Spatial Data Management System

Abstract

The measurement axes of virtually all multaxis laser Doppler velocimeter (LDV) systems are nonorthogonal to some degree and are, in general, rotated with respect to orthogonal, Cartesian reference axes. Systematic errors are introduced into the LDV data if axis nonorthogonality and spatial orientation parameters are not properly taken into account by the data reduction equations. This report develops the general 3-space expressions for velocity vector magnitude and spatial orientation in terms of rotated, oblique LDV measurement axis parameters and the velocity vector projections measured by each of these axes.

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Document Details

Document Type
Technical Report
Publication Date
Nov 30, 1979
Accession Number
ADA072700

Entities

People

  • Christopher F. Herot
  • David Kramlich
  • John W Thompson
  • Mark Friedell
  • Richard Carling

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Boundaries
  • Computers
  • Contracts
  • Data Management
  • Data Reduction
  • Database Management Systems
  • Databases
  • External Stores
  • Grids
  • Hash Tables
  • Hierarchies
  • Language
  • Orientation (Direction)
  • Qualifications
  • Relational Databases
  • Standards
  • United States Government

Readers

  • Computer Vision.
  • Control Systems Engineering.
  • Fluid Dynamics.

Technology Areas

  • Directed Energy
  • Space
  • Space - Spacecraft Maneuvers