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隐身技术属于无源干扰,是有效的抗雷达技术手段.目前应用最广的是“反雷达信号隐身”.实现反雷达隐身的途径有三种:(1) 改变飞机机身结构与外型;(2) 在飞行器外表面涂敷雷达电磁波吸收材料;(3) 用高强度、低比重的复合材料制作飞行器结构部件.随着隐身技术的发展,各种反隐身技术也应运而生.采用脉冲压缩技术、多波段雷达或频率捷变技术、降低噪声,以及采用其他一些非电子反隐身技术,都能有效地提高雷达效能.
Stealth technology is passive interference, is an effective anti-radar technology means.Currently the most widely used is “anti-radar signal stealth.” There are three ways to achieve anti-radar stealth: (1) to change the aircraft fuselage structure and appearance; ( 2) Application of radar electromagnetic wave absorbing material on the outer surface of the aircraft; 3) Manufacture of structural parts of aircraft with high strength and low specific gravity composite materials.With the development of stealth technology, various anti-stealth technologies have also come into being.Using pulse compression Technology, multi-band radar or frequency agile techniques, noise reduction, and other non-electronic anti-stealth technologies can effectively improve radar performance.