Heading Estimation Method using GPS Information

Abstract

Recently, there are many researches about GPS application for agriculture in the world. In this paper, the heading estimation method, using GPS alone, was proposed. In the developed algorithm, the system doesn't use the steering angle information. First, to evaluate the accuracy of direct heading measurement by GPS, straight and curve traveling test was conducted. As a result, the direct measurement included noise and time delay. Therefore, the heading estimation method by auto regression model was developed to overcome these problems. Consequently, 30% of accuracy in the straight travel test and 50% of accuracy in the curve travel test were improved.