利用程差修正所获得的双站交会角

Cut Angle Obtained by Correcting Path Difference

对于基于测向/时差测量的双站定位系统,可将定位三角形划分为程差三角形和扣减程差三角形的等腰三角形,利用扣减程差的等腰三角形底角需相等的条件可获得在交会角与修正角之间的关系,用于对实测程差值的修正,从而将钝角的程差三角形修正为直角三角形。由此即可解出形式更为简单的交会角计算式。

For two-stations location system based on the measure of DF and time difference, the locating triangle can be divided into two triangles： the path difference triangle and the equicrural triangle obtained by taking out the path difference triangle. Using the condition that base angle of equicrural triangle is equivalent can obtain the relationship between cut angle and correcting angle. This relationship can use correcting measured path difference and thereby the path difference triangle which is an obtuse angle can be corrected into right-angled triangle. Thereout, the calculation method of cut angle can be solved out whose form is more simple.