APPARATUS AND METHOD FOR ESTIMATING A FREQUENCY OFFSET IN OFDM
摘要
<p>PURPOSE: An apparatus for frequency estimation at a OFDM system and a method thereof are provided to magnify frequency offset range by using a signal of period diagram in rayleigh fading channel environment. CONSTITUTION: An envelope curve regulating process of component generating unit(200) generates a component of envelop equality process. A integer frequency offset estimator(300) gets the fixed number frequency offset estimation value in which the sum between the consecutive period diagram makes have the maximum value. The prime number frequency offset estimator(400) gets the fraction frequency offset estimation value from the phase difference of the consecutive period diagram. The remainder frequency offset estimator(500) gets the frequency offset by using the fixed number frequency offset presumed and the period diagram corresponding to the fraction frequency offset.</p>
申请公布号
KR20100054987(A)
申请公布日期
2010.05.26
申请号
KR20080113863
申请日期
2008.11.17
申请人
SUNGKYUNKWAN UNIVERSITY FOUNDATION FOR CORPORATE COLLABORATION
发明人
AHN, SANG HO;YOON, SEOK HO;KIM, SANG HUN;CHONG, DA HAE;LEE, YOUNG YOON;YOON, TAE UNG;LEE, YOUNG PO