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首页> 外文会议>Conference on Technologies for Synthetic Environments: Hardware-in-the-Loop Testing VIII Apr 21-22, 2003 Orlando, Florida, USA >Concepts using optical MEMS array for LADAR scene projection
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Concepts using optical MEMS array for LADAR scene projection

机译：使用光学MEMS阵列进行LADAR场景投影的概念

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摘要

Scene projection for HITL testing of LADAR seekers is unique because the 3rd dimension is time delay. Advancement in AFRL for electronic delay and pulse shaping circuits, VCSEL emitters, fiber optic and associated scene generation is underway, and technology hand-off to test facilities is expected eventually. However, size and cost currently projected behooves cost mitigation through further innovation in system design, incorporating new developments, cooperation, and leveraging of dual-purpose technology. Therefore a concept is offered which greatly reduces the number (thus cost) of pulse shaping circuits and enables the projector to be installed on the mobile arm of a flight motion simulator table without fiber optic cables. The concept calls for an optical MEMS (micro-electromechanical system) steerable micro-mirror array. IFOV's are a cluster of four micro-mirrors, each of which steers through a unique angle to a selected light source with the appropriate delay and waveform basis. An array of such sources promotes angle-to-delay mapping. Separate pulse waveform basis circuits for each scene IFOV are not required because a single set of basis functions is broadcast to all MEMS elements simultaneously. Waveform delivery to spatial filtering and collimation optics is addressed by angular selection at the MEMS array. Emphasis is on technology in existence or under development by the government, its contractors and the telecommunications industry. Values for components are first assumed as those that are easily available. Concept adequacy and upgrades are then discussed. In conclusion an opto-mechanical scan option ranks as the best light source for near-term MEMS-based projector testing of both flash and scan LADAR seekers.
机译：LADAR导引头的HITL测试的场景投影是独一无二的，因为第3维是时间延迟。用于电子延迟和脉冲整形电路，VCSEL发射器，光纤和相关场景生成的AFRL正在进行改进，最终有望将技术移交给测试设施。但是，当前预计的尺寸和成本将通过系统设计的进一步创新，整合新的开发，合作和双重用途技术来降低成本。因此，提供了一种概念，该概念极大地减少了脉冲整形电路的数量（因而降低了成本），并使投影机无需光纤即可安装在飞行模拟器台的移动臂上。该概念要求光学MEMS（微机电系统）可控微镜阵列。 IFOV是由四个微镜组成的群集，每个微镜都以适当的延迟和波形为基础，通过唯一的角度转向选定的光源。这种源的阵列促进了角度到延迟的映射。不需要为每个场景IFOV使用单独的脉冲波形基础电路，因为同时将一组基础功能同时广播到所有MEMS元件。通过MEMS阵列上的角度选择可解决将波形传递到空间滤波和准直光学系统的问题。重点是政府，其承包商和电信行业已存在或正在开发的技术。首先假定组件的值是易于获得的值。然后讨论概念的充分性和升级。总而言之，光机械扫描选项被认为是对基于闪光灯的LADAR导引头和扫描LADAR导引头进行基于MEMS的近期投影仪测试的最佳光源。

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