基于LabVIEW的加速度计模型参数辨识模块设计

加速度计的模型参数辨识对研究加速度计动态特性具有重要作用.针对加速度计动态特性测试系统中加速度计模型参数辨识模块的设计,利用LabVIEW图形化编程的特点,以最小二乘原理为基础,通过对加速度计频域响应函数的拟合实现了加速度计模型参数的辨识,并构建了可视化软面板.实验测试表明:所设计模块能够实现加速度计模型参数辨识,有较高的参数辨识精度,并具有良好的人机交互,所辨识出的模型能够描述加速度计的动态特性.

Design of parameter identification module for accelerometer model based on LabVIEW

Accelerometer model parameter identification plays an important role in studying of accelerometer dynamic characteristics. Aiming at design of accelerometer model parameter identification module in accelerometer dynamic performance testing system,use LabVIEW graphical programming features,use the principle of least squares,through fitting accelerometer frequency response function to achieve identification of accelerometer model parameters,and construct a visual soft panel. Experimental tests show that the designed module can achieve accelerometer model parameter identification,it has high precision of parameter identification and good human-computer interaction,the identified model can describe dynamic characteristics of accelerometer.