• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Conference on Spaceborne Sensors >MEMS programmable spectral imaging system for remote sensing
【24h】

MEMS programmable spectral imaging system for remote sensing

机译：MEMS可编程光谱成像系统，用于遥感

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

ITT Industries Space Systems Division and Eastman Kodak Company have developed a scalable, data- and power-efficient imaging spectrometer system with a digitally tunable optical filter capability, which enables the rapid selection of high-quality user-defined optical spectral band(s) of interest. The system utilizes a custom-designed, high-contrast diffractive MEMS device with 50 independent spectral switches at the image plane of a double-pass dispersive/de-dispersive spectrometer. The custom MEMS device is based on grating electromechanical system (GEMS) display technology, which provides very high image contrast (2000:1), fast optical switching speeds (< 100 ns), and a large active area with a very high fill factor. The system enables the selection of arbitrary, narrow or wide spectral bands of interest across the visible spectrum with a sampling resolution of 5 nm, without any moving mechanical parts. The resulting optical filter quality and performance is comparable to conventional fixed-band dichroic filters used in current remote sensing systems. The brassboard systems are designed for rapid transition to space-based, electro-optical (EO) remote sensing missions that utilize large format linear TDI scanning sensors and large format area staring arrays in the visible band. This technology addresses numerous capabilities to meet future EO system requirements for rapidly selecting and utilizing a high quality imaging optical bandpass of interest. The system concept provides capability for a >20X scan rate advantage over conventional hyperspectral imagers as a result of the compatibility with TDI scanning. The image quality is comparable to current MSI and HSI systems.
机译：ITT Industries Space Systems部门和Eastman Kodak Company开发了一种可扩展，数据和高效的成像光谱仪系统，具有数字可调的光学滤波器能力，可快速选择高质量的用户定义光谱带兴趣。该系统利用具有50个独立光谱开关的定制设计的高对比度衍射MEMS装置，双通分散/解散光谱仪的图像平面上。自定义MEMS器件基于光栅机电系统（GEMS）显示技术，其提供非常高的图像对比（2000：1），快光开关速度（<100ns）和具有非常高的填充因子的大有源区域。该系统使得能够在可见光谱中选择具有5nm的采样分辨率的可见光谱的任意，窄或宽的光谱带，而没有任何移动的机械部件。所得到的滤光器质量和性能与当前遥感系统中使用的传统固定带二向色滤波器相当。 Brassboard Systems设计用于快速过渡到基于空间的电光（EO）遥感任务，该任务使用大格式线性TDI扫描传感器和在可见频段中的大型格式区域凝视阵列。该技术解决了满足未来EO系统要求的多种能力，以便快速选择和利用感兴趣的高质量成像光学燃道。由于与TDI扫描的兼容性，系统概念提供了传统的超细成像仪的> 20x扫描速率优势的能力。图像质量与当前的MSI和HSI系统相当。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号