Pointing Error Correction for a Moving-Platform Electro-Optical Telescope Using an Optimized Parameter Model [PDF]
Sensors, 2023 This paper proposes a new optimized parameter model that enhances the pointing accuracy of moving-platform electro-optical telescopes (MPEOTs). The study begins by comprehensively analyzing the error sources, including the telescope and the platform ...
Yan He +4 more
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Pointing Error Correction for Vehicle-Mounted Single-Photon Ranging Theodolite Using a Piecewise Linear Regression Model [PDF]
SensorsPointing error is a critical performance metric for vehicle-mounted single-photon ranging theodolites (VSRTs). Achieving high-precision pointing through processing and adjustment can incur significant costs.
Qingjia Gao +6 more
doaj +4 more sources
International Journal of Optomechatronics, 2021 The geometrical error caused pointing error is an inevitable problem in space satellite laser communication terminals which can affect the pointing accuracy of the APT (acquisition pointing and tracking) system greatly, in order to facilitate the ...
Furui Zhang +3 more
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Efficient MIMO Configuration for Bi-Directional Vertical FSO Link with Multiple Beam Induced Pointing Error [PDF]
Sensors, 2022 We proposed the statistical misalignment model and the power-efficient configuration of transceivers for bi-directional multi-input and multi-output (MIMO) based vertical free space optical (FSO) links.
Sung-Jin Kim, Sang-Kook Han
doaj +2 more sources
Applied Sciences, 2022 The terahertz frequency band has the advantages of having a large bandwidth, narrow beam, strong penetration, and high security, and is an important direction for the frequency expansion of next-generation satellite communications.
Yuanzhi He, Chensheng Ma
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Propagation Characteristics of Hermite–Gaussian Beam under Pointing Error in Free Space
Photonics, 2022 Hermite–Gaussian (HG) beams have significant potential to improve the capacity of free-space optical communication (FSOC). The influence of pointing error on the propagation characteristics of an HG beam cannot be ignored in the FSOC system. Although the
Xin Liu +5 more
doaj +3 more sources
A deep learning approach for predicting the antenna pointing error caused by transmission faults with simulation data [PDF]
Scientific ReportsReflector antenna has been widely used in deep space exploration, radar warning, and other fields, all of which requires high pointing accuracy. The antenna elevation bearings are the key component that guarantees its pointing accuracy, while any ...
Lihui Chen +5 more
doaj +2 more sources
High-Precision Calibration Technology and Experimental Verification for Dual-Axis Laser Communication Systems [PDF]
SensorsWith the continuous improvement of remote sensing satellite resolution, laser communication technology has gained significant traction. The pointing accuracy of ground-based laser communication terminals is critical for the stability of satellite–ground ...
Wenyan Li +6 more
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IEEE Photonics Journal, 2021 In free-space optical (FSO) communication, high-precision pointing is a critical technology required for rapid acquisition to reduce link establishment time and increase communication time.
Chao Peng +8 more
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Seeing your error alters my pointing: observing systematic pointing errors induces sensori-motor after-effects. [PDF]
PLoS ONE, 2011 During the procedure of prism adaptation, subjects execute pointing movements to visual targets under a lateral optical displacement: as consequence of the discrepancy between visual and proprioceptive inputs, their visuo-motor activity is characterized ...
Roberta Ronchi +4 more
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