Method for generating binary offset carrier correlation function based on local signals, apparatus for tracking binary offset carrier signal, and spread spectrum signal receiver system

Abstract

A method of generating a correlation function used to track a code phase delay value for a local code, in a spread spectrum signal receiver system, to be correlated with a received cosine or sine BOC-modulated signal, in which plurality of pulses successively occur in a single period of a spreading code chip is presented. The Method may include generating a local signal pair having a phase delay value based on a first and second local signal pair defined by first and last pulses of a signal pulse train, received during a single period of a sub-carrier of the received signal, and a given main peak shape parameter, generating a sub-correlation function pair by performing correlation operations of the received signal and the local signal pair with respect to a total time and generating a main correlation function having only a main peak by performing an elimination operation of the sub-correlation function pair.