针对某无人驾驶飞艇中安装罗盘吊舱的工作状态，提出适合于野外作业环境无外部航向基准时数字磁罗盘的自差校正方法。
This paper proposed a magnetic deviation calibration strategy suitable to implementing on spot for an unmanned airship without high-accuracy heading references.
到露天驾驶台把罗盘罩取下。
海洋自动驾驶仪接收，如罗盘从定向传感器的信号，并使用它们控制的自动导航掌舵。
The Marine autopilot receives signals from directional sensors such as the gyrocompass and USES them to automatically control the helm for navigation.
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