A Study of the Effect of Known Station’s Priori Variance for a GPS Densification Network

• Main Authors: Tung-Fa Hsieh, 謝東發
• Other Authors: Szu-Pyng Kao
• Format: Others
• Language: zh-TW
• Published: 2001
• Online Access: http://ndltd.ncl.edu.tw/handle/08966459550332506241

碩士 === 國立中興大學 === 土木工程學系 === 89 === Abstract Basically, densification surveying of control networks can be adjusted by conventional hierarchical adjusted model. It is doubted whether it is reasonable when using conventional hierarchical adjustment model which the known points are assumed errorless for high precision GPS control networks. In this study, two examples of densification networks are used for analysis. One is conventional hierarchical adjustment model, the other is the adjustment model with known points priori precision. We also analyze the calculated results. In the conclusion, it is not reasonable for the densification points precision of GPS densification with conventional hierarchical adjustment model. It will get the average and reasonable densification points precision with the know points priori precision adjustment model. The precision of densification points and baseline are accepted in the rule.