A novel hybrid scheme for the maneuver detection and estimation of a noncooperative space target was proposed in this study.The optical measurements,together with the range and range rate measurements from the ground-...A novel hybrid scheme for the maneuver detection and estimation of a noncooperative space target was proposed in this study.The optical measurements,together with the range and range rate measurements from the ground-based radars,were used in the tracking scenarios.In many tracking scenarios,radar resources for non-cooperative targets are constrained,particularly for near-earth targets,where multiple objects can only be tracked by a single radar at a time.This limitation hinders the accurate estimation of noncooperative target maneuvers,and can at times result in target loss.Existing literature has addressed this issue to some extent through various maneuvering target-tracking methods.To address this problem,a hybrid maneuver detection and estimation method that combines the input detection and estimation extended kalman filter and the weighted nonlinear least squares method is presented.Simulation results demonstrate that the proposed method outperforms the previous method,offering more accurate and efficient estimations.展开更多
Aiming to improve the maneuver performance of the strapdown inertial navigation attitude coning algorithm a new coning correction structure is constructed by adding a sample to the traditional compressed coning correc...Aiming to improve the maneuver performance of the strapdown inertial navigation attitude coning algorithm a new coning correction structure is constructed by adding a sample to the traditional compressed coning correction structure. According to the given definition of classical coning motion the residual coning correction error based on the new coning correction structure is derived. On the basis of the new structure the frequency Taylor series method is used for designing a coning correction structure coefficient and then a new coning algorithm is obtained.Two types of error models are defined for the coning algorithm performance evaluation under coning environments and maneuver environments respectively.Simulation results indicate that the maneuver accuracy of the new 4-sample coning algorithm is almost double that of the traditional compressed 4-sample coning algorithm. The new coning algorithm has an improved maneuver performance while maintaining coning performance compared to the traditional compressed coning algorithm.展开更多
基金supported by the National Natural Science Foundation of China(Grant No.U21B2050).
文摘A novel hybrid scheme for the maneuver detection and estimation of a noncooperative space target was proposed in this study.The optical measurements,together with the range and range rate measurements from the ground-based radars,were used in the tracking scenarios.In many tracking scenarios,radar resources for non-cooperative targets are constrained,particularly for near-earth targets,where multiple objects can only be tracked by a single radar at a time.This limitation hinders the accurate estimation of noncooperative target maneuvers,and can at times result in target loss.Existing literature has addressed this issue to some extent through various maneuvering target-tracking methods.To address this problem,a hybrid maneuver detection and estimation method that combines the input detection and estimation extended kalman filter and the weighted nonlinear least squares method is presented.Simulation results demonstrate that the proposed method outperforms the previous method,offering more accurate and efficient estimations.
基金The National Natural Science Foundation of China(No.51375087)the Specialized Research Fund for the Doctoral Program of Higher Education(No.20110092110039)+2 种基金the Public Science and Technology Research Funds Projects of Ocean(No.201205035)the Scientific Innovation Research of College Graduates in Jiangsu Province(No.CXZZ12_0097)the Scientific Research Foundation of Graduate School of Southeast University(No.YBJJ1349)
文摘Aiming to improve the maneuver performance of the strapdown inertial navigation attitude coning algorithm a new coning correction structure is constructed by adding a sample to the traditional compressed coning correction structure. According to the given definition of classical coning motion the residual coning correction error based on the new coning correction structure is derived. On the basis of the new structure the frequency Taylor series method is used for designing a coning correction structure coefficient and then a new coning algorithm is obtained.Two types of error models are defined for the coning algorithm performance evaluation under coning environments and maneuver environments respectively.Simulation results indicate that the maneuver accuracy of the new 4-sample coning algorithm is almost double that of the traditional compressed 4-sample coning algorithm. The new coning algorithm has an improved maneuver performance while maintaining coning performance compared to the traditional compressed coning algorithm.
