The error ellipse of joints in circular tunnel is deeply discussed.
对圆曲线贯通误差进行了深入的探讨。
To solve problems with error quadrilateral method is more objective and reasonable than with error ellipse method under same conditions.
分析了在同等条件下，用误差四边形解决问题比用误差椭圆等方法更客观，合理。
Moreover, there is still a large error area of probability ellipse, which makes the precise location cannot available.
而是存在一个不小的概率椭圆误差区域，因而无法精确确定被测目标的真实位置。
This paper makes use of the elliptical parameter equation, present a generation algorithm of ellipse with division Angle increments, and makes error analysis.
利用椭圆的参数方程，给出了以等分角度为增量的绘椭圆的一种算法，并分析了算法的误差。
The simulation results show that the tracking error of middle-convex and varying ellipse piston linear servo drive system can be reduced effectively by this method.
仿真结果表明，采用这种控制策略可以十分有效地减小中凸变椭圆活塞直线伺服驱动系统的跟踪误差。
Lastly, we analyze the reasons of magnetic heading's error and the compensation methods. What's more, we experiment to validate the ellipse hypothesis compensation method.
最后，分析了磁航向误差产生的原因以及补偿方法，并用实验对椭圆假设补偿方法进行了验证。
Algorithm for error coefficients and compensation method is studied based on the ellipse hypothesis.
研究了基于椭圆假设求解误差系数算法和误差补偿方法。
Algorithm for error coefficients and compensation method is studied based on the ellipse hypothesis.
研究了基于椭圆假设求解误差系数算法和误差补偿方法。
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