Design of In-Band Signals in Hybrid IBOC FM DAB Systems
碩士 === 國立成功大學 === 電腦與通信工程研究所 === 94 === Hybrid In-Band On-Channel (IBOC) digital audio broadcasting (DAB) system, which conveys digital audio signals simultaneously with analog audio signals, has been proposed as a compatible solution to DAB system in the frequency modulation (FM) band. However, cur...
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| Format: | Others |
| Language: | en_US |
| Published: |
2006
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| Online Access: | http://ndltd.ncl.edu.tw/handle/04949687329627551273 |
| Summary: | 碩士 === 國立成功大學 === 電腦與通信工程研究所 === 94 === Hybrid In-Band On-Channel (IBOC) digital audio broadcasting (DAB) system, which conveys digital audio signals simultaneously with analog audio signals, has been proposed as a compatible solution to DAB system in the frequency modulation (FM) band. However, current hybrid systems defined in the IBOC FM DAB specification request to transmit the digital signals and the analog signals on nonoverlapped spectrum to avoid self-in-band interference. It is certain that if both signals can be transmitted on the same FM band, it can provide more transmission capacity for digital signals and can improve the spectrum efficiency. In this thesis, we propose a scheme that can transmit digital data and analog FM signals simultaneously in the same band without interfering with each other.
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