RECEIVING SIGNAL DETECTING METHOD CAPABLE OF DETECTING THE WEAK GNSS SIGNAL BY USING THE VERIFICATION PROCEDURE ABOUT THE CORRELATION RESULT AND A SATELLITE NAVIGATION RECEIVING DETECTING DEVICE FOR IMPLEMENTING THE SAME

摘要

PURPOSE: A receiving signal detecting method and a satellite navigation receiving detecting device for implementing the same are provided to increase the signal detection probability in given false alarm probability by adding the verification procedure about the correlation result in a signal detection process.;CONSTITUTION: A verification unit detects a parallel signal(S101). A correlation matrix produced through the detection procedure is saved(S103). The verification unit decides the unusual condition of the saved correlation value(S105). According to the decision result, a detection unit declares signal absence(S107). According to the decision result, a selecting unit selectively saves the candidate cell for the correlation value verification(S109). The verification unit is created the inside demodulation signal by using the information of each cell included in the candidate cell. The verification unit performs the correlation at the time area(S111). The verification unit compares the result of the non-coherent accumulation with the verification critical value which is defined in advance(S113). The detection unit declares false alarm(S115). The detection unit declares signal presence(S117).;COPYRIGHT KIPO 2010