height system

Optimized Design for Auto-adjusting Height System in NC Flame Cutting Machine Based on Complex Genetic Algorithm

基于混合遗传算法的数控火焰切割机自动调高系统的优化设计

Effective Solution of Bridge GPS Level Network of Unifying Normal Height System

统一正常高系统的桥梁GPS水准的有效解法

It briefly introduces the historical change of Wusong Datum in the Changjiang Estuary region, and analyzes the spatial variations of regional mean sea level and theoretical bathymetrical datum plane in this region. A discussion is also given to the height system of the Changjiang Estuary region.

简要介绍长江河口地区吴淞零点的历史沿革，分析了长江河口地区水域平均海水面、理论深度基准面的空间变化，进而讨论长江河口地区的高程系统。

Under the condition of reliable GPS/ level data, boundary restriction to gravitational height anomaly model is made, which aims at weakening the system errors existing in the transform between gravity system and height system, achieving the system transform, improving precision of ultimate model.

在确保GPS/水准点成果可靠的前提下，用其对重力法计算所得的高程异常模型进行框架约束，以削弱重力系统与高程和坐标系统间的系统差，实现系统转换，提高最终模型的精度。