Weak Target Detection within the Nonhomogeneous Ionospheric Clutter Background of HFSWR Based on STAP
Joint Authors
Zhang, Xin
Deng, Weibo
Yang, Qiang
Source
International Journal of Antennas and Propagation
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-10-08
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
High Frequency Surface Wave Radar (HFSWR) can perform the functions of ocean environment monitoring, target detection, and target tracking over the horizon.
However, its system's performance is always limited by the severe ionospheric clutter environment, especially by the nonhomogeneous component.
The nonhomogeneous ionospheric clutter generally can cover a few Doppler shift units and a few angle units.
Consequently, weak targets masked by the nonhomogeneous ionospheric clutter are difficult to be detected.
In this paper, a novel algorithm based on angle-Doppler joint eigenvector which considers the angle-Doppler map of radar echoes is adopted to analyze the characteristics of the nonhomogeneous ionospheric clutter.
Given the measured data set, we first investigate the correlation between the signal of interest (SOI) and the nonhomogeneous ionospheric clutter and then the correlation between the nonhomogeneous ionospheric clutters in different two ranges.
Finally, a new strategy of training data selection is proposed to improve the joint domain localised (JDL) algorithm.
Simulation results show that the improved-JDL algorithm is effective and the performance of weak target detection within nonhomogeneous ionospheric clutter is improved.
American Psychological Association (APA)
Zhang, Xin& Yang, Qiang& Deng, Weibo. 2013. Weak Target Detection within the Nonhomogeneous Ionospheric Clutter Background of HFSWR Based on STAP. International Journal of Antennas and Propagation،Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-467679
Modern Language Association (MLA)
Zhang, Xin…[et al.]. Weak Target Detection within the Nonhomogeneous Ionospheric Clutter Background of HFSWR Based on STAP. International Journal of Antennas and Propagation No. 2013 (2013), pp.1-11.
https://search.emarefa.net/detail/BIM-467679
American Medical Association (AMA)
Zhang, Xin& Yang, Qiang& Deng, Weibo. Weak Target Detection within the Nonhomogeneous Ionospheric Clutter Background of HFSWR Based on STAP. International Journal of Antennas and Propagation. 2013. Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-467679
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-467679