satellite navigation system integrity monitoring method based on multi- failure

摘要

the present invention is a satellite navigation system (GPS: Global Positioning System) are the components of a malfunction in the wrong navigation information how to recognize it in the ground using false information to users to detect the true value of GPS failure, which could result in an accident falls precision navigation accuracy in the drive navigation system if you want to export, faster satellite finding fault signal in case of multiple failures relates to a navigation system integrity monitoring method by multiple failures. ; The air navigation because of the GPS navigation accuracy for the safety of aircraft, as well as drive reliability must be guaranteed as a function to check this integrity monitoring (integrity monitoring) and performs the integrity of a user by monitoring when the failure of the GPS system to work to ensure that it remains consistent generation of satellite navigation system detects the user's ground it and issue a warning to the user within a reasonable time of this fact refers to the ability to make a deal with this. ; How to implement this method of integrity monitoring using other navigation-related equipment and ground-mounted largely on how compensation systems or aircraft to perform alone in GPS receiver itself This may, RAIM (Receiver Autonomous Integrity Monitoring) is a method for the integrity of the GPS receiver itself in monitoring the implementation of methods as yet until RAIM techniques from one satellite failed under the assumption that failure to detect and identify techniques wateuna be announced at least two satellites are less likely to occur at the same time stand for in the event of a failure it is difficult to identify a mutual damping effect of the bias signal, assuming no studies have been almost announced. ; In the present invention, avoiding the interference of the vector through the re-creation of the tea Ferrer Ferrer T vector by the vertical transform at Ferrer T space is difficult as the correct identification of the mutual interference of the GPS error factor if multiple failures that may occur in practical application to achieve identification by way of the multi-failure.