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Adapting high-resolution speckle imaging to moving targets and platforms

机译:使高分辨率散斑成像适应移动的目标和平台

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High-resolution surveillance imaging with apertures greater than a few inches over horizontal or slant paths at optical or infrared wavelengths will typically be limited by atmospheric aberrations. With static targets and static platforms, we have previously demonstrated near-diffraction limited imaging of various targets including personnel and vehicles ova horizontal and slant paths ranging from less than a kilometer to many tens of kilometers using adaptations to bispectral speckle imaging techniques1'2' . Nominally, these image processing methods require the target to be static with respect to its background during the data acquisition since multiple frames are required. To obtain a sufficient number of frames and also to allow the atmosphere to decorrelate between frames, data acquisition times on the order of one second are needed. Modifications to the original imaging algorithm will be needed to deal with situations where there is relative target to background motion. In this paper, we present an extension of these imaging techniques to accommodate mobile platforms and moving targets.
机译:在光学或红外波长处,水平或倾斜路径上的孔径大于几英寸的高分辨率监视成像通常会受到大气像差的限制。借助静态目标和静态平台,我们先前已展示了对双目标的近衍射有限成像,包括使用双光谱散斑成像技术1'2'对水平和倾斜范围从不到一公里到数十公里的人员和车辆。通常,由于需要多个帧,因此这些图像处理方法要求目标在数据获取期间相对于其背景是静态的。为了获得足够数量的帧并且还允许气氛在帧之间去相关,需要大约一秒的数据获取时间。将需要对原始成像算法进行修改,以处理目标相对于背景运动的情况。在本文中,我们提出了这些成像技术的扩展,以适应移动平台和移动目标。

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