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概述

之所以不使用对地航向(heading of motion)是因为对地航向(heading of motion)是相对于地面的航向,跟车辆前行/倒车没有关系,无法反映出前进、倒车的情况。

前进的时候,对地航向和车辆航向是一样的,没有区别。

倒车的时候,对地航向和车辆航向是相反的


例如,当车辆的车头朝北时:

前行状态:对地航向(heading of motion)和车辆航向(heading of vehicle)都是朝北的。

倒车状态:对地航向(heading of motion)朝南,而车辆航向(heading of vehicle)朝北的。

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