惯性导航系统通常由惯性测量装置、计算机、控制显示器等组成。惯性测量装置包括加速度计和陀螺仪,又称惯性导航组合。3个自由度陀螺仪用来测量飞行器的三个转动运动；3个加速度计用来测量飞行器的3个平移运动的加速度。计算机根据测得的加速度信号计算出飞行器的速度和位置数据。控制显示器显示各种导航参数-Inertial navigation system usually means from the inertial measurement, control, computer monitor etc.. Inertial measurement device comprises accelerometer and gyroscope, also called inertial navigation. 3 degree of freedom gyro is used to measure the vehicle three rotational motion　3 accelerometers used 3 translational motion measurement vehicle acceleration. The computer according to the acceleration signal measured to calculate the vehicle speed and position data. All kinds of navigation parameter control display