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This paper presents an equalization on-channel repeater (OCR) for terrestrial-digital multimedia broadcasting (T-DMB) system of Korea. The proposed OCR uses a time-domain equalizer based on adaptive complex FIR filtering to remove a feedback signal due to incomplete antenna isolation and multipath signal existing between a main transmitter and the OCR. This makes it possible to emit a high-power error-...
This paper presents a hardware architecture of DFE (decision feedback equalizer) for DTxR distributed repeater. Distributed transmission is a key technology of SFN (single frequency network) applied to the ATSC system for terrestrial digital television. In this paper, we provide a detailed description of pipelined DFE equalizer design for DTxR receiver part, which includes computer simulation results,...
This paper presents the transmitter identification (TxID) signal analyzer for the ATSC terrestrial digital TV system in single frequency networks (SFNs). The structure of the TxID signal analyzer and its practical use in SFN environment are presented with a theoretical approach of the performance measurement The proposed TxID signal analyzer shows robustness at low carrier to noise ratio (CNR), and...
This paper presents a novel pre-equalization method to minimize the signal processing time delay of the equalization digital on-channel repeater (EDOCR) for the ATSC terrestrial digital TV system. The proposed pre-equalization method is to calculate pre-equalizer filter coefficients by using a baseband signal as a reference signal and a demodulated repeater output signal, then to create new VSB pulse...
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