饋線自動(dòng)化系統(tǒng)采用有線中繼通信方式，實(shí)現(xiàn)分站和各個(gè)FTU 的通信，分站和分站之間的通信，分站和主站之間的通信。用四頻復(fù)用FSK 數(shù)字調(diào)制體制，通過(guò)對(duì)四個(gè)副載波的合理調(diào)配，在一條線路上實(shí)現(xiàn)多路、多種類(lèi)型的通信。文中著重分析了通信網(wǎng)中信息傳輸?shù)幕驹?，線路收發(fā)器中信息的調(diào)制與解調(diào)的過(guò)程和實(shí)現(xiàn)方法。
關(guān)鍵詞： 饋線自動(dòng)化 FSK 有線通信 MODEM
Abstract： The feeder automation (FA) system is based on relayed wire communication in order to achieve communication between substation and every FTU, and each substation, and the main station. Using four-frequency reuse FSK digital modulation technology and properly adjusting the four carrier waves, this paper describes how to realize multi-route and multi-kinds signals transmit within a communication line in the feeder automation system. It emphasized on the transmission principle of the information in the communication net, and emphasized on the realization method how to modulate and demodulate in the line transceiver.
Keywords : FA FSK wire communications MODEM