MATEC Web Conf.
Volume 232, 20182018 2nd International Conference on Electronic Information Technology and Computer Engineering (EITCE 2018)
|Number of page(s)||6|
|Section||Circuit Simulation, Electric Modules and Displacement Sensor|
|Published online||19 November 2018|
Analysis of Signal Reception Mechanism of Sky Wave Long-distance Maritime Communication
College of Electronics and Information, Hangzhou Dianzi University, 310018, Hangzhou, China
2 School of Sciences, Hangzhou Dianzi University, 310018, Hangzhou, China
3 School of Computer Science and Technology, Hangzhou Dianzi University, 310018, Hangzhou, China
4 College of Automation, Hangzhou Dianzi University, 310018, Hangzhou, China
a Corresponding author: email@example.com
Based on the principle of high frequency radio propagation, the signal reception mechanism of sky wave communication over oceans is investigated. Due to long distance signal transmission, the energy loss is inevitable, especially in the space and on the sea surface. Firstly, we establish the space propagation loss model by the ionospheric absorption, the free space propagation characteristics and other extra loss. Referring to the reflection principle of smooth ground and the Kirchhoff approximation, the energy loss models of the calm sea surface and the turbulent sea surface are obtained respectively. Then, through combining the space propagation loss model and the sea surface propagation loss models, we give out a formula of receiving point field strength. According to the signal to noise ratio, we summarize a complete and concise sky wave maritime communication calculation process, through which multi hops number of the receivable sky wave signal can be calculated accurately. The experimental results show the effectiveness.
© The Authors, published by EDP Sciences, 2018
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