中文说明：导航定位中的姿态计算是利用姿态动力学计算运动物体速度和位置的一个很好的工具。它提供了一个很好的模拟定位的身体非常接近现实生活的情况。并计算了误差。
English Description：
Attitude calculation in navigation systems and positioning is a nice tool to calculate the velocity and position of a moving body with the help of attitude dynamics of this code. It gives a nice simulation for the positioning of the body very close to the real life situation. And the errors are also calculated.