Assessing the Feasibility of Accelerometer-Only Inertial Measurement Units for Artillery Projectiles

Abstract

Inertial navigation systems estimate velocity and position information from measurements made with inertial instruments. Most often such systems have included accelerometers and gyroscopes. It has been shown analytically that it is possible to obtain the information necessary to determine both linear accelerations and angular motions using only measurements from linear accelerometers. An accelerometer-only inertial measurement unit would be an attractive candidate for use on artillery projectiles due to the availability of high-g miniature accelerometers. After including coding to compute acceleration forces at arbitrary locations on the projectile, a computerized trajectory model was used to evaluate the abilities of various configurations of linear accelerometers and processing algorithms to accurately estimate the components of the projectiles' linear and angular motion. Projectile guidance, Inertial measurement units, Accelerometers.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1994
Accession Number
ADA286386

Entities

People

  • Thomas E. Harkins

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accelerometers
  • Algorithms
  • Angular Acceleration
  • Angular Motion
  • Artillery
  • Coordinate Systems
  • Guidance
  • Gyroscopes
  • Inertial Measurement Units
  • Inertial Navigation
  • Inertial Navigation Systems
  • Measurement
  • Military Research
  • Navigation
  • Projectiles
  • Signal Processing
  • Trajectories

Fields of Study

  • Physics

Readers

  • Control Systems Engineering.
  • Inertial Navigation Systems.
  • ballistics.