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8Â¥: Originally posted by changwen2012 at 2013-09-15 00:20:15
ÄúºÃ£¬ÄãÄܰïÎÒ²éÏÂÎÒµÄô£ºA New Best-Fit Method for Distorted Reflector Antenna Surface£¬Ð»Ð»£¡...

Accession number:       
20133516681709
        Title:        A new best-fit method for distorted reflector antenna surface
        Authors:         Chang, Wen Wen1 ; Yusup, Ai Li1, 2 ; Xiang, Bin Bin1
        Author affiliation:        1 Xingjiang Astronomical Observation, Chinese Academy of Science, China
                2 Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, China
        Source title:        Applied Mechanics and Materials
        Abbreviated source title:        Appl. Mech. Mater.
        Volume:        336-338
        Monograph title:        Industrial Instrumentation and Control Systems II
        Issue date:        2013
        Publication year:        2013
        Pages:        1857-1862
        Language:        English
        ISSN:         16609336
        E-ISSN:         16627482
        ISBN-13:         9783037857519
        Document type:        Conference article (CA)
        Conference name:        2013 2nd International Conference on Measurement, Instrumentation and Automation, ICMIA 2013
        Conference date:        April 23, 2013 - April 24, 2013
        Conference location:        Guilin, China
        Conference code:         99007
        Sponsor:        Korea Maritime University; Hong Kong Industrial Technology Research Centre; Inha University
        Publisher:        Trans Tech Publications Ltd, Kreuzstrasse 10, Zurich-Durnten, CH-8635, Switzerland
        Abstract:        Actual reflector antenna always has a deformation which has a serious influence on antenna performance. Establishing the equation of the distorted reflector surface is important for calculating antenna performance and precise control. A new best-fitting method based on least square method is submitted in this paper. This method depart from the ideal parabolic equation, and use the distance between the deformation point and the correspondent fitting point to establish the least square error condition equations, though which the six parameters can be got to determine the geometry position of the deformed parabolic accurately. Matrix operation can make the algorithm easy to realize in computer. Nan-shan 25m antenna's finite element model is established in ANSYS program, and its result is analyzed compared with another method, confirmed the operability and accuracy of this algorithm. © (2013) Trans Tech Publications, Switzerland.
        Number of references:        10
        Main heading:         Deformation
        Controlled terms:         Algorithms  -  Finite element method  -  Least squares approximations  -  Parabolic antennas  -  Receiving antennas
        Uncontrolled terms:         Antenna performance  -  Least square errors  -  Least square methods  -  Matrix operations  -  Parabolic Equations  -  Reflector antennas  -  Reflector surfaces  -  Surface fitting
        Classification code:         421 Strength of Building Materials; Mechanical Properties -  422 Strength of Building Materials; Test Equipment and Methods -  716 Telecommunication; Radar, Radio and Television -  723 Computer Software, Data Handling and Applications -  921 Mathematics -  921.6 Numerical Methods
        DOI:        10.4028/www.scientific.net/AMM.336-338.1857
        Database:        Compendex
                Compilation and indexing terms, © 2013 Elsevier Inc.

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3Â¥2013-09-13 08:39:56
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3Â¥: Originally posted by tigeer at 2013-09-13 08:39:56
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