Accuracy Analysis of RTK in City Control Survey
Lixin Sun · Journal of Chengde Petroleum College · 2009
In city control survey,Dynamic GPS(RTK) needs to be combined with conventional measurements to complete a whole project in most cases as a result of some restriction.Therefore the accuracy of RTK needs to be objectively assessed.After an analysis of two modes of operation with the law of error propagation theory,RTK is confirmed to be with accurate and evenly distributed measurement points,but with less relative accuracy of adjacent wire points than conventional RTK measurement.In accordance with the existing norms of precision on wire points,the points laying requirements should be changed,and the length should be lengthened in RTK operation.