RF RECEIVER HAVING TIMMING OFFSET RECOVERY FUCTION AND TIMMING OFFSET RECOVERY METHOD USING THEREOF

摘要

A radio frequency receiver which has a timing offset recovering function and a timing offset recovering method are provided to recover the timing offset by moving the location of a determination slot according to the offset of a sample signal generated through the signal sampling. A preprocessor(110) converts a radio frequency signal into a digital signal. A differential operation unit(120) obtains a differentiated signal by multiplying the digital signal by a received digital signal. A correlation unit(130) correlates the differentiated signal with each PN code sequence and sequentially outputs the correlated results. A setting unit(140) sequentially stores the correlation values. A demodulated value estimation unit(150) estimates the PN code sequences based on the symbol of the received signal.