Compass heading or compass course, before correction for magneticdeviation or magnetic variation.
罗盘航向或罗盘航线。未修正磁偏转或磁变。
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This paper proposed a magneticdeviation calibration strategy suitable to implementing on spot for an unmanned airship without high-accuracy heading references.
The carrier magnetic disturbance which make magneticdeviation of the navigation equipment and influence geomagnetic measurement precision has been a difficult problem at all times.