The paper studies electro-optical theodolite method of measuring the aircraft attitude. Firstly

Single Station theodolite was introduced in a measured distance from the aircraft posture information. An exhaustive approach was used to access to the aircraft axis of the feature points and the location in the space was used to obtain space posture parameters. Secondly

the multi-station theodolite was introduced to get the information of the aircraft flight attitude by method of using all things to the intersection. Two-dimensional image to obtain objective axis by fitting algorithm using Hough transform. And then

Calculate the vertical distance of the origin to the target of the central axis and the origin to the target of the central axis of the angle between the normal and the X-axis obtaining the linear equation in the two-dimensional plane. Two-dimensional axis of the target image and the camera system's optical center only identified a space plane. The aircraft yaw axis angle and pitch angle can be obtained by getting the space axis using things to the intersection method. Experimental results show that the two yaw angle error in the calculating method is 0.28% and the pitch angle deviation is 1.1%.In this paper

the mathematical model is correct and the algorithm is reasonable in extracting effective parameters of the aircraft's attitude