数据类型对SINS中导航算法计算精度的影响分析

Data type and Its Influence on the Computational Precision of Navigation Algorithm in SINS

本文用仿真的方法研究数据类型对 SINS导航算法计算精度的影响。文中首先提出了一种对 SINS进行仿真研究的思路 ;接着采用四元数姿态算法 ,设计了不同数据类型时 SINS的导航算法并针对载体作摇摆运动的情况进行了仿真运算 ;

This paper studies the influence of data type on the computational precision of navigation algorithm in SINS by simulation. Firstly, A new method of simulation in SINS is illuminated. As examples, attitude algorithm based on quaternion is simulated in the use of different data types under the condition of swaying motion. The analytic results are discussed and the corresponding conclusions are given.