摘要
给出了一种单频网信道测试的建模方法。具体包括:首先通过模拟器仿真两径信道,然后针对不同两径时延和场强差,测量系统工作的载噪比(C/N)门限,最后通过分析采集数据,给出一种简单的两径模型下载噪比门限的拟合公式,通过该公式拟合的相关系数基本大于0.95。
In this paper, a method for channel modeling of the single frequency network is presented. The procedure is that first imitating the two-path channel by the simulator, then measuring the carrier-to-noise （C/N） threshold with different two-path delays and signal strength differences. After analyzing the collected data, a simplified threshold model for two-path channel is presented, of which the correlation coefficients can be more than 0.95.
出处
《电视技术》
北大核心
2011年第9期1-2,53,共3页
Video Engineering
基金
清华大学自主科研计划资助(20091081280)
关键词
单频网
信道建模
非线性多变量拟合
数字电视
single frequency network
channel modeling
nonlinear multi-variable fitting
digital television
