A Dynamic Compensation Unit of Sensor Based on DSP and IIR
Zhang Hai-lon · Chuangan jishu xuebao · 2013
The situation happens constantly in transient signal testing,that dynamic characteristics of sensor cannot meet demand. In this paper,A novel method is proposed to improve sensor dynamic characteristics which is by means of least square method( LSM) to process dynamic calibrating data,then using this data to identify the parameters of IIR filter. and finally designing inverse modeling of sensor. A compensation device is designed based on DSP.The method is parameters of off-line identification is stored in compensation device and the output sequence of sensor is modified on line using compensation device. Experiments show that the dynamic characteristics of intelligent sensor combined compensation device and sensor significantly better than that of sensor itself.