摘要
对国道沉降观测水准网中观测值进行整体平差和分组平差的试验表明,在不提高外业观测精度的情况下,对观测值进行分组平差,精度可满足变形监测网质量标准要求。
Based on the test of subsiding observation standard network average error of the nation road, the paper considers the selection of observing value group average error to meet the demand of the deformation observation value under the condition of no increasing observing accuracy.
出处
《同煤科技》
2004年第1期33-34,共2页
Datong Coal Science & Technology
关键词
沉降观测
水准网
平差
测绘学
测量误差
survey
measure error and average error calculation
subsiding observation station
observing value integrated average error
observing value group average error
