【作者】 何丽； 叶一东； 陈天江；

【Author】 HE Li,YE Yi-dong,CHEN Tian-jiang(Institute of Applied Electronics,CAEP,Mian yang 621900,China)

【机构】 中国工程物理研究院应用电子学研究所；

【摘要】 共孔径发射/接收方式的多束激光主动照明一般采用挖孔镜进行光路耦合。由于挖孔的存在使得目标回光产生严重衍射,影响其在探测器上成像质量。文中采用圆形光阑模拟挖孔的方式进行建模,计算了挖孔的数量及位置对成像质量的影响,并对此进行了实验验证。结果表明,挖孔数目越多,成像光斑扩展越严重;挖孔位置同样对成像质量有影响。更多还原

【Abstract】 A mirror with few dug-holes were used in multibeam laser illumination system where laser projeted and received in a common aperture.But the dug-holes would cause worse diffraction and image on the detector in laser receiver system.This paper utilized circle apertures to simulate the effect of dug-holes on image,furthermore,a experiment was also done to prove it.The conclusion of the paper is that the laser image will be expanded if the number of the dug-holes increases.The positon of the dug-holes aslo affects image effect.更多还原