It can be seen from the figure that, in the presence of noise, there is a large deviation between the path calculated by odometer model and the real path. In the figure, the green line segment represents the robot path under the fusion of EKF algorithm, and the blue line segment represents the robot path under the fusion of UKF algorithm. The robot motion path obtained by the two fusion algorithms is consistent with the real path. It can be seen from the figure that the path obtained by the fusion algorithm based on UKF is more accurate than that obtained by the fusion algorithm based on EKF. The specific positioning errors of the two algorithms are shown in Figure 34.<br>
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