计算机科学 ›› 2010, Vol. 37 ›› Issue (3): 91-93.
• 计算机网络与信息安全 • 上一篇 下一篇
曹鹏,景渊,黄国策
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CAO Peng,JING Yuan,HUANG Guo-ce
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摘要: 传统短波信道Watterson模型只能模拟信道短期变化规律。为模拟短波信道在各种长度时间段内的变化,针对短波信道接收端信噪比统计特性,提出了一种基于信噪比重放的短波信道仿真算法。该算法以Walnut Street信道模型为基础,通过对实际观测数据进行分析处理,建立接收端信噪比变化的中期和长期变化统计模型,联合Watterson模型实现信道模拟。仿真结果表明,该算法可反映实际信噪比变化规律,为短波网络仿真提供精确的信道质量模拟。
关键词: 短波,网络仿真,信噪比,Walnut Street, Watterson
Abstract: Traditional HF channel model-Watterson Model could simulate channel variations during short terms. In order to simulate channel variations during various terms,a HF channel simulation algorithm based on SNR reproduction was presented according to the statistical characteristics of HF channel. With Walnut Street model as its foundation, observed data were analyzed and processed, the SNR variation models during intermediate and long terms were built, combined with traditional Watterson channel model, the specified HF channel was simulated through SNR prediction. Simulation results show that this algorithm could simulate SNR variations in real channcl,which provides good simulation of channel quality for HF network simulation.
Key words: HF,Network simulation,SNR,Walnut street,Watterson
曹鹏,景渊,黄国策. 基于Walnut Street修正模型的短波信道仿真算法[J]. 计算机科学, 2010, 37(3): 91-93. https://doi.org/
CAO Peng,JING Yuan,HUANG Guo-ce. HF Channel Simulation Algorithm Based on Improved Walnut Street Model[J]. Computer Science, 2010, 37(3): 91-93. https://doi.org/
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