论文部分内容阅读
为验证北斗导航定位系统与微机电系统(MEMS)在探空火箭定位中的性能,在建立某型号探空火箭动力学模型的基础上,根据北斗导航系统和捷联惯性导航系统(SINS)的基本原理,在STK和Matlab/Simulink上构建了北斗星座与MEMS联合仿真模型。分别完成了对探空火箭的北斗导航和捷联惯性导航,并引入卡尔曼滤波器完成了对探空火箭的SINS/北斗组合导航。结果表明,在所使用的硬件和算法的前提下,北斗导航以及组合导航的定位精度分别达到了3.78m与2.88m,可以满足探空火箭实际工程需要。
In order to verify the performance of Beidou Navigation and Positioning System (MEMS) and microelectromechanical systems (MEMS) in sounding rocket positioning, based on the establishment of a certain sounding rocket kinetic model and according to the Beidou Navigation System and the SINS The basic principle is that a joint simulation model of Beidou constellation and MEMS is built on STK and Matlab / Simulink. Respectively completed the Beidou navigation and strapdown inertial navigation of the sounding rockets, and introduced the Kalman filter to complete the SINS / BeiDou navigation of the sounding rocket. The results show that under the premise of the hardware and algorithm used, the positioning accuracy of Beidou navigation and integrated navigation are up to 3.78m and 2.88m, respectively, which can meet the needs of sounding rocket engineering.