sfn single frequency network 中文意思是什麼
sfn single frequency network
解釋
單頻網路-
As dab system serves an area by using one single frequency network ( sfn ), more radio services are available alongside with data and pictures transmissions. this significantly expands the number of channels and allows for a more efficient use of the available spectrum as well as more interactions with audience
由於數碼聲音廣播支援單頻網路的運作,即全港均用單一頻率發射及接收,可以大幅節省頻譜,從而提供更多電臺服務,以及傳輸數據和影像等;由於更有效運用廣播頻譜,電臺頻道數目將可倍增,而服務也可多元化。 -
Sfn single frequency network
單頻網同步網 -
Some excellent methods for optimizing the coverage of sfn are reviewed in this paper. a method for constructing single frequency network with low - power transmitters is proposed
摘要介紹了國際上流行的一些單頻網覆蓋優化方法,並提出了採用對人體輻射影響較小的小功率發射機進行信號覆蓋的方案。 -
This master ’ s degree thesis firstly introduces and discusses the principle of synchronization in sfn ( single frequency network ) based on dvb - t focusing on some key points, then presents a design of sfn time synchronization system based on fpgas, including the modules of sfn adapter after the mpeg - 2 re - multiplexer and sync system serving as the front - side of the dvb - t modulator at transmitters
本論文首先介紹並討論了dvb - t單頻網的時間同步原理,對其中的一些關鍵問題做了詳細的分析,在此基礎上提出了一種基於fpga的dvb - t單頻網時間同步的硬體設計方案,即位於mpeg - 2系統層復用器之後的單頻網適配器和發射臺調制前端的同步系統的fpga設計。
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