Research On The Precision Measuring Technology Of Ground Station's Position And Attitude In Satellite-orbit Measurement Testing

The subject of this paper is to study the position and attitude of the mobile station precise measuring technology.Be combined in a star-orbit measurement testing, the precise determination of the position and attitude parameters of the mobile station is a prerequisite for the test to function correctly, since the mobility features of the mobile station, because of the position and attitude parameters cannot be measured in advance, need real-time measurement. Meanwhile the position coordinates of the mobile station as a original baseline measurements parameters of the test, must have precision metrological characteristics, therefore, need to be precisely traced.The basic question, "How to real-time determine the position and attitude parameters of a mobile station, and make it with precision metrological characteristics" around three key technical problems of the mobile station position and attitude precision measurement of a study.(1) Position and attitude precision measurement methodologies. According to the mobility characteristics of the mobile station, conventional methods cannot be competent real-time precise determination of the location of the mobile station mission. In attitude measurement methods, the inertial navigation method is not only expensive, but also in the practical application of information to be known initial attitude of the mobile station, the inconvenience to the engineering practice. Therefore, to explore the position and attitude precision measurement methodologies applicable to the mobile station is the first key technical issues to be studied in this paper.(2) Issue of real-time measurement technology system design. Real-time measurement system on the vehicle position and attitude precision measurement is still processing the theoretical stage, the mobile station for measuring the position and attitude information is not readily available for real-time measurement system, needs to be designed. Therefore, how to design technical solutions to improve the real-time measurement system mobile station position and attitude solver accuracy, becoming the second key technical issues to be studied in this paper.(3) Issue of mobile station's coordinates precise tracing. Depending on the variable weather and other factors, the traditional baseline length tracing method cannot achieve precise location coordinates of the mobile station traceability. Therefore, to explore methodological issues for mobile station location coordinates of precision traceable become the third key technology issue of the paper.To address the first key technical problems, the paper studied the conventional position and attitude measurement method, and explored with the use of satellite positioning and attitude determination method can achieve real-time measurement of the position and attitude of the mobile station. To solve the second key technical problems, the paper-based on three antennas installation constraints, studied the three-point joint position and attitude solution method, and according to the needs of the technology designed technical solutions in real-time measurement system. The third key technical problems, the paper studied the feasibility of IGS tracking station coordinates precise location coordinates of the mobile station is traceable to, and explore the use of GAMIT software implementation precise location coordinates of the mobile station traceability.Thesis based on real-time measurement system technology solutions designed for the mobile station to start measuring the position and attitude of the experimental results showed that the real-time measurement systems technology program design realistic, solver results can meet the position and attitude of the mobile station the precision requirements, to achieve a paper intended purpose.