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作战飞机受到由雷达控制的防空系统的威胁,减少雷达特征可改进飞机穿越敌人防空系统的能力。利用电磁波从飞机反向散射的原理,可以设计一种低雷达特征飞机,或至少可以改进现正服役飞机的战术性能,以成功地避开敌人的防空系统。提出了一种用于估算包含外挂物的复杂军用飞机外形特征雷达的理论方法。雷达特征是由预定的雷达观测方向的雷达横截面来确定。监视雷达特定方向的雷达横截面用镜面几何光学和物理光学与小于雷达波长的雷达反射特性的估值相结合的方法来确定。几何输入等于通常的空气动力面元法,所以,空气动力表面离散化不需变更就可使用,这样便可得到挂弹或不挂弹战斗机在典型雷达照射下的雷达特征。
Combat aircraft are threatened by radar-controlled air defense systems and reducing radar characteristics improves the ability of the aircraft to cross the enemy’s air defense system. Using the principle of backscattering electromagnetic waves from the aircraft, a low-radar feature aircraft can be designed or at least improved the tactical performance of the aircraft currently in service to successfully evade enemy air defense systems. A theoretical method is proposed for estimating the radar profile of a complex military aircraft that contains a plug-in. Radar characteristics are determined by the radar cross section of the intended radar observation direction. Radar cross sections for monitoring radar in a particular direction are determined by the combination of specular geometry optics and physical optics with estimates of radar reflection characteristics less than the radar wavelength. Geometric input is equal to the usual aerodynamic facet method, so aerodynamic surface discretization can be used without change, so you can get a bullet or non-pop-up fighter radar radar characteristics of the typical.