利用对称性，提出了一种自校正方法。
分析并应用了关风提前量计算和关风提前量计算方法中的参数的自校正方法。本文最后叙述了现场试验中遇到的问题和系统需要改进的地方。
This paper introduces the method to calculate the advance to close the solenoid valve and the adjusted method to adjust the parameter in the method to calculate the advance.
另一方面实现了速度综合的自校正，这种校正方法能适应各种不同规律的液体媒介的声速变化。
One hand, it extends the ultrasonic measure to dynamic; On the other hand it can roundly correct velocity in all kinds of liquid medium.
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.
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.
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