The simulation of HF channel of sea surface communications

Jihua Lu¹

E.E., Beijing Institute of Technology, 5^th Zhongguancun South Street Haidian District, China, luijhua@bit.edu.cn:13811052978

Abstracts：

HF communication over oceans can achieve long distance, low cost communications and it is one of the most important communication manners in all ocean communication manners. Due to the reflection of radio wave, the conductivity of sea water and the complex characteristics of sea surface, H.F. Communication systems over oceans however can be very economical but usually exhibited restricted reliability and often less desirable quality.

To ensure the reliability of communications, high reliable radio channel modeling is mostly needed. This paper describes several simulations on sea surface communications in HF band.

The simulations based on several China cities, Select nine classical frequency points in H.F. band, set the longitude and latitude, antenna heights of both the transmitter and receiver. The results are losses along the paths, the probability of communication requirements, etc. The author considered both the sky wave and the ground-wave modeling. The ground-wave modeling references Rec. ITU-R P.368-9 and the sky-wave modeling references ICEPAC based on REC533, etc. The simulation results made it clear that the proposed H.F. model matches the actual communication conditions of china east and south sea.