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Digital signal processing approach of dithered RLG based on IFIR digital filter

  • Beihang University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

An interpolated finite impulse response (IFIR) digital filter approach was purposed to improve the demerits of traditional finite impulse response (FIR) digital filter in the case of noise attenuation for dithered Ring Laser Gyroscope (RLG). Concentrated on the time delay and computation complexity, a comparison of FIR and IIR digital filter was illustrated. By optimizing the stretch factor L, an IFIR digital filter was designed to reach the requirements of a typical RLG. The static experiment results show that the impulse number is decreased from 250 to below 0.15, attenuation of the dither noise is nearly 100 dB and group delay remains the same level by 11.25ms.

Original languageEnglish
Title of host publicationMaterials Science, Computer and Information Technology
PublisherTrans Tech Publications Ltd
Pages4195-4199
Number of pages5
ISBN (Print)9783038351733
DOIs
StatePublished - 2014
Event4th International Conference on Materials Science and Information Technology, MSIT 2014 - Tianjin, China
Duration: 14 Jun 201415 Jun 2014

Publication series

NameAdvanced Materials Research
Volume989-994
ISSN (Print)1022-6680
ISSN (Electronic)1662-8985

Conference

Conference4th International Conference on Materials Science and Information Technology, MSIT 2014
Country/TerritoryChina
CityTianjin
Period14/06/1415/06/14

Keywords

  • Digital signal processing
  • IFIR
  • Interpolated finite impulse response
  • RLG

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