GENERATING METHOD FOR CORRELATION FUNCTION WITH NO SIDE-PEAK AND TRACKING SYSTEM FOR COSINE PHASED BOC SIGNAL

摘要

PURPOSE: A correlation function generation method and a cosign phase BOC signal tracking system are provided to remove surrounding peak in a self-correlation function of a BOC signal for tracking a BOC signal. CONSTITUTION: A reception unit(110) receives a BOC signal. A sub-correlation function generation unit(120) generates a sub-correlation function on a received BOC signal. A sub-correlation function group classification unit(130) classifies the rest sub-correlation functions into two groups except for the first sub-correlation function and the last sub-correlation function. A middle correlation function generation unit(140) generates two correlation function having correlation values having the same sign and being superposed in a main peak range by combining the first sub-correlation function and the last sub-correlation function. A final correlation function generation unit(150) generates a final correlation function by combining two correlation functions generated in the middle correlation function generation unit. A determining unit(160) tracks a signal using the final correlation function. [Reference numerals] (100) BOC signal tracing system; (110) Reception unit; (120) Sub-correlation function generation unit; (130) Sub-correlation function group classification unit; (140) Middle correlation function generation unit; (150) Final correlation function generation unit; (160) Determining unit