光谱分类 meaning in Chinese

spectral classification

Automated spectral classification of broad - line and narrow - line active galactic nuclei based on k - nearest neighbour
近邻方法的窄线与宽线活动星系核的自动光谱分类
3 . according to the algorithm of attribute reduction , auto - classification system about stellar spectrum data is designed and implemented through using visual foxpro 6 . 0 , which automatically extract rules from stellar spectrum
3 .依据上述属性约简算法，采用visualfoxpro6 . 0数据库管理系统，设计与实现了恒星光谱数据自动分类系统，实现了恒星光谱分类规则的自动提取。
Thirdly , in the multi - spectral , there are some facts that different objects have the same spectrum and the same objects have different spectrum but they are in the region having different landform so that we can deduce the effect of the fact by segmenting the image according to the texture feature that reflect the landform into blocks in advance and then classifying each pixel according to its corresponding block spectrum information
第三,实际多光谱图像中存在着不少同物异谱和同谱异物现象,而它们往往处于不同的地形地貌之中,因此事先依据反映宏观地形地貌的纹理特征将图像分块,再有针对性地进行地物光谱分类是能够降低它对分类精度的影响。