利用后方交会测量水底点高程的新方法研究

New Method of Height Surveying of Points under Water by Resection

在没有测深仪和船只的情况下,本文探索出"测绳测距,后方交会"的新方法,利用测绳测量水底点到岸边两个已知点的距离,根据后方交会原理计算水底点的平面位置和高程,该方法外业操作方便,内业计算简单,为水深测量提供了新的思路。

Without depth sounder and ship,a new method“ranging by measuring line,calculating by Resection”is been explored,with which distance between points under water and two known points at bank side is ranged by measuring line,position and height of points under water is calculated by resection.The new method is convenient to operate,simple to calculate and provide a new train of thought for bathymetric surveying.