比较分析了两种捕获段水平面轨迹:切线轨迹和弧线轨迹。分别给出了两种轨迹的数学模型以及航程计算公式。
Two kind of horizontal plane trajectories of the Acquisition Phase (AP), Tangential Trajectory and Arc Trajectory, are discussed and predictors of ground track range are given, respectively.
如果我们将太阳在天空中的一年内运转轨迹描出,这将是另一个循环,这平面就是整个太阳系的黄道。
If we plot the position of the sun around the sky in a year, it will mark out a different circle in the sky which is the plane of the ecliptic of the solar system.
当我们把一个物体,放到引力场中,我们会得到在一个平面上的轨迹。
When we throw up an object in a gravitational field, you have the trajectory in a plane.
当然,可由此从行星地球的天空中辨认太阳的运行轨迹,黄道平面在北半球夏季七月的天空中的位置很低。
Of course, defined by the path of the Sun through planet Earth's sky, the ecliptic plane rides low during July nights in the northern hemisphere's summer skies.
我们现在所作所为的轨迹,导致的全球暖化,足够把我们带到最后一次间冰期的海平面上升水平。
The warming we're on track to do now is more than enough to commit us to last-interglacial levels of sea-level rise.
推导了斜筋斗计算公式,并计算分析了其速度、高度特性,及轨迹平面倾斜角、过载对斜筋斗的影响,计算结果与理论分析一致。
Its dynamic characteristics involved with speed and altitude, the influence of the inclined Angle of the trajectory plane and load on it are also calculated and analyzed in this paper.
提出了平面四杆机构综合(包括函数综合、轨迹综合和导引综合等三类基本问题)的数值比较法。
The numerical comparison method is presented for planar four-bar linkage synthesis including function synthesis, path synthesis and guidance synthesis.
论述了数控磨削平面凸轮的误差分析和曲线插值计算,并讨论了砂轮的刀位轨迹的生成。
In the paper the curve interpolating calculation AD error analysis for CNC grinding of plane CAM are discussed, and the tool - path generation is also analyzed.
平面四连杆机构的运动轨迹分析是《机械设计》课堂教学中的主要内容之一。
Movement trail analysis of the plane four links mechanism is one of the major contents in the teaching of the machinery devise curriculum.
落叶松肋骨架是建筑的主要承重部分,它们遵循着椭圆形平面的轨迹,垂直于建筑立面。
Larch ribs forms the buildings' skeletons. They follow the line of the enclosures' oval floors, perpendicular to the facade.
介绍一种图解和解析法相结合的统一的作平面连杆运动规律和运动轨迹的设计方法。
The paper introduces a kind of designing method of connecting rod motion law and motion locus, which combines a diagram with analytic method.
然后用相平面法分析滑块的运动规律,并确定爬行运动的相轨迹——极限环。
Then the slider motion is analyzed by the state-plane method. A limit circle which can describe the path of the creeping motion is found out.
对平面二自由度五杆机构的位姿形式及位置逆解进行分析之后,提出了用二自由度辅助机构进行全铰链五杆轨迹机构综合的方法。
A method that USES two degrees of freedom (DOF) auxiliary mechanisms to path synthesize a five-bar mechanism was presented after analyzing the posts and inverted solutions of the five-bar mechanism.
第五,根据目标运动轨迹,通过数学推导得出目标在线阵平面内做直线运动时的瞬时波达方向表达式。
Fifth, we derive the mathematical equation of the instantaneous DOA, when the target moving in line and in the same plane as ULA.
本文介绍一种用平移实轴平面搜索法求根轨迹的计算机方法。
In this paper a computer method for searching the root loci by moving real axis parallelly in the complex plane is presented.
第一阶段在图像平面上规划运动轨迹,在图像平面上得到的离散规划点映射到机器人关节空间。
In the first stage, trajectory planning is performed on image plane. Planned discrete points on image plane are then mapped to robotic joint space.
为得到高阶非线性系统的相平面,借助状态空间法,提出一种利用图解方法实现高阶非线性系统相轨迹的作图方法。
In order to obtain the phase plane of higher order nonlinear control system, a new graphic method of phase locus of phase plane for higher order nonlinear.
为了对平面实体进行曝光固化,需要同时得到平面图形的轮廓和内部填充的扫描轨迹。
To solidify the planar entities, the contour and the inner scanning paths of the planar graphics are necessary.
提出一种基于二次型性能指标的方法,用于规划平面冗余机械臂的自运动轨迹。
A method based on quadratic performance index is proposed to plan self-motion trajectories of planar redundant manipulators.
把隐函数的优势应用到数控加工编程中,即对于截面法的数控加工,求出刀具切削平面与隐函数曲面的加工轨迹,再用正负法绘制刀具轨迹曲线。
For NC machining of plane section method, the machining path of tool cutting plane and implicit surface can be found, and the curve of the tool path is drawn by the positive-negative method.
适当地选择其结构参数,可使它产生任意的平面运动轨迹。
To properly select the structure parameter, the locus generator can generate arbitrary plane movement locus.
主要探讨了用符号算法解决平面四杆机构四点轨迹综合问题。
We studied the synthesis of the plane linkages with four prescribed points.
弯曲平面倾角和井眼曲率的有机结合可以很好的描述井眼轨迹空间形状对钻头侧向力的影响。
The curvature rate and well curvature plane Angle can be used to make a good description of the influence of the well trajectory parameters on the side fo.
根据协调映射的理论,建立了平面上圆形域、矩形域、多边形域等参数域的映射模型,可根据轨迹规划的需要来选择映射的边界。
Based on the theory of conformal map, map model is built for planar parametric circle, rectangle and polygon regions. The boundary of parametric region rests with the need of tool path planning.
切削刀具旋转时,曲线形刀具刃口的运动轨迹形成一个平面。
When the cutter is rotated, the moving track of the curved cutter edge forms a plane.
并通过平面3自由度机器人轨迹跟踪和8d -WMM执行窗口作业的仿真实例,验证了算法的可行性。
Through the trajectory tracking of a planar 3-dof robot and the simulation examples of 8d-wmm implementation window, the algorithm feasibility is validated.
用基于图象的视觉伺服方法来预测特征点在图象平面的运动轨迹。
Trajectories of feature points on image plane were predicted by image-based visual servo method.
弯曲平面倾角和井眼曲率的有机结合可以很好的描述井眼轨迹空间形状对钻头侧向力的影响。
The curvature rate and well curvature plane Angle can be used to make a good description of the influence of the well trajectory parameters on the side force acting on bit.
利用二次曲面的不变量判定到一定点和一定平面(定直线)的距离之比为常数的空间点的轨迹。
Make use of constant measure of second order curved face, and judge the space figure that arrive the fixed point and the fixed flat surface (fixed straight line) distance's ratio is a constant.
在此方法中,假设井段是空间斜平面上的圆弧,对于滑动钻进方式,圆弧是非常合理的井眼轨迹曲线。
If the section is a circular arc in the spatial slanting plane, the circular arc is the extremely reasonable bore hole path curve for slide drilling in minimum curvature method.
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