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首页> 外文会议>American Helicopter Society Flight controls and crew systems design technical specialists' meeting >Rotorblade Radar Sensor for Degraded Visual Environments
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Rotorblade Radar Sensor for Degraded Visual Environments

机译：用于退化视觉环境的Rotorblade雷达传感器

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The ability to view the outside world under degraded visual conditions significantly enhances the operational role ofrna helicopter. The natural solution to this problem is the utilization of a radar system to penetrate the environmentrnwith enough resolution to permit low-level flight. However, because the radar has been considered an “add-on” tornthe helicopter, several factors have prevented this solution from being implemented, namely: weight, location, andrncost. It is the purpose of this paper to present a lightweight low cost scanning radar implementation utilizing therninboard section of the rotor-blade surface as a microwave reflective element. By incorporating thin film microstriprnreflectarray technology either as an appliqué or as a layer in a composite blade, the reflective surface adds minimallyrnto the weight and volume of the helicopter installation while preserving the aerodynamic qualities of these surfaces.rnIn order to minimize azimuth beam motion due to blade twist, the inboard portion of a rigid rotor blade is utilized asrnthe reflective surface. For enhanced reliability, a distributed electronic feed can be utilized to illuminate the bladernwithout the requirement for a rotary joint.
机译：在退化的视觉条件下查看外部世界的能力大大增强了rna直升机的作战作用。解决此问题的自然方法是利用雷达系统以足够的分辨率穿透环境，以允许低空飞行。但是，由于雷达被认为是直升机的“附加”部件，因此有多种因素阻碍了该解决方案的实施，即：重量，位置和成本。本文的目的是提出一种利用转子叶片表面的内侧部分作为微波反射元件的轻便低成本扫描雷达实施方案。通过将薄膜微带反射阵列技术作为贴花或复合叶片中的一层应用，反射表面在增加直升机安装重量和体积的同时最小化了其重量，同时又保留了这些表面的空气动力学特性。叶片扭曲时，刚性转子叶片的内侧部分用作反射面。为了提高可靠性，可以使用分布式电子馈源来照亮刀片，而无需旋转接头。

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