摘要
为了满足实时有效地监控有线电视信号在HFC网络上传输的指标,节省运营商排除故障周期,降低维护成本,提出了有线电视信号远端监测仪在分布式有线数字电视网络中应用的方案,阐述了远端监测仪分布在HFC网络上的工作原理和特点,同时着重描述了该方案中基于嵌入式的远端监测仪的软硬件设计原理和实现方法。通过实验系统运行稳定、对有线电视信号参数(电平、伴音电平、MER、BER、)的测量与精密仪器对比,误差控制在±1～2dBμV范围之内,符合测量仪器设备的要求。
In order to meet real--time monitoring of the effective index of CATV HFC networks, Operator troubleshooting cycle savings, reduce maintenance costs. In this paper, remote monitoring equipment in a distributed digital cable TV network in the application program, describes the remote monitor located in the HFC network and features on the works, and describes the program focuses on the remote monitor in the software and hardware design principles and implementation. Stable through the experimental system, the cable TV signal pa- rameters （level, sound level, MER, BER,） measurement and precision instruments contrast, error control in ±1-2dBtLV range, in line with the requirements of measuring equipment.
出处
《计算机测量与控制》
CSCD
北大核心
2012年第6期1714-1716,1736,共4页
Computer Measurement &Control
