利用反卷积改善非线性传感器的性能

介绍一种适用于非线性系统的反卷积算法.通过计算机仿真,一阶系统恢复信号相对平方误差在1%以内,相对阻尼系数为0.57~0.8的二阶系统恢复信号的相对平方误差在2%以内,可改善非线性系统的线性度和动态性能.通过振动测量实验验证,得到了较好的效果.该算法简单,在低频系统中可实时运行.

Improving Performance of Nonlinear Transducer by Using Deconvolution

This paper presents a deconvolution algorithm for nonlinear system. The rel-ative quadratic error of restored signal is less then 2% for second system with dampercoefficient 0.57~0. 8. This algorithm can correct system's nonlinearity and improve dy-namic performance. It's advantage is simplicity. It can implement to real-time with amicroprocessor for low frequency system. We have applied the algorithm to vibrationmeasurement and a good results are otained.