捷联式惯性导航也就是将惯性测量元件（陀螺仪和加速度计）直接装在飞行器、舰艇、导弹等需要诸如姿态、速度、航向等导航信息的主体上，用计算机把测量信号变换为导航参数的一种导航技术-Strapdown inertial navigation and inertial measuring element is (gyroscope and accelerometer) directly on the aircraft, warships, missiles and other needs such as posture, speed, heading on the body of the navigation information, using computer to measure signal transformation is a navigation technology of navigation paramet