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配置方案是现有无陀螺捷联惯导系统研究中的薄弱环节,缺乏系统的设计理论和方法.从加速度计的输出方程着手,推导出角速度解算误差和加速度计测量误差之间的关系方程,其中配置方案参数为方程参量.以角速度解算误差最小化为原则,采用混沌粒子群算法,利用某型导弹的飞行数据得到了最优的六加速度计配置方案.针对其不易安装的缺点,通过参数设定,仿真得到了易于实现的次优配置方案.仿真结果表明其角速度解算误差接近于最优配置方案,明显优于国外经典的Cub-type方案.
The configuration scheme is a weak link in the research of gyroscope-free SINS and lacks systematic design theory and method.According to the output equation of the accelerometer, the relationship between the angular velocity solution error and the accelerometer measurement error is deduced , And the parameters of the configuration scheme are the equation parameters.Using the chaos particle swarm optimization algorithm and the flight data of a missile, the optimal six-accelerometer configuration scheme is obtained by the principle of minimizing the error of solution to the angular velocity.Aiming at the defect that it is not easy to install, Through the parameter setting, the suboptimal configuration scheme is obtained, which is easy to implement.The simulation results show that the error of angular velocity solution is close to the optimal configuration scheme, which is obviously superior to the classical Cub-type scheme abroad.