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Three-dimensional analysis of relationship between relative orientation and motion modes
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作者 Fan Shijie Fan Hongqi +2 位作者 Xiao Huaitie Fan Jianpeng Fu Qiang 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2014年第6期1495-1504,共10页
Target motion modes have a close relationship with the relative orientation of missile-totarget in three-dimensional highly maneuvering target interception. From the perspective of relationship between the sensor coor... Target motion modes have a close relationship with the relative orientation of missile-totarget in three-dimensional highly maneuvering target interception. From the perspective of relationship between the sensor coordinate system and the target body coordinate system, a basic model of sensor is stated and the definition of relative angular velocity between the two coordinate systems is introduced firstly. Then, the three-dimensional analytic expressions of relative angular velocity for different motion modes are derived and simplified by analyzing the influences of target centroid motion, rotation around centroid and relative motion. Finally, the relationships of the relative angular velocity directions and values with motion modes are discussed. Simulation results validate the rationality of the theoretical analysis. It is demonstrated that there are significant differences of the relative orientation in different motion modes which include luxuriant information about motion modes. The conclusions are significant for the research of motion mode identification,maneuver detection, maneuvering target tracking and interception using target signatures. 展开更多
关键词 Attitude analysis Coordinate system Motion mode Relative angular velocity Sensor Terminal guidance
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