遮蔽目标激光雷达回波波形的建模与仿真  

Simulation and modeling of lidar waveforms returned from obscure targets

作　　者：黄涛[1,2] 胡以华[1,2] 赵楠翔[1,2] 蒲晓丰[1,2] 

机构地区：[1]电子工程学院脉冲功率激光技术国家重点实验室,合肥230037 [2]电子工程学院安徽省电子制约技术重点实验室,合肥230037

出　　处：《激光技术》2011年第1期11-14,共4页Laser Technology

基　　金：国家自然科学基金资助项目(60672154)

摘　　要：为了探索利用激光雷达探测遮蔽目标,研究了遮蔽目标对激光雷达回波波形的影响,采用数学建模的方法,构建了遮蔽目标激光雷达回波模型。该模型充分考虑到了脉宽展宽、光谱反射率、退偏振等因素对回波波形的影响,并利用该模型取得了对遮蔽目标激光雷达回波波形的仿真数据。结果表明,不同目标的反射率和退偏度对回波波形有着较大的影响,这为今后研究利用回波波形探测遮蔽目标奠定了基础。In order to explore the detection of obscure targets by means of lidar, the effects of obscure targets on returned lidar waveforms were studied. By using the method of mathematical modeling, the model of lidar waveforms returned from obscure targets was constructed, in which the effects of pulse stretch, spectrum reflectivity and depolarization on return waveforms were considered. The simulation data of the waveforms returned from obscure targets were obtained based on this model. The simulation data indicate that the reflectivity and depolarization of different targets has the prominent effect on return lidar waveforms, provide a foundation for future study on the detection of the obscure target based on return lidar waveforms.

关 键 词：激光技术 波形仿真 建模 遮蔽目标 

分 类 号：TN958.98[电子电信—信号与信息处理]