Attitude and Orbital Coupled Modeling and Micro-Doppler Characteristics Analysis of the Projectile with Initial Disturbances
Radar echo modeling based on dynamics and kinematics serves as the theoretical basis for micro-Doppler characteristic analysis and projectile parameter extractions. First, the initial disturbance of a projectile in the straight-line ballistic segment is analyzed. Based on the dynamic equation of the...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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China Science Publishing & Media Ltd. (CSPM)
2023-08-01
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| Series: | Leida xuebao |
| Subjects: | |
| Online Access: | https://radars.ac.cn/cn/article/doi/10.12000/JR23026 |
| _version_ | 1797422024324284416 |
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| author | Zhihua GONG Kaiming LI Pengwei DUAN Chunjiang CHEN |
| author_facet | Zhihua GONG Kaiming LI Pengwei DUAN Chunjiang CHEN |
| author_sort | Zhihua GONG |
| collection | DOAJ |
| description | Radar echo modeling based on dynamics and kinematics serves as the theoretical basis for micro-Doppler characteristic analysis and projectile parameter extractions. First, the initial disturbance of a projectile in the straight-line ballistic segment is analyzed. Based on the dynamic equation of the projectile, an angular motion model of the projectile characterized by two circular motion modes is established. Moreover, the motion definitions of projectile spin, nutation, and precession are explained. Subsequently, the parameterized characterization of the micro-Doppler signal produced by the angular motion of the projectile is derived. Furthermore, the mapping relationship between the angular motion of the projectile and the radar echo is obtained at the signal level. Taking high-speed spin projectile and a low-speed spin tail projectile as examples, when the angular motion of the two targets are affected by the initial disturbance, the radar echo signal model of the two targets is simulated and time-frequency analysis is carried out. The validity of the theoretical analysis and the model is verified by comparing the simulation results with the measured data of the projectile. Therefore, the micro-Doppler effect theory of projectile is enriched and verified through theoretical analysis, simulation modeling, and experimental verification. This study provides theoretical and technical support for the identification and analysis of projectile motion characteristics. |
| first_indexed | 2024-03-09T07:26:09Z |
| format | Article |
| id | doaj.art-665f99fa42fb4652b030ad8be0665e66 |
| institution | Directory Open Access Journal |
| issn | 2095-283X |
| language | English |
| last_indexed | 2024-03-09T07:26:09Z |
| publishDate | 2023-08-01 |
| publisher | China Science Publishing & Media Ltd. (CSPM) |
| record_format | Article |
| series | Leida xuebao |
| spelling | doaj.art-665f99fa42fb4652b030ad8be0665e662023-12-03T07:03:42ZengChina Science Publishing & Media Ltd. (CSPM)Leida xuebao2095-283X2023-08-0112479380310.12000/JR23026R23026Attitude and Orbital Coupled Modeling and Micro-Doppler Characteristics Analysis of the Projectile with Initial DisturbancesZhihua GONG0Kaiming LI1Pengwei DUAN2Chunjiang CHEN3Unit 63861 of PLA, Baicheng 137001, ChinaInstitute of Information and Navigation, Air Force Engineering University, Xi’an 710077, ChinaUnit 63861 of PLA, Baicheng 137001, ChinaUnit 63861 of PLA, Baicheng 137001, ChinaRadar echo modeling based on dynamics and kinematics serves as the theoretical basis for micro-Doppler characteristic analysis and projectile parameter extractions. First, the initial disturbance of a projectile in the straight-line ballistic segment is analyzed. Based on the dynamic equation of the projectile, an angular motion model of the projectile characterized by two circular motion modes is established. Moreover, the motion definitions of projectile spin, nutation, and precession are explained. Subsequently, the parameterized characterization of the micro-Doppler signal produced by the angular motion of the projectile is derived. Furthermore, the mapping relationship between the angular motion of the projectile and the radar echo is obtained at the signal level. Taking high-speed spin projectile and a low-speed spin tail projectile as examples, when the angular motion of the two targets are affected by the initial disturbance, the radar echo signal model of the two targets is simulated and time-frequency analysis is carried out. The validity of the theoretical analysis and the model is verified by comparing the simulation results with the measured data of the projectile. Therefore, the micro-Doppler effect theory of projectile is enriched and verified through theoretical analysis, simulation modeling, and experimental verification. This study provides theoretical and technical support for the identification and analysis of projectile motion characteristics.https://radars.ac.cn/cn/article/doi/10.12000/JR23026micro-motionmicro-dopplerinitial disturbancesangular motiontwo circular motion |
| spellingShingle | Zhihua GONG Kaiming LI Pengwei DUAN Chunjiang CHEN Attitude and Orbital Coupled Modeling and Micro-Doppler Characteristics Analysis of the Projectile with Initial Disturbances Leida xuebao micro-motion micro-doppler initial disturbances angular motion two circular motion |
| title | Attitude and Orbital Coupled Modeling and Micro-Doppler Characteristics Analysis of the Projectile with Initial Disturbances |
| title_full | Attitude and Orbital Coupled Modeling and Micro-Doppler Characteristics Analysis of the Projectile with Initial Disturbances |
| title_fullStr | Attitude and Orbital Coupled Modeling and Micro-Doppler Characteristics Analysis of the Projectile with Initial Disturbances |
| title_full_unstemmed | Attitude and Orbital Coupled Modeling and Micro-Doppler Characteristics Analysis of the Projectile with Initial Disturbances |
| title_short | Attitude and Orbital Coupled Modeling and Micro-Doppler Characteristics Analysis of the Projectile with Initial Disturbances |
| title_sort | attitude and orbital coupled modeling and micro doppler characteristics analysis of the projectile with initial disturbances |
| topic | micro-motion micro-doppler initial disturbances angular motion two circular motion |
| url | https://radars.ac.cn/cn/article/doi/10.12000/JR23026 |
| work_keys_str_mv | AT zhihuagong attitudeandorbitalcoupledmodelingandmicrodopplercharacteristicsanalysisoftheprojectilewithinitialdisturbances AT kaimingli attitudeandorbitalcoupledmodelingandmicrodopplercharacteristicsanalysisoftheprojectilewithinitialdisturbances AT pengweiduan attitudeandorbitalcoupledmodelingandmicrodopplercharacteristicsanalysisoftheprojectilewithinitialdisturbances AT chunjiangchen attitudeandorbitalcoupledmodelingandmicrodopplercharacteristicsanalysisoftheprojectilewithinitialdisturbances |