Performance in a Jamming Environment of a Low-Cost GPS User Receiver Algorithm for Aiding a Tactical INS.

Abstract

The design and evaluation of a position and velocity estimation algorithm for a low-cost Global Positioning System (GPS) user receiver is presented. The algorithm is intended as a navigation aid for a tactical aircraft. The algorithm is based on linearized range and range rate equations using the INS indicated position and velocity and the GPS user receiver's measured range and range rate. Hotelling's iterative matrix inversion algorithm is used to invert a (4 x 4) measurement matrix. A feedback and feedforward mechanization is proposed for the estimation algorithm. The performance is based on simulations using a dynamic F-4 flight profile. Comparisons are made with results obtained from a Carlson Square Root Filter and an unaided INS. (Author)

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1977
Accession Number
ADA055239

Entities

People

  • Stephen E. Cross

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Algorithms
  • Global Positioning Systems
  • Navigation
  • Navigational Equipment
  • Simulations
  • Simulators
  • Square Roots
  • Tactical Aircraft

Readers

  • Approximation Theory.
  • Positioning, Navigation, and Timing (PNT) Technology.
  • Robotics and Automation.

Technology Areas

  • Space