Aircraft Navigation Systems Research And Design Based On GPS And GIS Integration Environment

At present, the GPS system has been widely applied in positioning, navigation, precised timing, and other fields. When GPS and other navigation systems are combining applicated on aircraft navigation, it will help improving air traffic management to make sure that aircraft navigation can fly more securely, accuratly, efficiently, and increasing the economic efficiency of aerospace at the same time.Based on the analysis of GPS navigation and positioning principle and aircraft navigation performance requirements, the electronic aircraft navigation map is expounded. And the aircraft electronic navigation map data and processing requirements come out. Aftert then, electronic mapping data integrated of navigational development was on Analysised.Then, it comes to the GPS Navigational analyzing in real time. The analysis focused on the impact of navigation key issues-GPS signals, the undetermined whole weeks of GPS signals is most important one as well as the methods to determine the parameters of aircraft navigation under the weak GPS signals in various environment. The way to work out the undetermined whole weeks was given out, and the quality is guaranteed by Statistical Analysis. In solving the flight track, land-line is substituted to the traditional great circle to improve the accuracy of navigation parameters. In condition of weak GPS signal, ADAMS implicit method is used in calculating aircraft navigation parameters.Finally, basing on the GPS-OEM board of accepting signal, a program of aircraft navigation integration on the GPS & GIS was expounded. The program was developed on windows'VC platform; and the description of signal format received, datas-torage, human-machine interface model are in detailed; and part of the results achieved.