Accession Number:

ADA055239

Title:

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

Descriptive Note:

Master's thesis,

Corporate Author:

AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING

Personal Author(s):

Report Date:

1977-12-01

Pagination or Media Count:

133.0

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 receivers measured range and range rate. Hotellings 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

Subject Categories:

  • Electrical and Electronic Equipment
  • Radio Countermeasures

Distribution Statement:

APPROVED FOR PUBLIC RELEASE