Research On Radio Wave Propagation Model Of AIS Sea

Now, with the continuous development and improvement of radio wave technology, radio wave propagation model used for the study of radio wave propagation plays an important role in the field of radio communications. How to better help the radio wave transmission model to predict the propagation of radio waves has important practical significance. In order to make maritime radio communication more smooth, meet the demand for maritime radio communications, which we need to work out the precise maritime radio wave transmission model to predict the transmission of radio waves at sea.Firstly, the radio wave technology to do a brief introduction, and then the basic theory of radio wave propagation and transmission of radio waves several common models are relevant, compare and analyze the performance by transferring several models, summed Longley-Rice propagation model is more suitable for the study of the transmission of radio waves on the sea.This paper focuses on the Longley-Rice model, the model of radio wave propagation model as the sea. By the waters of the measured data associated with a particular simulation software Matlab simulation data analysis and comparison of verification, the Longley-Rice model is used for the transmission of radio waves when the sea surface, the error is relatively low, higher accuracy.Based on the waters of the sea to study specific radio wave transmission model, on the Longley-Rice model is modified, has been applied to study different waters universal radio wave propagation model. Finally, the research paper to summarize, analyze, summarize, the direction of future research and exploratory research description, and gives relevant prospects.