k-LNM计算单频网增益应用研究
Video Engineering(2021)
Abstract
概述地面数字电视单频网(Single Frequency Network,SFN)增益的概念、SFN覆盖判据及k因子对数正态法(k Log-Normal Method,k-LNM)算法,研究SFN组网前后对数正态分布变量的变化趋势,将SFN增益分为加性增益和统计增益,针对等场强和不等场强两种场景给出了应用k-LNM计算SFN增益的实例并分析计算结果.研究过程和结果为地面数字电视广播(Digital Television Terrestrial Multimedia Broadcasting,DTMB)SFN组网规划和建设过程中扩大覆盖和降低干扰提供了新的理论依据.
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