Study Of The Key Measure Technology For The Large Radio Telescope

In the project of FAST (Five hundred meter Aperture Spherical Telescope) , the feed cabin is carried by six big span suspend cables to move in large area. The TPS1000 laser total station made by Laica company. Automatics and intelligence technology of Total Station Instrument has been realized in the measurement field. Especially, the function of Automatic Target Recognition has been widely used in the field of kinetic measure. In small scale local coordinate, it has the advantages such as highly precision, more flexibility, more efficient use and untouched measurement etc.First, this paper studies measure theory and measure equipment. After understand and study measure deeply, considering to LT5m's characteristic of small scale and high precision, a new demarcate method is presented based on adjustment. Second, in order to solve the problem of data communication between total station and computer in the measurement , it need a survey software . The software can accomplish data communication between total station and plotting, and send data to control computer synchronous. So it can implement closed loop control.At last, the application of Kalman filtering algorithm is extend in the tracking measurement system to solve the problem. This paper develops the state model of the tracking measurement system, A Kalman filtering algorithm is adopted to the system. The result of the simulation shows that Kalman filter works well for the improvement of the accuracy of measure system. In process of dealing with measure data from total station, it uses free-net adjustment to improve precision of three targets measure data. While cubic spline interpolation function is used to advance data sampling rate.