Electromagnetic radiation situation sensing prediction method and system in complex electromagnetic environment

Abstract

The invention discloses an electromagnetic radiation situation awareness prediction method and system in a complex electromagnetic environment. The method comprises the following steps: S1, giving a situation awareness prediction scene; S2, establishing a local coordinate system, and determining a mapping relation between the longitude and the latitude of the airplane in the local coordinate system; S3, setting the position and direction of the receiving antenna on each airplane relative to the airplane, and setting the position and direction of the transmitting antenna on each ship relative to the ship; S4, extracting antenna far-field gain data from the far-field pattern of the antenna; S5, generating the position and direction of the aircraft at each moment; S6, generating field intensity distribution on the vertexes of the regional grids; S7, calculating space loss L; S8, dynamically displaying the field distribution in the area along with the propulsion of the simulation moment; S9, calculating a transmitting antenna gain and a receiving antenna gain; S10, calculating the sensing power of each airplane. According to the invention, the problem that the traditional electromagnetic propagation model does not consider the spatial gain distribution of the antenna and cannot calculate the change of electromagnetic propagation along with time is solved.

Description

technical field [0001] The present invention relates to electromagnetic radiation, in particular to a method and system for situation awareness prediction of electromagnetic radiation in a complex electromagnetic environment. Background technique [0002] An aircraft performing flight missions in a fixed airspace is subject to interference from transmitting antennas such as radars mounted on a ship on the sea surface, especially high-power transmitting equipment, which is an important problem that must be faced during the flight process of the aircraft. It is particularly important to perceive and predict the electromagnetic radiation situation in complex electromagnetic environments affected by the installation of transmitting antennas on ships. [0003] However, the current technology has the following problems: (1) It is difficult to accurately establish the radiation situational awareness model during the entire flight; (2) It is difficult to analyze the application scen...

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Problems solved by technology

[0003] However, the current technology has the following problems: (1) It is difficult to accurately establish the radiation situational awareness model during the entire flight; (2) It is difficult to analyze the application scenarios of a large number of transmitting and receiving antennas with commonly used analysis methods; (3) It is impossible to consider Influence of Receiver and Transmitter Antenna Polarization on Electromagnetic Radiation Situational Awareness Results

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