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Device and method for calibrating and improving the accuracy of barometric altimeters with GPS-derived altitudes
Device and method for calibrating and improving the accuracy of barometric altimeters with GPS-derived altitudes
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机译:用于校准和提高具有gps衍生的海拔高度的气压高度计的精度的装置和方法
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摘要
In a combined GPS/altimeter device, the calibration and hence the accuracy of barometric altimeter measurements are enhanced with the aid of derived altitudes from a GPS. The device determines the need for calibration and perform the subsequent computations necessary to facilitate the calibration. Furthermore, the device determines a correction quantity that should be applied to barometric altitude readings, thereby allowing the device to be calibrated while in motion. Both of these features ultimately result in a more accurate determination of altitude.
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