In-formation radar far field prediction method taking regard of near sea surface atmosphere environment influence

Abstract

The invention discloses an in-formation radar far field prediction method taking regard of near sea surface atmosphere environment influence. The method comprises steps that (1), according to the in-formation radiation source radar mounting height position, radar initial field distribution is calculated; (2), according to radar signal characteristics, a near sea surface atmosphere refractivity model is established; (3), according to the relative position of a radiation source radar and an observation point and the atmosphere refractivity model on a formation radar propagation path, a formation radar electromagnetic signal forward propagation model is established, and propagation attenuation factors taking regard of near sea surface atmosphere influence are calculated through utilizing a two-dimensional parabola algorithm; and (4), lastly, in combination with shipborne radar directional diagram characteristics, an electromagnetic environment of the in-formation far field is solved, and prediction field intensity of the observation point is calculated. The method is advantaged in that radar far field intensity at the observation point is predicted through establishing the electromagnetic signal forward propagation model taking regard of influence of near sea level rough sea surface reflection and near sea surface atmosphere environment parameters, environment parameters are provided for formation electromagnetic compatibility analysis, and the method is applicable to electromagnetic interference analysis.

Description

Technical field [0001] The invention belongs to the field of ship electromagnetic compatibility prediction, and specifically relates to a far-field prediction method for radar in formations considering the influence of the atmospheric environment on the offshore surface. Background technique [0002] With the development of new naval equipment, ship formations have become the main use of naval ships to give full play to the combat capabilities of various ships. With the increase in the transmission power of various radars, the expansion of the frequency spectrum, and the continuous increase in the number of frequency equipment, the electromagnetic environment in the maritime formation is becoming more and more complicated, and the problem of electromagnetic interference between platforms has become extremely complicated. Otherwise, once there is electromagnetic interference, it will inevitably destroy the overall combat capability of the formation and seriously affect the naval's...

AI Technical Summary

Problems solved by technology

With the increase of the transmission power of various radars, the expansion of the frequency spectrum, and the continuous increase in the number of frequency equipment, the electromagnetic environment in the maritime formation is becoming more and more complex, and the electromagnetic interference between platforms has become extremely complicated.

Otherwise, once there is electromagnetic interference, it is bound to destroy the overall combat capability of the formation and seriously affect the navy's implementation of combat missions

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