The Generation of the Components Meta-Models of an E-Orientation System Using the WSDL-UML Transformation

2018 ◽  
Author(s):  
Jihad Adib ◽  
Hicham Moutachaouik ◽  
Abdelaziz Marzak ◽  
Mustapha Hain
Keyword(s):  
Orientation System

Choosing Damping Parameters for the Inertial Orientation System

2021 ◽  
pp. 113-128
Author(s):  
V.P. Podchezertsev ◽  
S.V. Topilskaya
Keyword(s):  
Natural Frequency ◽  
Vibration Suppression ◽  
Outer Space ◽  
Protection System ◽  
Dynamic Vibration ◽  
Shock Absorbers ◽  
Vibration Protection ◽  
Orientation System ◽  
Vibration Impact ◽  
Vibration Dampers

The article discusses criteria for selecting the vibration protection for the spacecraft inertial orientation system. The considered vibration protection system allows providing acceptable amplitude acceleration for the gyroscopic device sensitive elements under vibration impact on the device body during the spacecraft launching and high angular stability of the position of the sensitive elements relative to the inertial coordinate system during a long period of operation (15 years) in orbit. The proposed vibration protection system consists of shock absorbers (springs) with stable high elastic characteristics under all factors of operation in the outer space and dynamic vibration dampers. The article presents a method for determining the parameters of dynamic vibration dampers taking into account the characteristics of the shock absorber, critical for the damping system of an inertial device. The proposed method for adjusting dynamic vibration dampers consists in suppressing vibrations at the natural frequency f1 of the shock absorption system and providing acceptable values of the gain coefficients of the structure resonant vibration amplitudes near the natural frequency f1. Certain characteristics of the damping system allow realizing the permissible vibration amplification coefficients at resonance, without significantly affecting the level of vibration suppression in the natural frequency zone of the vibration protection object

Error Analysis and Compensation in Images Stitching for the Mechanically Stitched CCD Aerial Cameras

2019 ◽  
Vol 33 (09) ◽  
pp. 1955012
Author(s):  
Haipeng Kuang ◽  
Lina Zheng ◽  
Guoqin Yuan ◽  
Jianjun Sun ◽  
Zhuang Zhang
Keyword(s):  
Attitude Change ◽  
Correction Method ◽  
Monte Carlo Algorithm ◽  
Image Motion ◽  
Image Mosaic ◽  
Geometric Correction ◽  
Ccd Imaging ◽  
Imaging Model ◽  
Orientation System ◽  
Relationship Of

Image misalignment during image stitching is a common issue for the mechanically stitched CCDs in the aerial cameras due to the relative image motion between CCDs. In this paper, we analyze the error in imaging stitching for the mechanically stitched CCDs and propose a compensation method based on position and orientation system (POS). First, the imaging relationship of overlapping pixels in mechanical stitching is analyzed. The imaging model of adjacent CCD is constructed according to the collinear equation. The effects of stitching staggered distance, carrier attitude change and flight speed on the image mosaic of overlapping areas are given. Monte Carlo algorithm is used to analyze the statistical value of image mosaic error in overlapping area under typical working conditions. Then, a geometric correction method based on POS recording of external orientation elements of adjacent CCD imaging is proposed. The overlapping area stitching error is reduced from 14.9 pixels to 0.4 pixels which meets the engineering requirements. The mechanical stitching mathematical model, analysis and correction method established in this paper have strong engineering and application significance for mechanical stitching of aerial cameras.

Orientation system of a spacecraft based on the inverse problems methodology

2020 ◽  
Vol 12 (2) ◽  
pp. 65-77
Author(s):  
Evgeny Chebakov ◽  
Alexey Nenarokomov ◽  
Irina Krainova ◽  
Dmitry Reviznikov
Keyword(s):  
Inverse Problems ◽  
Orientation System

Improvement of the professional orientation system, adaptation and promotion of nursing staff in medical organization

2021 ◽  
pp. 7-24
Author(s):  
Natalya Viktorovna Timinskaya ◽  
Larisa Arkadyevna Karaseva
Keyword(s):  
Vocational Guidance ◽  
Medical Organization ◽  
Professional Orientation ◽  
New Employees ◽  
Factors Affecting ◽  
Senior Nurse ◽  
Conscious Choice ◽  
Orientation System ◽  
System Adaptation

The aim of the study is to improve the system of vocational guidance, adaptation and promotion of nursing personnel in a medical organization. Results: an assessment was made of the organization of vocational guidance, factors affecting labor adaptation, the conditions necessary for promotion up the career ladder and the role of a senior nurse in all designated areas. Conclusion: The personnel management system implies, first of all, a well-functioning procedure for the entry of new employees into the organization, which allows to reduce material costs, time costs, staff turnover, psycho-emotional stress. The formation of a positive attitude of new employees to work, in the future, is influenced by a conscious choice of profession (professional orientation) and the possibility of career advancement.

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