Research on Modeling of Signal Field Strength Received by Sea Skimming Vehicle

Wireless link quality is one of the key factors to ensure efficient communication and accurate navigation of sea skimming Vehicle. The reflection and scattering of incident radio waves by rough sea surface make the wireless channel experienced by the sea-skimming vehicle receiving signals have certain randomness. In order to quantitatively analyze the electric field strength of received signal, this paper presents a method for calculating the field strength of ultra-low altitude sea-skimming vehicle. First, a 3D electromagnetic simulation model of rough sea surface under typical sea states is established. Second, the calculation method suitable for the field strength prediction of the target front door above the rough sea surface is analyzed and demonstrated. Finally, by taking five typical pulse signals as examples, the field strength is calculated. The simulation results show that the proposed method can effectively calculate the field strength of the received signal and can provide technical support for the design of sea surface wireless link and the evaluation of receiver electromagnetic environment adaptability.