Title :
Dynamic compensation of sensors based on improved recursive least squares algorithm
Author :
Yijiang Liu ; Shuanghong Liu ; Zhenzhen Qin ; Zhijie Zhang ; Lifan Meng
Author_Institution :
Meas. Lab., North Univ. of China, Taiyuan, China
Abstract :
In order to eliminate the sensor´s dynamic error, a method that improved recursive least squares method is proposed. Gradient descent method is used to generate the initial value of the filter parameters, then the recursive least squares method (RLS) algorithm is used to optimize the parameters. The algorithm is tested and verified on the matlab platform. The time-domain response and frequency domain response of the sensor are analyzed before and after compensation. The piezoelectric sensor CY_YD-205 is compensated. Engineering experiments show that the compensation filter designed by the improved recursive least squares algorithm can improve the dynamic characteristics of the sensor system.
Keywords :
compensation; gradient methods; least squares approximations; piezoelectric transducers; sensors; CY_YD-205; compensation filter; dynamic compensation; filter parameters; frequency domain response; gradient descent method; matlab platform; piezoelectric sensor; recursive least squares algorithm; sensors; time-domain response; Aerodynamics; Heuristic algorithms; Mathematical model; Sensor phenomena and characterization; Sensor systems; Time-domain analysis; dynamic characteristic; dynamic compensation; improved RLS algorithm; matlab; sensor;
Conference_Titel :
Mechatronics and Automation (ICMA), 2013 IEEE International Conference on
Conference_Location :
Takamatsu
Print_ISBN :
978-1-4673-5557-5
DOI :
10.1109/ICMA.2013.6617917
