Results 1 to 10 of about 553,448 (134)
The current measurement system of surface scattering rate applied in laser protective materials has the defects of low accuracy, discontinuous diagnosis region and narrow infrared measuring waveband.
Zhen Yang +5 more
doaj +1 more source
A Study of Correction to the Point Cloud Distortion Based on MEMS LiDAR System
Active imaging technology can perceive the surrounding environment and obtain three-dimensional information of the target. Among them, light detection and ranging (LiDAR) imaging systems are one of the hottest topics in the field of photoelectric active ...
Dongbing Guo +4 more
doaj +1 more source
We report on a self-adaptive waveform centroid algorithm that combines the selection of double-scale data and the intensity-weighted (DSIW) method for accurate LiDAR distance–intensity imaging. A time window is set to adaptively select the effective data.
Shiyu Yan +6 more
doaj +1 more source
Wireless optical coherent communication can be used as the backbone supporting technology of air-space-ground-sea-integrated network. In wireless optical coherent communication, the information can be demodulated from the carrier correctly only when the ...
ShuPeng Zhang, LiYing Tan, Jing Ma
doaj +1 more source
A distributed birefringence measurement of a polarization-maintaining fiber (PMF) can be realized by using a Brillouin dynamic grating (BDG). However, the pump depletion decreases the intensity of the BDG along the PMF and limits the measurement range to
Taofei Jiang +5 more
doaj +1 more source
A high-energy, alignment-insensitive, injection-seeded Q-switched Ho:yttrium aluminum garnet (YAG) single-frequency laser is developed. Both the slave Q-switched laser and the seed laser are Ho:YAG ring lasers based on a pair of corner cubic reflectors ...
Dong Yan +8 more
doaj +1 more source
All-Solid-State Optical Phased Arrays of Mid-Infrared Based Graphene-Metal Hybrid Metasurfaces
Optical phased arrays (OPAs) are essential optical elements in applications that require the ability to manipulate the light-wavefront, such as beam focusing and light steering.
Yue Wang +6 more
doaj +1 more source
High-sensitivity distributed dynamic strain sensing by combining Rayleigh and Brillouin scattering
The phase-sensitive optical time-domain reflectometry (φ-OTDR) is a good candidate for distributed dynamic strain sensing, due to its high sensitivity and fast measurement, which has already been widely used in intrusion monitoring, geophysical ...
Wang Benzhang +5 more
doaj +1 more source
A Calibration Method for Time Dimension and Space Dimension of Streak Tube Imaging Lidar
Owing to the special working systems of streak tube imaging lidar (STIL), the time and space dimensions are coupled together on the streak images.
Zhaodong Chen +7 more
doaj +1 more source
Research of Distance-Intensity Imaging Algorithm for Pulsed LiDAR Based on Pulse Width Correction
Walking error has been problematic for pulsed LiDAR based on a single threshold comparator. Traditionally, walk error must be suppressed by some time discrimination methods with extremely complex electronic circuits and high costs.
Shiyu Yan +4 more
doaj +1 more source

