导线测量——闭合导线计算实例及误差减小方法

Polygonal Chain—Calculation Examples of Closed Conductors and Error Reduction Methods

摘要: 导线布设具有较强的机动性和灵活性，适用于小地区平面控制测量。相邻两控制点依次用直线连接起来，总体构成折线形式，称为导线；其中的控制点称为导线点。导线测量是通过对各导线边的边长和各转折角的角度的测定，由起算数据，依次推算出各边的坐标方位角，从而求出各导线未知点的坐标。

Abstract: Conductor layout has strong mobility and flexibility, suitable for small area plane control survey. Adjacent two control points are connected with a straight line, the overall form of broken line, known as the conductor; among them, the control point is called traverse point. Traverse meas-urement is to determine the side length of each traverse and the angle of each turning angle. From the starting data, the coordinate azimuth of each edge is calculated in turn, so as to obtain the co-ordinates of the unknown points of each traverse.