Performance in a Jamming Environment of a Low-Cost GPS User Receiver Algorithm for Aiding a Tactical INS.
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OHIO SCHOOL OF ENGINEERING
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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
- Electrical and Electronic Equipment
- Radio Countermeasures