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用MPEG-2编码压缩技术进行远传 我国已建成了遍于全国各省市的SDH光纤电缆骨干网,SDH已有统一的国际标准,因此得到了极为广泛的应用,并已成为中国有线电视、各大电信公司运营的根本支柱,SDH网络成为传输网的骨干地位是无法取代的。 SDH(Synchronous Digital Hicrarchy)传输技术称为同步数字体系,SDH传输网是一种高质量、高速率传输的光纤技术与智能化网络单元技术有机地结合在
Using MPEG-2 Encoding Compression for Remote Transmission China has built SDH fiber-optic cable backbone network covering all provinces and cities in the country. SDH has a unified international standard and has been widely used and has become China’s CATV Large telecommunications companies operating the fundamental pillar of the SDH network as the backbone of the transmission network can not be replaced. SDH (Synchronous Digital Hicrarchy) transmission technology called synchronous digital system, SDH transmission network is a high-quality, high-speed transmission fiber technology and intelligent network unit technology organically integrated