Improvement of the positioning accuracy of a software-based GPS receiver using a 32-bit embedded microprocessor

Authors:
G. Sato;T. Asai;T. Sakamoto;T. Hase
Affiliations:
Syst. LSI Dev. Center, Mitsubishi Electr. Corp.;-;-;-
Venue:
IEEE Transactions on Consumer Electronics
Year:
2000

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Cited 1

Position Estimation in Single-Frequency GPS Receivers Using Kalman Filter with Pseudo-Range and Carrier Phase Measurements

Wireless Personal Communications: An International Journal

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Abstract

This paper describes the improvement of the positioning accuracy of a GPS receiver, using software to apply the GPS to compact, hand-held devices. Differential GPS (DGPS) with a software FM demodulator, and a modified Kalman filter is proposed and applied to a GPS receiver. The positioning accuracy is, 35 m with a standalone GPS, 9 m with DGPS and 15 m with a Kalman filter. With both methods, the positioning accuracy is drastically improved to 2 m