Method for performing automated in-scene based atmospheric compensation for multi-and hyperspectral imaging sensors in the solar reflective spectral region
    1.
    发明授权
    Method for performing automated in-scene based atmospheric compensation for multi-and hyperspectral imaging sensors in the solar reflective spectral region 有权
    用于对太阳能反射光谱区域中的多光谱和高光谱成像传感器进行自动场景大气补偿的方法

    公开(公告)号:US06909815B2

    公开(公告)日:2005-06-21

    申请号:US10356060

    申请日:2003-01-31

    摘要: A method of automatically compensating a multi- or hyper-spectral, multi-pixel image for atmospheric effects, comprising resolving a plurality of spectrally-diverse pixels from the image, determining a spectral baseline from the spectrally-diverse pixels, determining a statistical spectral deviation of the spectrally-diverse pixels, normalizing the statistical spectral deviation by applying a scale factor, and compensating image pixels with both the spectral baseline and the normalized spectral deviation. Another embodiment features a method of automatically determining a measure of atmospheric aerosol optical properties using a multi- or hyper-spectral, multi-pixel image, comprising resolving a plurality of spectrally-diverse pixels from the image, determining a statistical spectral deviation of the spectrally-diverse pixels, correcting the statistical spectral deviation for non-aerosol transmittance losses, and deriving from the statistical spectral deviation one or more wavelength-dependent aerosol optical depths. A final embodiment features a method of automatically determining a measure of atmospheric gaseous optical properties using a multi- or hyper-spectral, multi-pixel image, comprising resolving a plurality of spectrally-diverse pixels from the image, determining a statistical spectral deviation of the spectrally-diverse pixels, and deriving from the statistical spectral deviation wavelength-dependent gaseous optical depths.

    摘要翻译: 一种自动补偿用于大气效应的多光谱或超光谱多像素图像的方法,包括从图像中分辨多个光谱不同的像素,从光谱不同的像素确定光谱基线,确定统计光谱偏差 的光谱不同的像素,通过应用比例因子来归一化统计光谱偏差,以及补偿具有光谱基线和归一化光谱偏差的图像像素。 另一个实施例的特征在于一种使用多或多光谱多像素图像自动确定大气气溶胶光学特性的测量的方法,包括从图像中分辨出多个光谱不同的像素,确定光谱的统计光谱偏差 不同的像素,校正非气溶胶透射损失的统计光谱偏差,以及从统计光谱偏差导出一个或多个依赖于波长的气溶胶光学深度。 最终实施例的特征在于一种使用多或多光谱多像素图像自动确定大气气体光学特性的测量的方法,包括从图像中分辨出多个光谱不同的像素,确定图像的统计光谱偏差 光谱多样的像素,并从统计光谱偏差波导依赖的气体光学深度导出。

    Combustor control based on fuel modulation and passive optical sensors
    3.
    发明授权
    Combustor control based on fuel modulation and passive optical sensors 有权
    基于燃料调节和无源光学传感器的燃烧器控制

    公开(公告)号:US08371102B1

    公开(公告)日:2013-02-12

    申请号:US12393595

    申请日:2009-02-26

    IPC分类号: F02C9/00 F02G3/00 G01K11/30

    CPC分类号: F02C9/28 F05D2270/804

    摘要: A system for controlling the uniformity of combustion over a range of operating conditions in a combustor with a plurality of fuel nozzles. The system includes a number of optical sensors, each sensor comprising an optical probe that collects naturally occurring optical radiation emanating from a segment of the combustor or combustor exhaust, and at least one transducer that receives the radiation collected by the probes, compares the intensity of collected radiation from each sensor in a plurality of spectral pass-bands that are indicative of the fuel/air ratio in the combustor segments, and produces output signals that are indicative of the state of combustion in the combustor segments. A control system receives the output signals from the transducers and in response controls the fuel flow to the fuel nozzles to achieve an output from each of the sensors that has been determined to be indicative of a predetermined state of combustion.

    摘要翻译: 一种用于在具有多个燃料喷嘴的燃烧器中在一定范围的操作条件下控制燃烧均匀性的系统。 该系统包括多个光学传感器,每个传感器包括收集从燃烧室或燃烧器排气的一段发出的天然存在的光辐射的光学探头和接收由探针收集的辐射的至少一个换能器, 在多个光谱通带中收集来自每个传感器的辐射,其表示燃烧器段中的燃料/空气比,并且产生指示燃烧器段中的燃烧状态的输出信号。 控制系统接收来自换能器的输出信号,并响应于控制到燃料喷嘴的燃料流量,以实现已被确定为指示预定燃烧状态的每个传感器的输出。