GPS控制网平面精度预计和网形优化

More than one form were taken into account before the establishment of GPS net-work.. The accuracy and the cost of the net work were estimated to choose the appropriate net which have the desired accuracy and cost less. It was needed to handle a great deal of matrix to attain the accuracy of the network. It was needed to make use of computer to do calculation. For the sake of estimating accuracy more accurately and speed, the author compiled the procedure to estimate of accuracy to GPS net work in VB. It provided a distinctly warranty for the option of GPS net work. It recounted the option of GPS plane network By example of the construction control network of Xinzhuangzi power station.