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针对惯性导航系统随时间误差积累的特性,设计了一种基于VC++的SINS/GNSS组合导航的仿真系统。根据飞控模块模拟飞机实际飞行轨迹,从而产生惯性测量器件的真值数据。利用Visual Studio2005完成捷联惯导实时解算和全球导航定位系统仿真,完成输出校正,从而实现组合导航系统的动态数字化仿真。程序结果表明组合导航系统可以克服惯性导航系统随时间误差积累的特性,导航参数误差不随时间漂移,可以用于长时间导航。
Aiming at the characteristics of inertial navigation system with time error accumulation, a simulation system of SINS / GNSS integrated navigation based on VC ++ was designed. According to the flight control module to simulate the actual flight path of the aircraft, so as to generate the true value data of the inertial measurement device. Visual Studio2005 completed SINS real-time solution and global navigation system simulation, complete the output correction, so as to achieve dynamic digital simulation of integrated navigation system. The program results show that the integrated navigation system can overcome the inertial navigation system with the characteristics of time error accumulation, navigation parameter error does not drift with time, can be used for long navigation.