IN-MOTION ALIGNMENT OF THE INERTIAL PLATFORM UTILIZING A STRONG GRAVITATIONAL FIELD,

Abstract

In this analysis the concept of an ideal linear sensor unit (acceleration sensing device) is used to show how to compute the angular velocity of an ideal platform which obeys leveling and compassing constraints. Some simplification of computation is obtained by the proper choice of an ideal platform (true) coordinate frame and by assuming that the platform is near the earth. The computed angular velocity is used to drive the actual platform. When the linear sensor unit on the platform is used to supply the computer inputs, it is shown that the platform oscillates in the manner of a Schuler-tuned pendulum. To control the errors in alignment externally derived quantities are introduced in feedback loops. The results of the analysis provide error block diagrams of leveling and compassing. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 25, 1961
Accession Number
AD0677808

Entities

People

  • R. E. L. Farmer

Organizations

  • General Dynamics

Tags

DTIC Thesaurus Topics

  • Computations
  • Computers
  • Feedback
  • Gravitational Fields
  • Leveling
  • Motion
  • Pendulums
  • Physical Properties
  • Platforms
  • Stabilized Platforms

Fields of Study

  • Engineering

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Inertial Navigation Systems.
  • Theoretical Analysis.