STANDARD DEVIATION ESTABLISHING METHOD FOR GNSS PSEUDORANGE CORRECTION CONSIDERING REFERENCE RECEIVER CLOCK ADJUSTMENT EFFECT

摘要

PURPOSE: A standard deviation setting method of a global navigation satellite system(GNSS) pseudo range correction value is provided to accurately estimate a user location error level and performance of an integrity monitoring algorithm. CONSTITUTION: The location of a navigation satellite is calculated from a received signal from each navigation satellite. An elevation angle of each navigation satellite is acquired based on the location of a receiver(S100). A standard deviation of a pseudo range correction value according to the elevation angle is calculated using a navigation signal measurement value collected from each navigation satellite(S200). A standard deviation which considers view error control effects is created from the standard deviation of the pseudo range correction value and the elevation angle with respect to the navigation satellite(S300). The standard deviation which considers the view error control effects with respect to the navigation satellite is inputted as an input value of an integrity monitoring algorithm(S400). A broadcasting message receives the standard deviation of the pseudo range correction value(S500).