抚顺浑河断裂形变边角网灵敏度计算

对中精度一定情况下,微型边角网的短边测角误差相对大些,其成果应作不等精度混合平差。以实际观测资料计算了抚顺浑河断裂变形边角网的灵敏度,其中红砖厂网Y方向的灵敏度极差,主要原因是图形太差,提高的措施有:对全部边角进行观测的成果作不等精度混合平差;舍弃短边的方向观测;提高测角精度。红砖厂网不同观测方案灵敏度的计算表明,去掉短边方向的方案比观测全部边角方案Y方向灵敏度提高了约2.0倍。

Compution about the Sensitive of the Rupture Deformation of Fushun Hunhe's Brim and Angle Net

Under a certain aim-mid precision, the error of short line angle survey of the mini brim-angle net is bigger, so the production should be done the unequal precision mixable adjustment. Using the data of active survey, I computed the sensitivity of the rupture deformation of Fushun hunhe′s brim-angle net. The red brick factory net′s Y direction′s sensitivity was the worst. The reason was the poor quality of the maps. The measures to improve such situations are as follows: make unequal precision mixable adjustment about the whole production of the brim-angle net; abnegated the survey of the short line; improve the angle survey precision. Compared the computation data about the sensitivity of different observation schemes of the red brick factory′s net, the Y direction′s sensitivity when taking out the short line was improved two times than surveying all angle and net.