Spatial Spectrum-Based Imaging for UWB Through-the-Wall MIMO Arrays
Joint Authors
Sun, Xin
Zhao, Yang
Zhou, Zhimin
Lu, Biying
Source
International Journal of Antennas and Propagation
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-07-21
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
To keep the system complexity at a reasonable level and conform to the propagation demands, MIMO arrays are usually sparse in through-the-wall applications, which results in corrupted and gapped data.
The corresponding imaging results are seriously affected by the high-level sidelobes.
To solve this problem, a new imaging model for ultra-wideband (UWB) MIMO arrays is constructed via spatial spectrum theory in this paper.
Based on the model, the characteristics of the spatial spectrum for the MIMO array and its effects on imaging are discussed.
To improve the imaging quality, a through-the-wall imaging enhancement method is proposed via spatial spectrum estimation.
Synthetic and experimental results show that, unlike the conventional amplitude weighting methods and nonlinear techniques, the proposed method can efficiently suppress sidelobes in the imagery, especially for the sparse MIMO array, and consequently improve the target image quality without degrading the mainlobe resolution.
The proposed method has been successfully used in our real through-the-wall radar system.
American Psychological Association (APA)
Lu, Biying& Sun, Xin& Zhao, Yang& Zhou, Zhimin. 2014. Spatial Spectrum-Based Imaging for UWB Through-the-Wall MIMO Arrays. International Journal of Antennas and Propagation،Vol. 2014, no. 2014, pp.1-13.
https://search.emarefa.net/detail/BIM-1036230
Modern Language Association (MLA)
Lu, Biying…[et al.]. Spatial Spectrum-Based Imaging for UWB Through-the-Wall MIMO Arrays. International Journal of Antennas and Propagation No. 2014 (2014), pp.1-13.
https://search.emarefa.net/detail/BIM-1036230
American Medical Association (AMA)
Lu, Biying& Sun, Xin& Zhao, Yang& Zhou, Zhimin. Spatial Spectrum-Based Imaging for UWB Through-the-Wall MIMO Arrays. International Journal of Antennas and Propagation. 2014. Vol. 2014, no. 2014, pp.1-13.
https://search.emarefa.net/detail/BIM-1036230
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1036230