The Design and Implementation of Matlab Simulation in Optical Aberration

2014 ◽  
Vol 575 ◽  
pp. 541-544
Author(s):  
Zhen Hua Lao
Keyword(s):  
Programming Language ◽  
Spherical Aberration ◽  
Simulation Algorithm ◽  
Matlab Simulation ◽  
Parametric Variation ◽  
Design And Implementation ◽  
Optical Aberration ◽  
Aberration Theory

In the teaching of optical courses, the aberration knowledge is abstract and students often feel it difficult to understand. According to this phenomenon, a new simulation algorithm, which is based on the analysis of chromatic and spherical aberration theory, is described in this paper; with Matlab as the programming language, the emulation programs of chromatic and spherical aberration are designed and the simulation figures are presented, from which the effect of parametric variation on aberration can be shown vividly and intuitively. And for students, this will be helpful in the mastery of aberration knowledge.

Research on Mechanical Product Development Based on CAD Software

2014 ◽  
Vol 484-485 ◽  
pp. 933-937
Author(s):  
Fu Na Li ◽  
Lin Wei Yang ◽  
Ying Zeng
Keyword(s):  
Programming Language ◽  
Interface Design ◽  
Development Process ◽  
Visual Basic ◽  
Common Language ◽  
Test Results ◽  
Technology Application ◽  
Development System ◽  
Design And Implementation ◽  
Software Interface

This paper introduces analysis the development process of CAD technology, application of the AutoCAD software in engineering field and teaching as well as the significance of the development of two times the. This paper analyzes in detail the development of common language, and the use of Visual BASIC development and application of software based on AutoCAD. The author elaborates the software interface design and method calls AutoCAD in VB. Finally, the design and implementation of a programming language re-development system based on AutoCAD is concerned. The test results show that the developed AutoCAD two development system has good practical value.

Algorithm Design and Implementation of Dynamic Star Simulator

2013 ◽  
Vol 722 ◽  
pp. 187-193
Author(s):  
Xiao Fang Zhao ◽  
Guang Bin Liu ◽  
Chao Shan Liu
Keyword(s):  
Traditional Method ◽  
Algorithm Design ◽  
Star Tracker ◽  
Simulation Algorithm ◽  
Arc Length ◽  
Visual Axis ◽  
Star Image ◽  
Design And Implementation ◽  
Simulation Testing ◽  
Celestial Sphere

In order to realize the simulation testing and calibration of star tracker in the lab, a simulation algorithm for dynamic and celestial sphere star image was proposed. This algorithm could complete simulation of star image at any time and any visual axis point, also could realize in-orbit simulation according to a given track. A new method of space district dividing was also presented in order to improve the traditional method of space district dividing by ascension and declination, fully considered declination arc length gradually shortened with latitude increasing. It can remarkably enhance the updating frequency simulation star image.

scholarly journals SISTEM INFORMASI PEMERINTAHAN DESA PADA KANTOR DESA TENGGIR PANJI SITUBONDO MENGGUNAKAN PHP DAN MYSQL

2018 ◽  
Vol 3 (2) ◽  
pp. 256-262
Author(s):  
Yuni Nur Waqiah
Keyword(s):  
Information System ◽  
Programming Language ◽  
Financial Management ◽  
Information Needs ◽  
Public Services ◽  
Government Agency ◽  
Design And Implementation ◽  
Microsoft Word ◽  
The Village ◽  
New System

The Tenggir Village Office is a government agency engaged in public services that has a good management system. That can be seen from the service to the community, the better. With more and more people, while the problem faced by the agency is managing data that is still less effective, one of which is the management of mail-making services. Management services for writing letters at institutions using computerized systems that are not easy to manage, such as using Microsoft Word. The development of information from the old system to the new system is expected to help the institution, storage, and archiving reports more easily. The design and implementation of the Village Administration Information System at the Tenggir Panji Situbondo Village Office use the PHP programming language and the MySQL database and other software in the design of this system. In its implementation, this application can answer information needs that can be used for financial management easier and faster, especially for reporting.

scholarly journals Effect of Surface Error Distribution and Aberration on Electromagnetic Performance of a Reflector Antenna

2019 ◽  
Vol 2019 ◽  
pp. 1-15
Author(s):  
Binbin Xiang ◽  
Congsi Wang ◽  
Peiyuan Lian
Keyword(s):  
Large Scale ◽  
Spherical Aberration ◽  
Reflector Antenna ◽  
Error Distribution ◽  
Simple Manner ◽  
Optical Aberration ◽  
Antenna Performance ◽  
Surface Distortions ◽  
Electromagnetic Performance ◽  
Effect Of Surface

In this paper, a method based on the Zernike distribution and the optical aberration is proposed to investigate the effects of the distribution characteristics of surface distortions of a reflector antenna on its electromagnetic performance (EMP). For large-scale errors, an analytical model is introduced to describe the arbitrary distortions, based on the orthogonal Zernike polynomials. The effects of error distribution described by the Zernike series on typical EMP are analyzed. The numerical results indicate that the distortions in the distribution feature of defocus or spherical aberration have a greater impact on gain, and the distribution feature of tilt or coma mainly influences boresight offset; the distribution feature of defocus, astigmatism, and spherical aberration has a greater impact on sidelobe levels. The results indicate that the beam contour patterns are related to the distribution forms of distortions and are similar with the same aberration feature. On the basis of the Seidel aberration, the relationships between typical EMP and the aberration coefficient are presented. Based on these, the error profile of the primary influence and the approximate feature of EMP can be determined, and the antenna performance can be predicted in a simple manner.

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