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FREQUENCY OFFSET ESTIMATOR OF MULTI-CARRIER RECEIVING SYSTEM FOR ESTIMATING FREQUENCY OFFSET BY USING GUARD BANDS AND METHOD FOR ESTIMATING FREQUENCY OFFSET THEREOF
FREQUENCY OFFSET ESTIMATOR OF MULTI-CARRIER RECEIVING SYSTEM FOR ESTIMATING FREQUENCY OFFSET BY USING GUARD BANDS AND METHOD FOR ESTIMATING FREQUENCY OFFSET THEREOF
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机译:多载波接收系统的频偏估计器,用于利用频域估计频偏,及其频偏估计方法
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摘要
PURPOSE: A frequency offset estimator of a multi-carrier receiving system and a method for estimating a frequency offset thereof are provided to minimize loss of subcarrier signals by estimating a frequency offset by a guard band inserted into a frequency domain. CONSTITUTION: One or more electric power calculating units calculate electric power for a signal of a guard band inserted into a multi-subcarrier signal of a frequency domain. An adder(450) is used for determining a frequency offset by using the electric power calculated from the electric power calculating unit. The electric power calculating unit includes a first electric power calculating unit(410) for calculating first electric power for a first guard band inserted into a front part of the multi-subcarrier signal of the frequency domain and a second electric power calculating unit(430) for calculating second electric power for a second guard band inserted into a rear part of the multi-subcarrier signal of the frequency domain.
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