首先对光谱信号进行预处理并抽取了多个关键性的特征参数，通过降维分析得到一组新的特征向量。
The spectrum signal was pretreated and several key characteristic parameters were extracted and then a set of new feature vector was obtained by reducing the dimensions.
给出并比较了煤油和柴油三维荧光谱指纹图及其统计特征参数，在此基础上可以实现基于荧光谱指纹图统计特征的油种鉴别。
Fingerprints of kerosene and diesel oil are presented as examples comparing each other. Oil identification can be completed based on statistic features of their fluorescent fingerprint.
水质可见光近红外遥感监测是通过研究水体反射光谱特征与水质参数之间的关系，建立水质参数反演算法进行的。
The research object of the present paper is the water quality of Han Shiqiao wetland water. Water spectrum and quality parameters were measured on the site and in the lab.
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