1991-10-01

Evaluation of Location System Combining a GPS Receiver with Inertial Sensor 912809

Of primary importance in Vehicle Navigation systems is the accurate determination of location. Through use of distance sensor, optical-fiber gyroscope, Map-Matching technique, and GPS receiver to reduce accumulated errors, we are improving location accuracy.
The model we demonstrated in our March 1991 field test showed good results on three courses of the 10 recommended by the Public Works Research Institute - (10km in an urban area, and 20 and 50km in the suburbs). Additionally, our model displayed two superior strengths: neither the initial location or direction of a vehicle needs to be set; and conventional map data (not 100% accurate) may be utilized.
This paper describes the results of our experimental demonstration and how to combine a GPS receiver and inertial sensor.

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