为了对受温度等外界环境影响下的 MEMS 惯性测量单元进行性能评估，针对经典 Allan 方差法不能反映各惯性器件的时变特性的缺陷，提出了采用动态 Allan 方差（DAVAR）法对 MEMS 陀螺仪和加速度计进行随机误差项的辨识和时变特性分析.(In　order　to　evaluate　the　performance　of　MEMS　inertial　measurement　devices　which　are　affected　by　external environment　such　as　temperature,　considering　that　the　classical　Allan　variance　method　can　not　reflect　the　time-varying
characteristics of each inertial device, this paper proposes dynamic Allan variance (DAVAR) method to recognize the random error term of MEMS gyroscopes and accelerometers, and analyze the time-varying characteristics of it.)