激光捷联惯导仿真系统的设计与实现

针对激光捷联惯性导航系统可靠性高，采用自然散热以及使用维护方便等优点，设计并实现了激光捷联惯导仿真系统。首先通过软件的动态协同算法，设计软件陀螺仪和软件加速度计，使其能够仿真真实激光陀螺仪和真实加速度计的姿态信息和线运动信息；然后仿真载体的飞行轨迹，并将飞行姿态及运动状态转换为软件陀螺仪和软件加速度计的输出；最后根据其输出信息与理想轨迹对应参数的对比进行性能分析。仿真结果表明，该系统不仅能够较好地模拟飞机的实际飞行状态，更能有效地检验激光捷联惯导算法的精确性和可靠性。

Design and implementation of simulation system for laser SINS

For laser strapdown inertial navigation system has the advantages of high reliability,natural cooling,conve-nient operation and easy maintenance,the laser strapdown inertial navigation simulation system was implemented.The software gyroscope and accelerometer were designed with the dynamic collaborative algorithm of software to simulate real laser gyroscope and true accelerometer′s attitude information and linear moving information,and then simulate the carrier′s flight path,convert the flight attitude and motion state into software gyroscope and software accelerometer′s output.According to the output information and ideal track,the corresponding performance parameters are analyzed.The simulation results show that the system can not only simulate the actual flying state,but also effectively verify the accuracy and reliability of the laser strapdown inertial navigation algorithm.