A METHOD FOR SATELLITE IDENTIFICATION OF SURFACE-TEMPERATURE FIELDS OF SUBPIXEL RESOLUTION
A METHOD FOR SATELLITE IDENTIFICATION OF SURFACE-TEMPERATURE FIELDS OF SUBPIXEL RESOLUTION
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DOI：
10.1016/0034-4257(81)90021-3
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发表时间：
1981-01-01
影响因子：
13.5
通讯作者：
DOZIER, J
中科院分区：
文献类型：
--
作者：
DOZIER, J
在热红外光谱区，从包含多个通道的卫星上测量亚像素空间分辨率的表面辐射温度场是可能的。由于普朗克函数在不同波长下的不同响应，在两个通道中测量的辐射温度可以用来自两个温度场的贡献来表示，每个温度场占据像素的一部分，其中这些部分不一定是连续的。所得的联立非线性方程可以针对所占用的像素的互补部分和一个未知温度来求解。在可以假设具有相同目标温度和相同背景温度的两个相邻像素中，可以找到两个未知温度。
It is possible to measure surface radiant temperature fields of subpixel spatial resolution from satellites which contain more than one channel in the thermal infrared spectral region. Because of the different response of the Planck function at different wavelengths, the radiant temperatures measured in two channels may be expressed in terms of contributions from two temperature fields, each occupying a portion of the pixel, where the portions are not necessarily contiguous. The resulting simultaneous nonlinear equations may be solved for the complimentary portions of the pixel occupied and one unknown temperature. In two adjacent pixels which can be assumed to have the same target temperatures and same background temperatures, both unknown temperatures may be found.