HF Channel Doppler Spread Realization Based on Multiple Iteration Filtering TechniqueReportar como inadecuado




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HFhigh frequency is widely used in military communication for its remote communication without relay. HF Doppler spread is the key parameter influencing HF communication. Based on Watterson channel model and TDLTime Delay Line model, the paper analyzes the way of realizing HF channel modeling, and provides a detailed and simple way to get fading coefficients caused by Doppler spread, which is called multiple iteration filtering technique in the paper. Compared with traditional HF simulator, the algorithm not only reduces the computational complexity, which is useful for the reality of DSP, but also has preferable expansibility, and can be transplanted to other kind of channel simulation conveniently.

KEYWORDS

Watterson channel model; Narrowband HF channel; Doppler spread; Gaussian power spectrum

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Autor: Wei Tian, Xinli Zhou, Qingping Meng, Fuqi Li

Fuente: http://www.scirp.org/



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