The research of digital close-loop depolarized FOG

Author

Xiaowu, Shu ; Cheng, Liu

Author_Institution

State Key Lab. of Modern Opt. Instrum., Zhejiang Univ., Hangzhou, China

Volume

2

fYear

2000

fDate

2000

Firstpage

1473

Abstract

The fiber-optic gyroscope (FOG) has been selected for the inertial navigation system (INS) function of the new airspace. We have completed the development of an intermediate grade closed-loop mode FOG (0.2 to 0.4 degree/h, 1 σ, 500 ppm, 1 σ) satisfying the environment requirement with the 500 meter mono-mode fiber, which is controlled exclusively by a high-speed digital signal processor (DSP). The control and compensation algorithms are implemented in the software and carried out by a single high speed DSP. The processor also takes care of the communication protocol via a parallel bus

Keywords

aerospace control; closed loop systems; compensation; digital instrumentation; fibre optic gyroscopes; inertial navigation; aerospace control; closed-loop mode; communication protocol; compensation; depolarisation; digital instrumentation; digital signal processor; fiber-optic gyroscope; inertial navigation system; mono-mode fiber; Digital signal processing; High speed optical techniques; Optical fiber communication; Optical fiber couplers; Optical fiber devices; Optical fiber polarization; Optical interferometry; Optical propagation; Optical sensors; Sagnac interferometers;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Control and Automation, 2000. Proceedings of the 3rd World Congress on

Conference_Location

Hefei

Print_ISBN

0-7803-5995-X

Type

conf

DOI

10.1109/WCICA.2000.863495

Filename

863495