TEST AND EVALUATION OF GPS/DR APPLICATION FOR CAR NAVIGATION SYSTEM
Nanyang Technological University
KeywordsTest and Evaluation
Global Positioning System (GPS)
Dead Reckoning (DR)
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AbstractGlobal Positioning System (GPS) was analyzed in terms of its repeatable accuracy, UTM projection for 2D plane coordinate system, satellite visibility performance and the horizontal dilution of positioning (HDOP). The principle of Dead Reckoning together with body coordinate system transformation was introduced. The complementary performance of GPS and DR, and GPS/DR integration using gyroscope and accelerometer were given. Test results were demonstrated that the repeatable accuracy of GPS alone is about 10 meters in open air, and DR can provide continuous positioning output within sufficient accuracy when GPS signal is outage.
SponsorsInternational Foundation for Telemetering