首页> 外文会议>Unmanned Systems Technology IX; Proceedings of SPIE-The International Society for Optical Engineering; vol.6561 >Angularly Sensitive Wide Field of View Micro-Sensor Construction and New Processing Paradigm: Task Oriented Optical Processing
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Angularly Sensitive Wide Field of View Micro-Sensor Construction and New Processing Paradigm: Task Oriented Optical Processing

机译:角度敏感的宽视野微传感器构造和新的处理范例:面向任务的光学处理

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Discussed is a novel method of manufacturing an Angularly Sensitive Micro-Sensor (ASMS). The process employed utilizes excimer laser ablation to write out the microlens on the curved surface of the master lens. This master lens element is manufactured with fused optical fibers, such that if the registration is maintained, the light from each microlens goes via the fiber to a specific pixel in a focal plane array (FPA). Such a system allows for a field of view greatly in excess of 180 degrees. If local imaging is required for specific tasks the fiber can send the angularly localized image to a pixel set. Image fusing may then be required. Infrared and ultraviolet versions can be manufactured. A more general application allows for a multi-spectral sensor. After one ASMS is constructed, then an inverse mask (mould) can be created and the monolithic sphere, retaining its registration, is covered in liquid plastic and placed into the mould and the exact replica is re-created. The advantage is low cost and rapid manufacture of the ASMS.rnThe paper focuses on this sensor as a Task-Oriented Optical Processing (TOP) system; where the processing is performed primarily by the optics leaving a greatly reduced requirement for an electronic processor. This is a critical issue for micro, insect sized platforms where the weight budget is devoted to the energy and propulsive systems. An important aspect of this approach is that the sensor samples amplitude and angular space rather than amplitude and position space as conventional sensors currently do. This makes the ASMS processing paradigm completely different from conventional image processing. For example using several fiber/pixel elements to comprise a UV polarimeter allows for simple storage and processing of vector elements for simple navigation. The home position may be treated as "Look up table" reference matrix (RM). That base table can be modified to account for the passage of time (and hence change in solar position from the UV polarimeter, as appropriate). A second "real time" travel matrix (TRM) is then created. Eventually, a target matrix (TAM) would also be created. Simply driving changes in the TRM towards the RM would be used for navigating the return trip back to home base. When the difference between the two matrices goes to a null matrix the platform would be home.
机译:讨论了一种新颖的制造角度敏感型微传感器(ASMS)的方法。所采用的过程利用准分子激光烧蚀在主透镜的曲面上写出微透镜。该主透镜元件是用熔融光纤制造的,因此如果保持对准,来自每个微透镜的光将通过光纤到达焦平面阵列(FPA)中的特定像素。这样的系统允许视野大大超过180度。如果特定任务需要局部成像,则光纤可以将角度局部图像发送到像素集。然后可能需要图像融合。可以生产红外线和紫外线版本。更通用的应用允许使用多光谱传感器。构造完一个ASMS之后,可以创建一个反向蒙版(模具),并将保留其配准的整体球体覆盖在液态塑料中,然后放入模具中,并重新创建精确的复制品。优点是ASMS的低成本和快速制造。rn本文将这种传感器作为面向任务的光学处理(TOP)系统进行研究。其中主要由光学器件执行处理,从而大大减少了对电子处理器的需求。对于微型昆虫大小的平台而言,这是一个关键问题,其重量预算专门用于能源和推进系统。这种方法的一个重要方面是,传感器对幅度和角度空间进行采样,而不是像常规传感器那样对幅度和位置空间进行采样。这使得ASMS处理范例与常规图像处理完全不同。例如,使用数个光纤/像素元素来构成UV旋光仪,可以对矢量元素进行简单的存储和处理,以实现简单的导航。原始位置可以视为“查找表”参考矩阵(RM)。可以修改该基表以考虑时间的流逝(并相应地根据紫外线偏振计更改太阳位置的变化)。然后创建第二个“实时”旅行矩阵(TRM)。最终,还将创建目标矩阵(TAM)。只需将TRM中的更改驱动到RM,即可用于将回程导航回本垒。当两个矩阵之间的差变为零矩阵时,平台将成为宿主。

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