Numerical simulation of RCS for carrier electronic warfare airplanes

Abstract

This paper studies the radar cross section (RCS) of carrier electronic warfare airplanes. Under the typical naval operations section, the mathematical model of the radar wave's pitch angle incidence range analysis is established. Based on the CATIA software, considering dynamic deflections of duck wing leading edge flaps, flaperons, horizontal tail, and rudder, as well as aircraft with air-to-air missile, anti-radiation missile, electronic jamming pod, and other weapons, the 3D models of carrier electronic warfare airplanes Model A and Model B with weapons were established. Based on the physical optics method and the equivalent electromagnetic flow method, by the use of the RCSAnsys software, the characteristics of carrier electronic warfare airplanes' RCS under steady and dynamic flights were simulated under the UHF, X, and S radar bands. This paper researches the detection probability of aircraft by radars under the condition of electronic warfare, and completes the mathematical statistical analysis of the simulation results. The results show that: The Model A of carrier electronic warfare airplane is better than Model B on stealth performance and on discover probability by radar detection effectively. ª 2015 The Authors. Production and hosting by Elsevier Ltd. on behalf of CSAA & BUAA. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

RCS Numerical Simulation of Stealth Modified Three-Surface Aircraft

“…The expression of equivalent electromagnetic current method is as follows [20,21] : H stands for incoming magnetic field intensity (A/m) position vector at the middle of the edge and l stands for edge vector.…”

“…The RCS characteristics of the models are numerically simulated in the self-compiled software RCSAnsys [15,16] under the conditions of incoming wave pitch angle from -10° to +10° and X radar band and H-H polarization based on 4 …”

“…The expression of equivalent electromagnetic current method is as follows [20,21] : The RCS of the whole aircraft is the sum of RCS of all the n surface elements and m edges, the superposition expression is as follows: …”

“…pression of equivalent electromagnetic current method is as follows [20,21] : H stands for incoming magnetic field intensity (A/m) ; t r stands for the tor at the middle of the edge and l stands for edge vector. CS of the whole aircraft is the sum of RCS of all the n surface elements and m edges, the n expression is as follows:  stands for the RCS of the aircraft ental Verification mental verification on the effectiveness of the combined method of physical optics and current for aircraft RCS calculation is conducted by the research group, and the numerical esults are published in relative papers, shown in reference [22].…”

“…The stealth performances and aerodynamic characteristics of a conceptually designed aircraft are discussed in reference [14]. A stealth embarked early warning aircraft and an electronic warfare aircraft are conceptually designed and discussed in reference [15] and reference [16] respectively. In reference [17], an aircraft of variable-sweep wings is conceptually designed and the stealth performance of the aircraft is studied.…”