作物冠层高光谱信息采集中光源的设计与优化  

Design and Optimization for Light Source on High Spectral Information Collection of Crop Canopy

作　　者：张晓东[1] 毛罕平[1] 周莹[1] 左志宇[1] 高洪雁[1] 

机构地区：[1]江苏大学现代农业装备与技术省部共建教育部重点实验室,江苏镇江212013

出　　处：《安徽农业科学》2011年第31期19633-19635,共3页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目(61075036);中国博士后科学基金(20100481097);江苏高校优势学科建设工程资助项目(苏财教﹝2011﹞8号);江苏省农业装备与智能化高技术研究重点实验室项目(BM2009703);江苏省高校自然科学基础研究重大项目(10KJA210010);江苏大学高级专业人才基金项目(10JDG081);江苏大学博士后基金项目(201009)

摘　　要：[目的]设计并优化光源以克服环境因素对光谱数据的影响,精确获取作物冠层的光谱信息。[方法]通过构建光谱检测系统,利用均匀光照箱的人工光源为光谱采集提供稳定的检测环境;利用卤素灯和D65标准光源组成可见光-近红外光源系统。[结果]通过三因子二次回归正交试验得到了光源系统的光距、物距和直径的最优结构参数。[结论]光谱检测系统能够克服外界环境因素对检测的影响,实现对作物冠层光谱信息的有效采集和光谱特征的准确提取。[Objective] The aim was to design and optimize light source,so as to overcome influence of environment factors to spectral data and accurately obtain spectral data of crop canopy.[Method] The artificial light in uniform light box was used to provide stable detection environment for spectral collection,the visible-near infrared light source system consists of the halogen lamp and D65 standard light source group.[Result] The optimal structure parameters on the light distance,object distance and diameter of light source system were obtained by the three factors quadratic regression orthogonal test.[Conclusion] The spectroscopic measuring system could overcome influence of environment factors to the detection,and realize the effective collection of canopy spectral information and the accurate extraction of spectral features.

关 键 词：高光谱 信息采集 均匀光照系统 正交试验 

分 类 号：S121[农业科学—农业基础科学] O657.3[理学—分析化学]