Research on the propagation of radio waves in the marine environment

Since the marine environment is more complex than the terrestrial environment, a Multi-parameters model of Reflection Coefficient (ORPM) is established to study the propagation of radio waves in the marine environment.By comparing reflection coefficients off a turbulent ocean and a calm ocean, it is found that the turbulent and reflection coefficient are inversely related and the finding is correspond with actual situation.Then do research on the propagation of high frequencies (HF) radio in the atmosphere. By combining it with ORPM, the Model for the Maximum Number of Hops (NOHF) is established to figure out the maximum number of hops the signal can take before its strength falls below a usable signal-to noise ratio (SNR). Finally the sensitivity analysis of ORPM and NOHF is performed, and the results are clear.