Adaptive Angle-Doppler Compensation Method for Airborne Bistatic Radar Based on PAST
The adaptive angle-Doppler compensation method adaptively extracts requisite information based on the data itself, thereby avoiding the problem of performance degradation due to inertial system error. However, this method requires the estimation and eigen decomposition of a sample covariance matrix,...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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China Science Publishing & Media Ltd. (CSPM)
2017-12-01
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| Series: | Leida xuebao |
| Subjects: | |
| Online Access: | http://radars.ie.ac.cn/fileup/HTML/R17053.htm |
| _version_ | 1797424522466426880 |
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| author | Zhao Jun Tian Bin Zhu Daiyin |
| author_facet | Zhao Jun Tian Bin Zhu Daiyin |
| author_sort | Zhao Jun |
| collection | DOAJ |
| description | The adaptive angle-Doppler compensation method adaptively extracts requisite information based on the data itself, thereby avoiding the problem of performance degradation due to inertial system error. However, this method requires the estimation and eigen decomposition of a sample covariance matrix, which has high computational complexity and limits its real-time application. In this paper, we investigate an adaptive angle-Doppler compensation method based on Projection Approximation Subspace Tracking (PAST). This method uses cyclic iterative processing to quickly estimate the positions of the spectral center of the maximum eigenvector in each range cell, thereby avoiding the computational burden of matrix estimation and eigen decompositon. Then, the spectral centers of all range cells are overlapped by two-dimensional compensation. Our simulation results demonstrate that the proposed method can effectively reduce the nonhomogeneity of airborne bistatic radar, with a performance is similar to that of eigen-decomposition algorithms, but with a reduced computational load and easy implementation. |
| first_indexed | 2024-03-09T08:03:27Z |
| format | Article |
| id | doaj.art-4d9d4ee66b014beeac041079e1951144 |
| institution | Directory Open Access Journal |
| issn | 2095-283X 2095-283X |
| language | English |
| last_indexed | 2024-03-09T08:03:27Z |
| publishDate | 2017-12-01 |
| publisher | China Science Publishing & Media Ltd. (CSPM) |
| record_format | Article |
| series | Leida xuebao |
| spelling | doaj.art-4d9d4ee66b014beeac041079e19511442023-12-03T00:34:21ZengChina Science Publishing & Media Ltd. (CSPM)Leida xuebao2095-283X2095-283X2017-12-016659460110.12000/JR17053Adaptive Angle-Doppler Compensation Method for Airborne Bistatic Radar Based on PASTZhao Jun0Tian Bin1Zhu Daiyin2①(College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China) ②(The First Aeronautical Institute of Air force, Xinyang 464000, China)③(Xi’an Electronic Engineering Research Institute, Xi’an 710100, China)①(College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China)The adaptive angle-Doppler compensation method adaptively extracts requisite information based on the data itself, thereby avoiding the problem of performance degradation due to inertial system error. However, this method requires the estimation and eigen decomposition of a sample covariance matrix, which has high computational complexity and limits its real-time application. In this paper, we investigate an adaptive angle-Doppler compensation method based on Projection Approximation Subspace Tracking (PAST). This method uses cyclic iterative processing to quickly estimate the positions of the spectral center of the maximum eigenvector in each range cell, thereby avoiding the computational burden of matrix estimation and eigen decompositon. Then, the spectral centers of all range cells are overlapped by two-dimensional compensation. Our simulation results demonstrate that the proposed method can effectively reduce the nonhomogeneity of airborne bistatic radar, with a performance is similar to that of eigen-decomposition algorithms, but with a reduced computational load and easy implementation.http://radars.ie.ac.cn/fileup/HTML/R17053.htmAirborne bistatic radarProjection Approximation Subspace Tracking (PAST)Adaptive angle-Doppler compensationSpace Time Adaptive Processing (STAP) |
| spellingShingle | Zhao Jun Tian Bin Zhu Daiyin Adaptive Angle-Doppler Compensation Method for Airborne Bistatic Radar Based on PAST Leida xuebao Airborne bistatic radar Projection Approximation Subspace Tracking (PAST) Adaptive angle-Doppler compensation Space Time Adaptive Processing (STAP) |
| title | Adaptive Angle-Doppler Compensation Method for Airborne Bistatic Radar Based on PAST |
| title_full | Adaptive Angle-Doppler Compensation Method for Airborne Bistatic Radar Based on PAST |
| title_fullStr | Adaptive Angle-Doppler Compensation Method for Airborne Bistatic Radar Based on PAST |
| title_full_unstemmed | Adaptive Angle-Doppler Compensation Method for Airborne Bistatic Radar Based on PAST |
| title_short | Adaptive Angle-Doppler Compensation Method for Airborne Bistatic Radar Based on PAST |
| title_sort | adaptive angle doppler compensation method for airborne bistatic radar based on past |
| topic | Airborne bistatic radar Projection Approximation Subspace Tracking (PAST) Adaptive angle-Doppler compensation Space Time Adaptive Processing (STAP) |
| url | http://radars.ie.ac.cn/fileup/HTML/R17053.htm |
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