The Design Of Two Dimensional Attiude Measuring Platform Based On The LEA-4T

With the further development of GPS technology at recent years, the method of throughusing of GPS carrier signal to achieve the attitude has become a new area of GPS applications.This paper around the theme of through using of carrier phase differential GPS technology todetermine the two-dimensional attitude of vector. Focuses on the principles of GPS attitudemeasurement and algorithm, and simulation to achieve a set of attitude determination system.In the process of hardware design, this paper around the chips of LEA-4T, the keyproblem of treatment are discussed in detail. Such as the selection of GPS receiver and GPSantenna, the design of power, and in the printed circuit board production process,the designof50ohm impedance corresponding with receiving, all of this are described in detail in thispaper.Then we make a description in detail about the principles of attitude determination andthe solution of ambiguity. For the design of the application to coordinate system and thetransformation of the coordinate system directly, there are detailed derivation. With basicmethod attitude measuring, we use the method of carrier phase measurement to implement. Inthe process of measurement ambiguity is the key problems, this paper summarizes thecurrently various methods of ambiguity at first, after understanding the theory and method,We programmed to the algorithm of which using differential carrier phase to determinationthe two-dimensional attitude, and also design a complete set of attitude determinationsimulation system. At last, the paper gives a detail plan about how to build a set of attitudedetermination system, and simulate to prove its validity and reliability.Finally we make the summarized of the hole text and proposed to the next studied,andput forward the need to further study and solve the problem...