CAJ | 학술논문

基于成像型紫外敏感器的自主导航是一种典型的天文导航方法,其精度不仅取决于敏感器的测量噪声,而且与系统性误差的大小密切相关.针对成像型紫外地球敏感器的特点,建立了紫外敏感器测量模型.为消除系统误差对自主导航精度的影响,提出了一种姿态机动辅助下的偏差自校准导航滤波方法,并以紫外地球敏感器测量偏差为例,设计了导航滤波算法.数学仿真和半物理仿真结果表明,该方法能显著地提高自主导航精度.
기우성상형자외민감기적자주도항시일충전형적천문도항방법,기정도불부취결우민감기적측량조성,이차여계통성오차적대소밀절상관.침대성상형자외지구민감기적특점,건립료자외민감기측량모형.위소제계통오차대자주도항정도적영향,제출료일충자태궤동보조하적편차자교준도항려파방법,병이자외지구민감기측량편차위례,설계료도항려파산법.수학방진화반물리방진결과표명,해방법능현저지제고자주도항정도.
The ultraviolet sensor based autonomous navigation is a classical celestial navigation method, and its performance is determined by the magnitude of measurement noise and systematic errors. In order to eliminate the negative effects of systematic errors on navigation accuracy, a self-calibration navigation algorithm aided with attitude maneuvering is proposed. The simulation results and hardware-in-the-loop test show that the proposed scheme could improve the navigation accuracy remarkably.