一种新型微惯性测量组合捷联惯导系统的研究

The research of new micro-inertial measurement unit inertial navigation system

在大动态环境下,测量载体的角速度的陀螺仪已经很难满足陀螺仪量程的要求。本文针对具有大角速度和大角加速度的短时飞行的动态载体,利用加速度计的输出公式和惯性器件的测量值,解算出载体质心的线加速度和角速度;根据微惯性测量组合捷联惯导系统原理设计了微惯性测量组合的安装方案并且论证了该组合方案的优越性;通过MATLAB软件对该方案经行了仿真,结果表明该方案有效提高了系统精度。

In the high-dynamic range environment,the gyroscope range can＇t meet the requirement for measuring the angular velocity of vehicle.For the dynamic carrier with short flight,large angular velocity and large angular acceleration,the calculating formula for line acceleration and angular velocity are calculated according to the accelerometer＇s output formula and inertial measurement device;The program of micro inertial measurement unit is designed according to micro inertial measurement unit principle of strapdown inertial navigation system and the superiority of the program is demonstrated;the MATLAB software is used for this program,with the new program the precision of the system is improved effectively.