摘要
介绍一种利用频率调制光谱技术 ,在自然环境光下进行材料双向反射分布函数 (BRDF)的测量方法 用该方法对若干墙面靶材料的反向散射双向反射分布函数进行了测量 ,并给出了被测材料的BRDF拟合函数参量 测量环境模拟了以墙面材料为反射靶的激光现场遥感探测气体测量环境 。
The method to measure the Bidirectional Reflectance Distribution Function (BRDF) of selected surface materials was developed with Frequency-Modulation Spectroscopy (FMS) using a Tunable Diode Laser (TDL) under strong environmental light influence such as natural illumination and artificial light. A simulated in situ BRDF measurement experiment was demonstrated with the improved method and the BRDF of several surface materials of wall as topographic target for laser remote detection of toxic and hazardous gases was obtained on this understanding that the angle of incidence is always coincident with the angle of reflection. The samples could be fitted to a function with two parameters. These results are suitable for designing laser remote detection instrument of gas of this type.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2003年第4期473-476,共4页
Acta Photonica Sinica
基金
山西省科技攻关项目 (0 0 2 0 96)
山西省留学基金(2 0 0 1 10 2 0 0 3 12 )资助项目
