DVB-T receiver design : algorithms and baseband architecture
碩士 === 國立交通大學 === 電信工程系所 === 92 === To offer high-bit-rate high performance bandwidth-efficient multimedia services and combat the inevitable frequency-selective fading, the European standard for terrestrial digital video broadcasting (DVB-T) has adopted the orthogonal frequency-division multiplexin...
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| Format: | Others |
| Language: | en_US |
| Published: |
2004
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| Online Access: | http://ndltd.ncl.edu.tw/handle/rw6g99 |
| Summary: | 碩士 === 國立交通大學 === 電信工程系所 === 92 === To offer high-bit-rate high performance bandwidth-efficient multimedia services and combat the inevitable frequency-selective fading, the European standard for terrestrial digital video broadcasting (DVB-T) has adopted the orthogonal frequency-division multiplexing (OFDM) technique for transmission over wideband wireless channels.
This thesis presents a baseband architecture for a single frequency network (SFN) DVB-T receiver. We study algorithms for the baseband signal processing unit. These algorithms serve the functionalities of time and frequency synchronization, channel estimation/equalization and impulse noise suppression. In particular, we propose a decision-aided algorithm for joint channel estimation and impulse noise suppression. The channel estimation part makes full use of the time and frequency correlation information. The performance of each subsystems and the overall system is evaluated through computer simulations and related parameters are optimized accordingly.
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