用坐标反算ab方向的坐标方位角。
通过教学实践总结提炼出一种简便、实用的坐标方位角计算公式。
A sort of simple and convenient, practical computation formula of coordinate azimuth is abstracted and summarized by teaching practice.
根据应变与位移的关系，推导任一坐标方位角方向的地倾斜或地倾斜率与应变或应变率分量的关系。
Then based on displacement and strain, the formula of determining crust strain-rate tensors from vertical deformation measurements is derived.
根据道路设计信息，推导出线路坐标系下任意中桩点的坐标计算公式和横断面方位角，由计算得到的横断面方向指导野外GPS断面测量。
Based on road design information, we derived coordinates of arbitrary points in the pile and cross-sectional azimuth which may guide global positioning system (GPS) surveying in section surveys.
在目标跟踪领域，通过三坐标雷达的测量值(斜距、仰角及方位角)来估算目标的真实高度一直是个难点。
In target tracking domain estimating the true altitude of a target from 3-d radar is always been a challenge.
结合附合导线平差过程，文中用真误差分析方法推导了起始方位角误差对附合导线平差结果的影响公式；通过分析与数据计算，得到了起始方位角误差对平差后导线点坐标和导线边方位角的影响规律；
By its adjustment procedure, the effect formula of initial-bearing's error on adjustments of a straight and equal-side connecting traverse are introduced with the method of true error analysis.
结合附合导线平差过程，文中用真误差分析方法推导了起始方位角误差对附合导线平差结果的影响公式；通过分析与数据计算，得到了起始方位角误差对平差后导线点坐标和导线边方位角的影响规律；
By its adjustment procedure, the effect formula of initial-bearing's error on adjustments of a straight and equal-side connecting traverse are introduced with the method of true error analysis.
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