短波通信中的宽带信道建模方法与比较  

Comparison of Wideband Channel Models in HF Communication

作　　者：唐万斌[1] 涂旭东[1] 李少谦[1] 

机构地区：[1]电子科技大学通信抗干扰技术国家级重点实验室,成都610054

出　　处：《电子科技大学学报》2003年第5期555-559,共5页Journal of University of Electronic Science and Technology of China

摘　　要：基于对短波宽带信道的建模是研究短波宽带通信系统的关键和难点等问题。介绍了Volger决定性模型、子带并行—宽带窄带化模型、Watterson的两种改进模型和伪决定性模型4种典型的短波宽带信道模型,并进行比较和性能分析。经分析表明,作为决定性模型,Volger模型较为全面地反映了短波宽带信道的特性,但有不完善之处,同时也提出了进一步改进该模型的方向。The key of developing high frequency wideband communication system is how to model the HF wideband channel. Some HF wideband models are discussed and compared in this paper, including Vogler model, parallel subband model, two improved Watterson models and Pseudo-Deterministic model. As a deterministic model, Volger model basically describes the characteristics of HF wideband channel, but it also needs to be improved. The improvement of Vogler model is given in this paper.

关 键 词：短波通信 时间色散 频率色散 宽带短波信道 

分 类 号：TN92[电子电信—通信与信息系统]