雷达隐身技术就是飞机雷达散射截面的减缩技术,因而准确分析、计算和测量飞机的雷达散射截面就是整个飞机隐身设计的基础。雷达散射截面也成为飞机隐身设计中最为重要的概念,其英文为Radar cross section,缩写就是我们常见的RCS。雷达散射截面是度量目标在雷达波照射下所产生的回波强度的一种物理量。从直观的角度来讲,任何...
雷达散射截面积(Radar Cross Section, RCS)是目标在雷达接收方向上反射雷达信号能力的度量,一个目标的RCS等于单位立体角目标在雷达接收天线方向上反射的功率(每单独立体角)与入射到目标处的功率密度(每平方米)之比。 准确计算RCS,是描述飞机的雷达隐身能力强弱的关键所在,也是飞机隐身设计的大前提! 这个难题的顺利解决...
The Lockheed engineers developed a computer program which could calculate the RCS (Radar Cross-Section) of several proposed models. After this, wooden models were made, of which the RCS was tested on real radars. Mid 1975 DARPA invited Lockheed, Northrop and McDonnel Douglas to develop a XST ...
Its unique angular and faceted shape, combined with radar-absorbent materials, allowed it to evade radar detection and operate with a reduced radar cross-section. The aircraft's black color and its ability to fly at extremely low altitudes further aided its stealth capabilities....
was initially developed by Russian mathematician Pyotr Ya. Ufimtsev in 1964. Theorizing that the radar return of a given object was not related to its size but rather its edge configuration, he believed that he could calculate the radar cross-section across a wing's surface and along its edge...
Ken flew the aircraft over a radar test facility, which may have been at Site 4 or at Area 51 itself. It was on one of these tests that HB1002 had its first malfunction. Ken was flying against a Radar facility to measure nose on (zero) Cross Section when he engaged the autopilot....
The "Martians" are maintainers who lay on the radar-absorbent coating in Holloman's Material Application and Repair Section. It's meticulous work, gluing sheets and strips of radar-absorbent material to the aircraft with a paste that is equally radar-absorbent. "From a Martian's standpoint, ...
而如果降低飞机对雷达发射电磁波的反射率,那么就能够缩减雷达对飞机的探测距离,进而降低雷达探测到飞机的可能性,从而能够实现飞机对的“隐身”。目标物体对雷达波的反射截面积(Radar cross-section,RCS),就是衡量雷达隐身技术效率的指标。雷达隐身技术的最终目的,就是减少雷达波的反射截面积。
而如果降低飞机对雷达发射电磁波的反射率,那么就能够缩减雷达对飞机的探测距离,进而降低雷达探测到飞机的可能性,从而能够实现飞机对的“隐身”。目标物体对雷达波的反射截面积(Radar cross-section,RCS),就是衡量雷达隐身技术效率的指标。雷达隐身技术的最终目的,就是减少雷达波的反射截面积。