Maritime multi-hop HF radio propagation

Research on HF Radio Propagation on the Sea by Machine Learning Optimized Model

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/189/6/062047 ◽

2018 ◽

Vol 189 ◽

pp. 062047

Author(s):

Yining Song ◽

Meng Wang ◽

Qing Yuan

Keyword(s):

Machine Learning ◽

Radio Propagation ◽

Optimized Model ◽

Hf Radio Propagation

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Impact of the auroral ionosphere on HF radio propagation

2011 XXXth URSI General Assembly and Scientific Symposium ◽

10.1109/ursigass.2011.6051041 ◽

2011 ◽

Cited By ~ 2

Author(s):

D. V. Blagoveshchensky ◽

M. A. Sergeeva

Keyword(s):

Radio Propagation ◽

Auroral Ionosphere ◽

Hf Radio Propagation

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Study on the strength loss of Multi-hop HF Radio Propagation

MATEC Web of Conferences ◽

10.1051/matecconf/201817503012 ◽

2018 ◽

Vol 175 ◽

pp. 03012 ◽

Cited By ~ 1

Author(s):

Lingxiao Liu ◽

Tian Lu ◽

Mingxue Gong ◽

Wuyu Zhang

Keyword(s):

High Frequency ◽

Strength Loss ◽

Radio Propagation ◽

Radio Waves ◽

Long Distance ◽

Propagation Process ◽

Distance Information ◽

Rugged Terrain ◽

Radio Signals ◽

Hf Radio Propagation

The reflections of high frequency (HF) radio waves between ionosphere and earth’s surface make long-distance information transmission possible. In this paper, the propagation process of radio signals was analyzed and the ionosphere was simplified. Considering the strength loss of signals that occurs in the travelling process and at the reflection points, two pairs of differential equations and integral equations were established to simulate the strength variations of HF radio waves and noises. A different equation of SNR was also developed, which utilized the failure threshold of signal-noise-ratio (SNR) as a criterion to evaluate the effectiveness of signals. Meanwhile, the pace of SNR attenuation was simulated when reflections happens on calm ocean, turbulent ocean, smooth terrain and rugged terrain.

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