论文部分内容阅读
采用“速度+姿态”量测匹配法设计了机载武器传递对准系统,建立了系统的动态误差模型和量测模型,并在这些模型的基础上设计了卡尔曼滤波器.介绍了基于可观测性矩阵奇异值分解的分段定常系统(PWCS,Piece-Wise Constant System)可观测性分析法,并通过该方法分析了机载武器传递对准系统各个状态变量的可观测性.在可观测性分析的基础上忽略不可观测状态变量,实现系统滤波器降维.设计了摇摆机动,在该机动基础上对降维前后滤波器性能和传递对准精度进行了对比,证明了可观测性分析的必要性和正确性.
The airborne weapon transfer alignment system was designed using the “speed + attitude” measurement matching method, the dynamic error model and the measurement model of the system were established, and the Kalman filter was designed based on these models. The observability analysis method based on Piece-Wise Constant System (PWCS) based on singular value decomposition of observability matrix and the observability of each state variable of airborne weapon transfer alignment system are analyzed. Based on the observability analysis, we ignore the unobservable state variables and reduce the dimensionality of the system filter. The swing maneuver is designed. The performance of the filter before and after the reduction is compared with the transfer alignment accuracy. It is proved that the observable Necessity and correctness of sexual analysis.