DVB-T OFDM接收机的模式检测、同步和信道估计

GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489) Pub Date : 2003-12-01 DOI:10.1109/GLOCOM.2003.1258670

Shiou-Hong Chen, Way-Hong He, Hou-Shin Chen, Yumin Lee

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引用次数: 32

摘要

提出了一种可变子载波数的DVB-T OFDM基带接收机。该接收机由盲模检测器、时频同步器和信道估计器组成。盲模检测器采用一种新颖的算法来检测接收信号中的OFDM子载波数。检测到传输模式后，进行时间和频率同步。最后，使用ID或2D插值进行信道估计。仿真结果表明，所提出的模式检测和同步算法接近理想，具有良好的综合性能。

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Mode detection, synchronization, and channel estimation for DVB-T OFDM receiver

A baseband receiver for DVB-T OFDM with variable number of subcarriers is presented in this paper. The proposed receiver consists of a blind mode detector, time and frequency synchronizer, and channel estimator. The blind mode detector uses a novel algorithm to detect the number of OFDM subcarriers in the received signal. Time and frequency synchronization is performed after the transmission mode is detected. Finally, channel estimation is performed using ID or 2D interpolation. Simulation results show that the proposed mode detection and synchronization algorithms are close to ideal, and good overall performance is achievable.

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来源期刊

GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489)

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