GPS elevation fitting four-parameter model and its accuracy analysis control range
Gao Huai-lon · Shanxi Architecture · 2014
GPSRTK measurement technology in the city has been widely used,and seven-parameter transformation model also reached the city of measurement accuracy specification requirements,but for the known points higher,in the actual measurement is often inconvenient. To four-parameters + elevation fitting model parameter model instead of seven observations in a certain area. Through the control area and the measurement accuracy of a preliminary study,draw some useful conclusions.