Waveform Optimization for Target Estimation by Cognitive Radar with Multiple Antennas
A new scheme based on Kalman filtering to optimize the waveforms of an adaptive multi-antenna radar system for target impulse response (TIR) estimation is presented. This work aims to improve the performance of TIR estimation by making use of the temporal correlation between successive received sign...
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| Format: | Article |
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MDPI AG
2018-05-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/18/6/1743 |
| _version_ | 1818040700145500160 |
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| author | Yu Yao Junhui Zhao Lenan Wu |
| author_facet | Yu Yao Junhui Zhao Lenan Wu |
| author_sort | Yu Yao |
| collection | DOAJ |
| description | A new scheme based on Kalman filtering to optimize the waveforms of an adaptive multi-antenna radar system for target impulse response (TIR) estimation is presented. This work aims to improve the performance of TIR estimation by making use of the temporal correlation between successive received signals, and minimize the mean square error (MSE) of TIR estimation. The waveform design approach is based upon constant learning from the target feature at the receiver. Under the multiple antennas scenario, a dynamic feedback loop control system is established to real-time monitor the change in the target features extracted form received signals. The transmitter adapts its transmitted waveform to suit the time-invariant environment. Finally, the simulation results show that, as compared with the waveform design method based on the MAP criterion, the proposed waveform design algorithm is able to improve the performance of TIR estimation for extended targets with multiple iterations, and has a relatively lower level of complexity. |
| first_indexed | 2024-12-10T08:18:41Z |
| format | Article |
| id | doaj.art-300b21c5b21b46c5bca588607042de0a |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-12-10T08:18:41Z |
| publishDate | 2018-05-01 |
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| series | Sensors |
| spelling | doaj.art-300b21c5b21b46c5bca588607042de0a2022-12-22T01:56:23ZengMDPI AGSensors1424-82202018-05-01186174310.3390/s18061743s18061743Waveform Optimization for Target Estimation by Cognitive Radar with Multiple AntennasYu Yao0Junhui Zhao1Lenan Wu2School of Information Engineering, East China Jiaotong University, Nanchang 330031, ChinaSchool of Information Engineering, East China Jiaotong University, Nanchang 330031, ChinaSchool of Information Science and Engineering, Southeast University, Nanjing 210096, ChinaA new scheme based on Kalman filtering to optimize the waveforms of an adaptive multi-antenna radar system for target impulse response (TIR) estimation is presented. This work aims to improve the performance of TIR estimation by making use of the temporal correlation between successive received signals, and minimize the mean square error (MSE) of TIR estimation. The waveform design approach is based upon constant learning from the target feature at the receiver. Under the multiple antennas scenario, a dynamic feedback loop control system is established to real-time monitor the change in the target features extracted form received signals. The transmitter adapts its transmitted waveform to suit the time-invariant environment. Finally, the simulation results show that, as compared with the waveform design method based on the MAP criterion, the proposed waveform design algorithm is able to improve the performance of TIR estimation for extended targets with multiple iterations, and has a relatively lower level of complexity.http://www.mdpi.com/1424-8220/18/6/1743cognitive radar systemKalman filteringtemporal correlated targetmultiple antennaswaveform optimization |
| spellingShingle | Yu Yao Junhui Zhao Lenan Wu Waveform Optimization for Target Estimation by Cognitive Radar with Multiple Antennas Sensors cognitive radar system Kalman filtering temporal correlated target multiple antennas waveform optimization |
| title | Waveform Optimization for Target Estimation by Cognitive Radar with Multiple Antennas |
| title_full | Waveform Optimization for Target Estimation by Cognitive Radar with Multiple Antennas |
| title_fullStr | Waveform Optimization for Target Estimation by Cognitive Radar with Multiple Antennas |
| title_full_unstemmed | Waveform Optimization for Target Estimation by Cognitive Radar with Multiple Antennas |
| title_short | Waveform Optimization for Target Estimation by Cognitive Radar with Multiple Antennas |
| title_sort | waveform optimization for target estimation by cognitive radar with multiple antennas |
| topic | cognitive radar system Kalman filtering temporal correlated target multiple antennas waveform optimization |
| url | http://www.mdpi.com/1424-8220/18/6/1743 |
| work_keys_str_mv | AT yuyao waveformoptimizationfortargetestimationbycognitiveradarwithmultipleantennas AT junhuizhao waveformoptimizationfortargetestimationbycognitiveradarwithmultipleantennas AT lenanwu waveformoptimizationfortargetestimationbycognitiveradarwithmultipleantennas |