Positioning by Fifth and Sixth Wheels

Abstract

The positioning trials by 5th and 6th wheels were carried out on grassland. The grassland roughness is made up of high and low frequency. The picken up waves by 5th and 6th wheels have not the same wave form and phase, and the diffrence of distance between 5th and 6th wheels arised at straight run. To resolve this problem, following processes were taken. 1, Smoothing was done in the high frequency part. 2, Revision was done in the diffrence of distance due to the wave form and phase diffrence. As the results, the positioning error was 1-3m at the run within 600m.