhance computational efficiency and elevate the performance of antinoise, to recover the signal.
Further, in cross-track direction, since the resolution is restricted by the length of array, as well as platform size, the influence of off-grid effect is more serious than azimuth direction.
Continuous compressive sensing (CCS), which can solve the off-grid effect of the classical compressive sensing (CS), is presented to obtain the precise imaging result under the noise scenarios.
Finally, we validate our method by extension numerical experiments.
American Psychological Association (APA)
Liu, Qi-yong& Zhang, Qun& Gu, Fu-fei& Chen, Yi-chang& Kang, Le& Qu, Xiao-yu. 2017. Downward-Looking Linear Array 3D SAR Imaging Based on Multiple Measurement Vectors Model and Continuous Compressive Sensing. Journal of Sensors،Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1187144
Modern Language Association (MLA)
Liu, Qi-yong…[et al.]. Downward-Looking Linear Array 3D SAR Imaging Based on Multiple Measurement Vectors Model and Continuous Compressive Sensing. Journal of Sensors No. 2017 (2017), pp.1-11.
https://search.emarefa.net/detail/BIM-1187144
American Medical Association (AMA)
Liu, Qi-yong& Zhang, Qun& Gu, Fu-fei& Chen, Yi-chang& Kang, Le& Qu, Xiao-yu. Downward-Looking Linear Array 3D SAR Imaging Based on Multiple Measurement Vectors Model and Continuous Compressive Sensing. Journal of Sensors. 2017. Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1187144
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1187144