Delayed range-gating super-resolution imaging lidar with high accuracy

来源 :ChineseOpticsLetters | 被引量 : 0次 | 上传用户:slayerwei
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
We present a range-gating delayed detection super-resolution imaging lidar with high accuracy based on the signal intensities of three consecutive delay samples. The system combines the range and signal intensity information from multi-pulse detections to calculate the pulse peak position under the assumption of a Gaussian pulse shape. Experimental results indicate that the proposed algorithm effectively calculates pulse peak position and exhibits excellent accuracy with super-resolution. Accuracy analysis shows that accuracy is best improved by enhancing signal-to-noise ratio, strategically selecting samples, reducing pulse width, and appropriately choosing the delayed periods between samples.
其他文献
We demonstrate a strain compensated long lifetime semiconductor saturable absorber mirror (SESAM) with a high modulation depth for fiber lasers. The SESAM was measured to have a damage threshold of 9.5 mJ/cm2, a modulation depth of 11.5%, a sat
搭建了主-从结构的全光被动同步激光器,将主激光器输出脉冲功率放大后注入从激光器,利用注入脉冲在从激光器中的交叉相位调制效应,实现了1029.9 nm泵浦光与1585.5 nm信号光的脉冲同步。采用声光调制器进行选频并配合级联光纤放大,提高了泵浦光脉冲的峰值功率,并通过优化光纤链路长度有效控制了泵浦光光谱展宽。该双色同步脉冲在PPLN晶体中进行非线性差频处理,当重复频率为100 kHz时,获得了3 dB光谱带宽为0.77 nm、中心波长为2940 nm的线偏振皮秒脉冲,最大单脉冲能量为1.8 μJ,泵浦光转
期刊
We discover single and homocentric optical spheres of the three-dimensional inhomogeneous nonlinear Schr?dinger equation (NLSE) with spherical symmetry, which is a novel model of light bullets that can present a three-dimensional rogue wave. The isosurfac
期刊
期刊
由于零折射率介质对于自由空间来说具有零相移和阻抗匹配的特性,因而可以用来控制电磁辐射模式。设计了新型的准直和分光器件结构,该器件建立在近零折射率材料基础上。该结构能实现将散射光转化成准直光束及分光的功能,分光束数、光束宽度和光束方向可以精确控制。仿真结果表明设计的结构具有完美的性能。
An electro-optic tunable rectangular array illuminator in one-dimensional periodically poled LiNbO3 (PPLN) crystal is presented experimentally which result is in good agreement with results from simulation. The illuminator is formed based on the Talbot se
Electroporation is a physical process that transiently permeabilizes prokaryotic and eukaryotic cell membranes with an electrical pulse, permitting cell uptake of a variety of biological molecules. Because of the advantages of high efficiency, low toxicit
Based on the optical activity of quartz crystal, we proposed a scheme for shaping the spatial intensity distribution of a linearly polarized laser beam by utilizing a quartz crystal plano-convex lens in combination with a polarizer. The intensity profile
期刊