GNSS/INS integration: still an attractive candidate for automatic landing systems?

摘要: During the last years, International Symposia on Precision Approach and Automatic Landing (ISPA) have shown a considerable change in significance of integrated landing systems. At first ISPA conference 1995, combination inertial sensors GNSS receivers was thoroughly discussed appeared to be very promising concept, especially with respect ‘Integrity’ ‘Continuity’. Ever since, this particular has received little attention. A comprehensive discussion technical background setback for systems did not take place, primarily because popular opinion that Kalman filter algorithm, which is system integration kernel, sufficiently stable. The true reason meanwhile been identified. aiding an navigation by only one antenna insufficient phases low aircraft dynamics such as case final approach. Instead, multi-antenna required antennas widely distributed over structure. This latter approach, however, causes problems due structural flexibilities. To show based technically feasible, paper discusses following topics. (1) Unstable performance during approach 1-antenna-aiding. (2) Improving prior using additional antennas. (3) Effect distribution. (4) Integrated flexible structures. shows are still attractive candidate automatic equipment preserving advantages