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惯导系统和罗兰 C 组合可以提供完全自主、误差不随时间增长的导航系统,尤其适用于精确制导武器和军用飞机的导航与飞行控制。建立了 INS/罗兰 C组合系统的卡尔曼滤波器的状态和测量方程,并进行了详细的协方差分析,仿真结果表明:采用陀螺漂移为0.02(°)/h,加速度计偏置为1*10~(-4)g 等级的平台式惯导与标准罗兰 C 导航组合,位置精度为395m,速度精度为0.6m/s;与先进的具有自动ASF 修正的数字罗兰 C 接收机组合,位置精度可达195m,速度精度可达0.35m/s,而且系统对一些惯性器件误差具有估计与校正作用。
The inertial navigation system and the Roland C combination provide a completely autonomous navigation system that does not increase with time, especially for navigation and flight control of precision-guided weapons and military aircraft. The state and measurement equation of Kalman filter of INS / Roland C combined system are established and a detailed covariance analysis is carried out. The simulation results show that the gyro drift is 0.02 (°) / h, the bias of accelerometer is 1 * 10 ~ (-4) g level of platform-type inertial navigation and standard Roland C navigation combination of position accuracy of 395m, speed accuracy of 0.6m / s; and advanced with automatic ASF modified digital Roland C receiver combination of position accuracy Up to 195m, speed accuracy up to 0.35m / s, and the system for some inertial device error estimation and correction.