Design of a high-sensitivity DVB-T receiver system using dual receivers and silicon tuners

• Main Authors: Wei-Shen Lai, 賴威慎
• Other Authors: Ying-Wen Bai
• Format: Others
• Language: zh-TW
• Online Access: http://ndltd.ncl.edu.tw/handle/18778905172799151691

碩士 === 輔仁大學 === 電子工程學系 === 98 === In this paper we design a high-sensitivity DVB-T (Digital Video Broadcasting-Terrestrial) system using dual receivers and silicon tuners. We have modified and utilized two receivers in our front end, each cooperating with a tuner by using an OFDM (Orthogonal Frequency Division Multiplexing) structure to demodulate the receiving signal. Dual receivers compensate each other and improve the sensitivity of the DVB-T system. By using a Silicon tuner we reduce the size of the PCB (Printed Circuit Board) and reduce the power consumption of the system because of the resulting improvement of the semiconductor process. Our design uses the NIM (Network Interface Module) to send video streams via the host connector to the main processor to carry out the signal processing. In addition our design supports the video output to offer different options for a Set-Top Box, a portable TV and a mobile TV.