| With the formation of the GPS system and improvement, the development of global satellite navigation system, which greatly promoted the development of many other disciplines, such as geodesy, astronomy, meteorology. However, the GPS attitude determination technology is a popular direction in recent years, which are widely used in aviation, maritime and land areas. This technology now is in technical maturity, can provide real-time weather information, navigation and attitude service. There are value in use in practice.This paper introduced the domestic and foreign GPS measurement of the technology of directional posture survey, the application prospect and trend of development; Resolves the coordinate of the observation satellite, gives a method for different coordinate transition; Writing JAVA program, which can be used to calculate the observation file extract the data; Discusses how to use the carrier phase measurement technology to measure the basic principle of directional posture, research and analysis the mathematical model of the carrier phase difference measurement; To surveyed has carried on the error analysis, proposed that corresponding weakened or eliminates each error's all sorts of measures; According to the oriented appearance of the key technology, which is also a difficult problem: integer ambiguity, and carried on the detailed analysis discussed, and according to the GPS double antenna (a single short baseline and known its length),and deduced the calculating range of the integer ambiguity, using double frequency GPS receiver and get the result of integer ambiguity, with measured data analysis, confirmed this resolving method actually, and discuss the error problem. |
