KT-SRAF-LVD-Based Signal Coherent Integration Method for High-Speed Target Detecting in Airborne Radar
In the application of an airborne radar platform, the rapid relative motion between target and airborne radar induces range migration (RM) and Doppler frequency migration (DFM). The motion errors caused by airflow, air friction, and navigation inaccuracies will exacerbate the RM and DFM problems and...
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MDPI AG
2025-03-01
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| Online Access: | https://www.mdpi.com/1424-8220/25/7/2128 |
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| author | Wenwen Xu Yuhang Wang Jianyin Cao Hao Wang |
| author_facet | Wenwen Xu Yuhang Wang Jianyin Cao Hao Wang |
| author_sort | Wenwen Xu |
| collection | DOAJ |
| description | In the application of an airborne radar platform, the rapid relative motion between target and airborne radar induces range migration (RM) and Doppler frequency migration (DFM). The motion errors caused by airflow, air friction, and navigation inaccuracies will exacerbate the RM and DFM problems and render traditional coherent integration methods ineffective. Previously reported airborne coherent integration methods are hindered by high computational complexity, limiting their practical application. Therefore, developing motion error compensation and coherent integration methods with reduced computational complexity and a high detection performance is of critical importance. To address these challenges, a novel method based on the keystone transform, sequence-reversing autocorrelation function, and Lv’s distribution (KT-SRAF-LVD) is proposed. Simulation results demonstrate that the proposed method achieves a good balance between computational complexity and detection performance, indicating great potential for practical engineering applications. |
| format | Article |
| id | doaj-art-65e5be2cf3ee4847b152a85439d3598e |
| institution | OA Journals |
| issn | 1424-8220 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-65e5be2cf3ee4847b152a85439d3598e2025-08-20T02:09:17ZengMDPI AGSensors1424-82202025-03-01257212810.3390/s25072128KT-SRAF-LVD-Based Signal Coherent Integration Method for High-Speed Target Detecting in Airborne RadarWenwen Xu0Yuhang Wang1Jianyin Cao2Hao Wang3School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaSchool of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaSchool of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaSchool of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaIn the application of an airborne radar platform, the rapid relative motion between target and airborne radar induces range migration (RM) and Doppler frequency migration (DFM). The motion errors caused by airflow, air friction, and navigation inaccuracies will exacerbate the RM and DFM problems and render traditional coherent integration methods ineffective. Previously reported airborne coherent integration methods are hindered by high computational complexity, limiting their practical application. Therefore, developing motion error compensation and coherent integration methods with reduced computational complexity and a high detection performance is of critical importance. To address these challenges, a novel method based on the keystone transform, sequence-reversing autocorrelation function, and Lv’s distribution (KT-SRAF-LVD) is proposed. Simulation results demonstrate that the proposed method achieves a good balance between computational complexity and detection performance, indicating great potential for practical engineering applications.https://www.mdpi.com/1424-8220/25/7/2128high-speed targetmotion errorrange migrationDoppler frequency migrationlong-term coherent integration |
| spellingShingle | Wenwen Xu Yuhang Wang Jianyin Cao Hao Wang KT-SRAF-LVD-Based Signal Coherent Integration Method for High-Speed Target Detecting in Airborne Radar Sensors high-speed target motion error range migration Doppler frequency migration long-term coherent integration |
| title | KT-SRAF-LVD-Based Signal Coherent Integration Method for High-Speed Target Detecting in Airborne Radar |
| title_full | KT-SRAF-LVD-Based Signal Coherent Integration Method for High-Speed Target Detecting in Airborne Radar |
| title_fullStr | KT-SRAF-LVD-Based Signal Coherent Integration Method for High-Speed Target Detecting in Airborne Radar |
| title_full_unstemmed | KT-SRAF-LVD-Based Signal Coherent Integration Method for High-Speed Target Detecting in Airborne Radar |
| title_short | KT-SRAF-LVD-Based Signal Coherent Integration Method for High-Speed Target Detecting in Airborne Radar |
| title_sort | kt sraf lvd based signal coherent integration method for high speed target detecting in airborne radar |
| topic | high-speed target motion error range migration Doppler frequency migration long-term coherent integration |
| url | https://www.mdpi.com/1424-8220/25/7/2128 |
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