Dissertation > Industrial Technology > Radio electronics, telecommunications technology > Radio equipment,telecommunications equipment > Antenna > General issues

Measurement of Antenna Geometry Based on Image

Author MaCaiXia
Tutor ChenMei
School Xi'an University of Electronic Science and Technology
Course Communication and Information System
Keywords Image Measurement Tablet crack array antenna Image processing Measurement accuracy
Type Master's thesis
Year 2010
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Plate Slot array antenna has advantages of light weight , small size , cheap , and it is widely used in practice . But often due to the limitations of the actual processing , the finished size of the antenna design value certain errors , understand the the processing error value of the analysis of antenna performance very important practical significance . Thus, the accurate measurement of the actual dimensions of the antenna is increasingly necessary. Traditional direct measurement methods are increasingly unable to meet the requirements of high-precision , high-speed engineering , this paper presents the use of image measurement technology to achieve accurate measurements of flat cracks array antenna . The principle of this technique is the application of digital image processing technology to extract the edge of the object image to obtain the geometric parameters of the object , and is very suitable for the precision measurement of small size . The existing image measurement and image processing theory based tablet crack array antenna for the experiment , the analysis of the characteristics of large images and image measurement , in-depth analysis and image processing techniques to study this subject - image filtering, edge detection , and based on looking for the feasibility of this subject . And design image measurement software , verify the practical feasibility of the algorithm , the software can achieve accurate measurements of the tiny size . In order to verify the accuracy of the measurement algorithm , this paper gives the tablet image software crack array antenna measurements , measuring the effective bit of a millimeter decimal point after three , description of the image processing and measurement algorithms used in this paper in practical application is feasible , and to obtain a better measurement results .

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