METHOD OF GENERATING BINARY OFFSET CARRIER CORRELATION FUNCTION BASED ON PARTIAL CORRELATION FUNCTIONS, APPARATUS FOR TRACKING BINARY OFFSET CARRIER SIGNAL, AND SPREAD SPECTRUM SIGNAL RECEIVER SYSTEM USING THE SAME
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Oct 28, 2014
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Oct 29, 2013
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Abstract
A method of generating a BOC correlation function based on partial correlation functions, an apparatus for tracking a BOC signal, and a spread spectrum signal receiver system using the same are disclosed herein. The apparatus includes a frequency offset compensation unit, a local code generation unit, a mixer, a delay lock loop (DLL), a phase lock loop (PLL), and a data extraction unit. The frequency offset compensation unit outputs a compensated received signal with respect to a received signal. The local code generation unit generates a delay-compensated local code based on a code delay value. The mixer mixes the delay-compensated local code with the frequency offset-compensated received signal. The DLL repeatedly tracks and calculates a code delay value. The PLL repeatedly calculates a carrier frequency compensation value. The data extraction unit extracts spreading data from a mixture of the delay-compensated local code and the compensated received signal.
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