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首页> 外文会议>Conference on emerging digital micromirror device based systems and applications; 20090128; San Jose, CA(US) >Two-Band DMD-Based Infrared Scene Simulator
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Two-Band DMD-Based Infrared Scene Simulator

机译：基于两波段DMD的红外场景模拟器

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摘要

OPTRA is developing a two-band midwave infrared (MWIR) scene simulator based on digital micromirror device (DMD) technology; this simulator is intended for training various IR tracking systems that exploit the relative intensities of two separate MWIR spectral bands. Our approach employs two DMDs, one for each spectral band, and an efficient optical design which overlays the scenes reflected by each through a common telecentric projector lens. Other key components are a miniature thermal source and a series of dichroic beamsplitters. Through the use of pulse width modulation, we are able to control the relative intensities of objects simulated by the two channels thereby enabling realistic scene simulations of various targets and projectiles approaching the tracking system. Performance projections support radiant intensity levels, resolution, bandwidth, and scene durations that meet the requirements for a host of IR tracking test scenarios. In this paper we summarize the results of a breadboard design, build, and test which establishes the feasibility of our approach. We also present portions of the preliminary design of a prototype two-band simulator which will be built and tested over the next year.
机译：OPTRA正在开发基于数字微镜设备（DMD）技术的两波段中波红外（MWIR）场景模拟器；该模拟器旨在训练各种利用两个单独的MWIR光谱带的相对强度的IR跟踪系统。我们的方法采用了两个DMD，每个光谱带一个，以及一种有效的光学设计，该设计可以覆盖通过普通远心投影仪镜头反射的场景。其他关键组件是微型热源和一系列二向色分束器。通过使用脉冲宽度调制，我们能够控制由两个通道模拟的对象的相对强度，从而实现逼近跟踪系统的各种目标和弹丸的真实场景模拟。性能预测支持满足许多IR跟踪测试方案要求的辐射强度水平，分辨率，带宽和场景持续时间。在本文中，我们总结了面包板设计，构建和测试的结果，这些结果确定了我们方法的可行性。我们还将介绍原型两频段模拟器的初步设计的部分内容，该原型将在明年构建和测试。

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