The analysis results show that in typical cases the range positioning error of the radar-theodolite joint positioning model is basically equivalent to radar range finding error.

The mathematic model was established after obtaining the measurement value of the star and the errors of the theodolite were calculated by using the least square method.

Abstract : To effectively evaluate the tracking ability of a photoelectric theodolite, a new tracking error model based on the Radial Basis Function(RBF) neural network was established.