Accuracy enhancement of inertial sensors utilizing high resolution spectral analysis

Aboelmagd Noureldin, Justin Armstrong, Ahmed El-Shafie, Tashfeen Karamat, Don McGaughey, Michael Korenberg, Aini Hussain

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

In both military and civilian applications, the inertial navigation system (INS) and the global positioning system (GPS) are two complementary technologies that can be integrated to provide reliable positioning and navigation information for land vehicles. The accuracy enhancement of INS sensors and the integration of INS with GPS are the subjects of widespread research. Wavelet de-noising of INS sensors has had limited success in removing the long-term (low-frequency) inertial sensor errors. The primary objective of this research is to develop a novel inertial sensor accuracy enhancement technique that can remove both short-term and long-term error components from inertial sensor measurements prior to INS mechanization and INS/GPS integration. A high resolution spectral analysis technique called the fast orthogonal search (FOS) algorithm is used to accurately model the low frequency range of the spectrum, which includes the vehicle motion dynamics and inertial sensor errors. FOS models the spectral components with the most energy first and uses an adaptive threshold to stop adding frequency terms when fitting a term does not reduce the mean squared error more than fitting white noise. The proposed method was developed, tested and validated through road test experiments involving both low-end tactical grade and low cost MEMS-based inertial systems. The results demonstrate that in most cases the position accuracy during GPS outages using FOS de-noised data is superior to the position accuracy using wavelet de-noising.

Original languageEnglish
Pages (from-to)11638-11660
Number of pages23
JournalSensors (Switzerland)
Volume12
Issue number9
DOIs
Publication statusPublished - Sep 2012

Fingerprint

inertial navigation
Geographic Information Systems
Inertial navigation systems
Spectrum analysis
spectrum analysis
Global Positioning System
Systems Integration
Global positioning system
augmentation
high resolution
sensors
Sensors
Micro-Electrical-Mechanical Systems
vehicles
mechanization
Research
low frequencies
systems integration
Mechanization
White noise

Keywords

  • FOS
  • INS/GPS
  • Navigation system
  • Spectral analysis

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics
  • Analytical Chemistry
  • Biochemistry

Cite this

Noureldin, A., Armstrong, J., El-Shafie, A., Karamat, T., McGaughey, D., Korenberg, M., & Hussain, A. (2012). Accuracy enhancement of inertial sensors utilizing high resolution spectral analysis. Sensors (Switzerland), 12(9), 11638-11660. https://doi.org/10.3390/s120911638

Accuracy enhancement of inertial sensors utilizing high resolution spectral analysis. / Noureldin, Aboelmagd; Armstrong, Justin; El-Shafie, Ahmed; Karamat, Tashfeen; McGaughey, Don; Korenberg, Michael; Hussain, Aini.

In: Sensors (Switzerland), Vol. 12, No. 9, 09.2012, p. 11638-11660.

Research output: Contribution to journalArticle

Noureldin, A, Armstrong, J, El-Shafie, A, Karamat, T, McGaughey, D, Korenberg, M & Hussain, A 2012, 'Accuracy enhancement of inertial sensors utilizing high resolution spectral analysis', Sensors (Switzerland), vol. 12, no. 9, pp. 11638-11660. https://doi.org/10.3390/s120911638
Noureldin A, Armstrong J, El-Shafie A, Karamat T, McGaughey D, Korenberg M et al. Accuracy enhancement of inertial sensors utilizing high resolution spectral analysis. Sensors (Switzerland). 2012 Sep;12(9):11638-11660. https://doi.org/10.3390/s120911638
Noureldin, Aboelmagd ; Armstrong, Justin ; El-Shafie, Ahmed ; Karamat, Tashfeen ; McGaughey, Don ; Korenberg, Michael ; Hussain, Aini. / Accuracy enhancement of inertial sensors utilizing high resolution spectral analysis. In: Sensors (Switzerland). 2012 ; Vol. 12, No. 9. pp. 11638-11660.
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