Results 1 to 10 of about 2,033,267 (139)

Optimization of space laser coupling with few-mode fiber in the presence of random angular jitter

AIP Advances, 2022
In a space laser communication system with a few-mode fiber as the receiving terminal, the influence of random angular jitter on the communication performance cannot be ignored.
Zhaoyuan Zhang
doaj   +3 more sources

Fiber-coupling efficiency of a Gaussian-beam in anisotropic non-Kolmogorov turbulence in the presence of random angular jitter

Results in Physics, 2020
Increasing experimental evidence and theoretical results verify that the non-Kolmogorov property and anisotropy are both exhibited in the atmospheric turbulence.
Chao Zhai
doaj   +4 more sources

Performance of fiber-based QAM/FSO systems in turbulence with anisotropic tilt angle and random angular jitter

Results in Engineering
Recent experiments have demonstrated that the anisotropic property of turbulence cells is inherently present, and the long axis of turbulence cell possibly is not level with the ground but has an anisotropic tilt angle with it.
Chao Zhai, Zhenyuan Xue
doaj   +5 more sources

On the choice of the aperture diameter of the probe laser in ground-based adaptive optoelectronic systems in the formation of a sodium reference star [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2021
Subject of study. The authors propose an integrated approach to the problem of determining the aperture diameter of a probe laser that forms a laser reference star used in ground-based adaptive optoelectronic systems. The relevance of this study is due
Victor V. Kleymionov, Elena V. Novikova, Maxim I. Oleynikov   +2 more
doaj   +1 more source

Terminal Traction Control of Teleoperation Manipulator With Random Jitter Disturbance Based on Active Disturbance Rejection Sliding Mode Control

IEEE Access, 2020
The present study proposes an active disturbance rejection sliding mode traction control system to deal with the dramatic change of joint angular acceleration and jitter attributed to non-uniform traction during terminal traction of the manipulator based
Peng Ji, Fengying Ma, Feng Min
doaj   +1 more source

Residual LSTM-Based Multipath-Scattered Pulse Sorting for Scatterer Localization in Maritime ESM Systems

Remote Sensing
In maritime electronic support measures (ESMS), multipath-scattered pulses are often suppressed during pulse sorting, although their delay, amplitude, and angular differences may provide information for passive scatterer localization.
Wei Chen, Jie Song, Wei Xiong
doaj   +1 more source

DOA estimation with anti-jitter based on DMA heterogeneous codebook cyclic Kalman filtering

Dianxin kexue
The dynamic metasurface antenna (DMA) has become an innovative technology designed to estimate the direction of arrival (DOA) for airborne platforms. However, its performance can be significantly impacted by platform jitter.
LIU Wuding, YI Ming, JIN Liang, JIAO Shiheng, ZHANG Bingqi, LYU Haoyu   +5 more
doaj  

A Robust CS-DOA Method for Multi-UAV-Assisted Agricultural Vehicle Localization in Smart Tillage. [PDF]

Sensors (Basel)
Zhang J, Ma N, Li H, Dai F, Wang Y, Zhang X, Lu Z, Li L, Chen H, Zhang Y.   +9 more
europepmc   +1 more source

Software-Defined UHF RFID Asset Tracking in Metallic Aircraft Cabins via IMU-Assisted Adaptive Kalman Filtering and Distilled Edge Intelligence. [PDF]

Sensors (Basel)
Karadag M, Pinarer O.
europepmc   +1 more source

Integrated Dynamic Modeling and Ground Test Validation for Spacecraft Micro-Vibration Suppression Considering Disturbance, Isolation, and Pointing Control. [PDF]

Sensors (Basel)
Wang H, Yan H, Tian L, Zang X, Zu Y.
europepmc   +1 more source