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TDS-OFDM RECEIVER WITH IMPROVED RECEIVING PERFORMANCE BY PERFORMING CHANNEL EQUALIZATION ON THE BASIS OF CHANNEL STATUS ESTIMATED BY USING SCATTERED PILOTS, AND CHANNEL EQUALIZATION METHOD USING THE SAME
TDS-OFDM RECEIVER WITH IMPROVED RECEIVING PERFORMANCE BY PERFORMING CHANNEL EQUALIZATION ON THE BASIS OF CHANNEL STATUS ESTIMATED BY USING SCATTERED PILOTS, AND CHANNEL EQUALIZATION METHOD USING THE SAME
PURPOSE: A TDS-OFDM(Time Domain Synchronous Orthogonal Frequency Division Multiplexing) receiver and a channel equalization method are provided to achieve improved receiving performance by performing a channel equalization on the basis of the channel status estimated by using scattered pilots. CONSTITUTION: A TDS-OFDM receiver comprises a synchronization unit(140) for performing a synchronization on an OFDM broadcast signal which is received through an antenna, down converted to a baseband, and analog-digital converted; a demultiplexer(160) for dividing the signal received from the synchronization unit into a plurality of signals including an OFDM symbol; an FFT(Fast Fourier Transform) unit(300) for performing FFT on the OFDM symbol; a frequency domain equalization unit(500) for performing a channel equalization in a frequency domain, on the basis of the channel status estimated by using the scattered pilots in the OFDM symbol; and a forward error correction unit(600) for detecting and correcting error of the signal received from the frequency domain equalization unit.
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