Accuracy of Code GNSS Receivers under Various Conditions

The main objective of this research work was to study the accuracy GNSS code receivers under poor sky visibility conditions based on measurements three different objects (point, line, and surface) additionally test results point positioning with good conditions. measurement 3 smartphones (in same mode check repeatability) 2 handheld (working in GPS+GLONASS modes). methodology RTK technique, whose coordinates were assumed as a reference. Based results, significant influence measuring vicinity high trees obtained observed for both precise geodetic equipment tested receivers. More favorable when using mobile phones. On other hand, case motion, guaranteed higher accuracy. Moreover, showed that might achieve better than smartphones, position be determined greater reliability. Furthermore, characterized by smaller number outliers.