石英加速度计误差模型系数的递推最小二乘辨识方法研究

为探索在线辨识的测试方法,满足实时辨识的需要,本文提出采用递推最小二乘法辨识石英加速度计模型系数,并对其在重力场测试中的应用进行了研究.介绍了递推最小二乘系数估计法原理,为便于实际应用,根据测试领域的习惯,对递推最小二乘方法进行了梳理.以加速度计分度头试验为例,将该方法应用于加速度计重力场试验的误差模型系数辨识.仿真分...

Research on Recursive Least Squares Method for Identification of Quartz Accelerometers Error Model Coefficients

To exploit the test method of on-line identification, a recursive least squares(RLS) method is presented to identify quartz accelerometers error model coefficients in this paper, and the application of this method to the gravitational field test is researched to meet the needs of real-time identification. The principle of recursive least squares coefficient estimation is introduced. For practical applications, according to the habits of test areas, the method of recursive least squares is rearranged. The RLS parameter identification method is used in accelerometer test in gravitational field, for example, dividing head test. The simulation results show that the RLS algorithm is correct and efficient.