直管斜切式方转圆进气道的电磁散射特性及抑制技术的实验研究

从进气道的雷达散射截面着手，通过实验研究了直管斜切式方转圆进气道在各种状态下的电磁散射特性，分析了终端、攻角对其电磁散射特性的影响，并进一步提出了该型进气道的雷达截面减缩措施，研究了吸波材料贴敷长度、贴敷位置以及消波器等对雷达截面减缩效果的影响。为有效改善该型进气道的电磁散射特性提供了技术依据。

EXPERIMENTAL RESEARCH OF RCS AND RCSR OF A STRAIGHT RECTANGLE TO ROUND SCOOP INLET

The Radar Cross Section (RCS) of a straight rectangle to round scoop inlet has been investigated. It includes the influences of the attack angle and termination on the electromagnetic scattering characteristics. Then the measurements of the Radar Cross Section Reduction (RCSR) of the inlet are put forward. At the same time, the effects of length, position of absorbing wave material and absorbing wave grille on RCSR are further studied. As the results indicate, the measurements suggested here have put very distinct effect on decreasing RCS of the inlet. This paper affords a technological basis for efficiently improving the low observable inlets.