探讨基于数字前端(Digital Front End,DFE)处理器的广播电视信号传输优化方法,以解决带宽利用效率低、长距离传输衰减及实时处理能力不足的问题.基于DFE的应用,提出带宽优化与自适应调制编码、多级噪声抑制及动态负载均衡 3 项技术.实验结果显示,所提的优化方法显著提高频谱利用率、降低误码率,并减少处理时延,从而验证了其在提高广播电视信号传输质量方面的潜力.
Optimization Method of Broadcast and Television Signal Transmission Based on Digital Front End Processor
This paper discusses the optimization method of broadcast and television signal transmission based on Digital Front End(DFE)processor to solve the problems of low bandwidth utilization efficiency,long distance transmission attenuation and insufficient real-time processing capacity.Based on the application of DFE,three technologies of bandwidth optimization and adaptive modulation coding,multistage noise suppression and dynamic load balancing are proposed.Experimental results show that the proposed optimization method significantly improves spectrum utilization,reduces bit error rate,and reduces processing delay,which verifies its potential in improving the transmission quality of broadcast and television signals.
Digital Front End(DFE)broadcast and television signalspectrum utilization
NETL
NSTL
万方数据
