FPGA implementation of VSCS-LMS algorithm for MEMS Gyroscope

Author

Yang Lan ; Zhao Xiang-mo ; Hui Fei ; Shi Xin

Author_Institution

Sch. of Inf. Eng., Chang´ an Univ., Xi´an, China

fYear

2012

fDate

29-31 Dec. 2012

Firstpage

1710

Lastpage

1714

Abstract

In order to improve the precision of attitude estimation system, paper presents a signal extraction method of MEMS Gyroscope called VSCS-LMS algorithm based on FPGA. The design is established with the S-shaped function of sigmoid to reduce the sensitivity to noise of LMS algorithm. And its FPGA-based system structure is synthesized and simulated on Virtex II FPGA by reusing the single-order filter unit to complement the multi-order accumulation. The signal extraction simulation of MEMS gyroscope shows that it is reliable, high precision and high degree of real-time.

Keywords

field programmable gate arrays; filters; gyroscopes; least mean squares methods; microsensors; reliability; MEMS gyroscope; S-shaped sigmoid function; VSCS-LMS Algorithm; Virtex II FPGA; attitude estimation system; field programmable gate array; least mean square algorithm; multiorder accumulation; reliability; signal extraction method; single-order filter; variance sigmoid control step algorithm; FPGA Implementation; LMS Algorithm; MEMS Gyroscopes; Signal Extraction;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Science and Network Technology (ICCSNT), 2012 2nd International Conference on

Conference_Location

Changchun

Print_ISBN

978-1-4673-2963-7

Type

conf

DOI

10.1109/ICCSNT.2012.6526250

Filename

6526250