Frequency Estimation From Accelerometer Measurements

Abstract

Measurements from angular rate sensors and accelerometers allow inertial navigation. While this report focuses on accelerometers (since they are conceptually simpler), all the discussion is directly applicable to angular rate sensors. In fact, estimation techniques were developed to analyze angular rate sensors attached to a body subjected to sinusoidal motion. System developers need to be able to predict performance of a system, based on the component specifications supplied by the manufacturers and signal processing. Given knowledge of the noise level, the time correlation of the noise, the number of wavelengths processed, and the sampling rate, a model is proposed to predict the accuracy of the estimated parameters of a sinusoidal input. It is hoped that this model will allow the designer to quickly determine the required specifications for a particular application.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2000
Accession Number
ADA379787

Entities

People

  • Andrew A. Thompson

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Accuracy
  • Chi Square Test
  • Differential Equations
  • Equations
  • Estimators
  • Frequency
  • Inertial Navigation
  • Maximum Likelihood Estimation
  • Measurement
  • Military Research
  • Navigation
  • Random Variables
  • Random Walk
  • Signal Processing
  • Simulations
  • Standards

Fields of Study

  • Engineering

Readers

  • Control Systems Engineering.
  • Radar Systems Engineering.
  • Systems Analysis and Design