iosr-JECE   Volume-3 ~ Issue-4

Abstract: An Improved Bernsen Algorithm approaches for License Plate Recognition (LPR) applied to the intelligent transportation system. LPR is an image processing technology used to identify the vehicles by their license plates. License plate recognition is mainly based on two methods. One is License plate detection method which is based on Improved Bernsen Algorithm and the other is license plate character recognition method. The proposed LPR algorithm consists of three modules: 1) Locating the license plates; 2) Segmenting the characters; and 3) Identifying the license characters. The algorithm was tested with 100 images, such as an Indian vehicle images using different backgrounds. The experimental results show the algorithm can divide the character of plate effectively.
Keywords: Bernsen algorithm, character recognition, feature extraction, License Plate Recognition.

[1] Ying Wen, Yue Lu, IEEE, Jingqi Yan, Zhenyu Zhou, Karen M. von Deneen, and Pengfei Shi, " An Algorithm for License Plate
Recognition Applied to Intelligent Transportation System" IEEE TRANSACTIONS ON INTELLIGENT TRANSPORTATION
SYSTEMS, VOL. 12, NO. 3, SEPTEMBER 2011
[2] Jing-Ming Guo and Yun-Fu Liu "License Plate location and character segmentation with Feedback self learning and Hybrid
Binarization techniques", IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 57, NO. 3, MAY 2008
[3] Q. Zuo and Z. Shi, "A real-time algorithm for license plate extraction based on mathematical morphology," J. Image Graph., vol. 8,
no. 3, pp 281–285, 2003.
[4] Halina Kwasnicka and Bartosz Wawrzyniak, "License plate localization and r ecognition in camera pictures", AI-METH 2002,
November 13-15, 2002.
[5] Y. P. Huang, C. H. Chen, Y. T. Chang, and F. E Sandnes, "An intelligent strategy for checking the annual inspection status of
motorcycles based on license plate recognition," Expert Syst. Appl., vol. 36, no. 5, pp. 9260–9267, Jul. 2009.
[6] D. N. Zheng, Y. N. Zhao, and J. X. Wang, "An efficient method of license plate location," Pattern Recognit. Lett., vol. 26, no. 15,
pp. 2431–2438, Nov. 2005.
[7] J. B. Jiao, Q. X. Ye, and Q. M. Huang, "A configurable method for multi-style license plate recognition," Pattern Recognit., vol.
42, no. 3, pp. 358–369, Mar. 2009.
[8] V. Abolghasemi and A. Ahmadyfard, "An edge based color-aided methodfor license plate detection," Image Vis. Comput., vol. 27,
no. 8, pp. 1134–1142, Jul. 2009.
[9] S. Luis, M. Jose, R. Enrique, and G. Narucuso, "Automatic car plate detection and recognition through intelligent vision
engineering," in Proc.IEEE 33rd Int. Carnahan Conf. Security Technol., 1999, pp. 71–76.
[10] N. Otsu, "A threshold selection method from gray-level histograms," IEEE Trans. Syst., Man, Cybern., vol. SMC-9, no. 1, pp. 62–
66, Jan. 1979.

Abstract :The On/Off faults are among the most prominent hazards observed in antenna arrays. They behave like a catalyst towards steady degradation of the circuit's performance. This paper is regarding fault monitoring in the microstrip patch antenna array [1][6]. The fault modeling, included here is single and double fault models of the patch antenna array of 8 elements. There is a marked deviation in the parametric properties of the array because of On/Off faults. By observation and analysis of these trends, the detection of fault in the array is simplified to a great extent. We aim at identification of On/Off faults in a faulty array structure by observation of its characteristic properties (like S- parameters and Radiation Pattern) and their analysis using Matrix Comparison Method and Scaled Conjugate Gradient Back Propagation Algorithm in Artificial Neural Network.
Key words: Patch antenna, patch array antenna feed, S-parameter, radiation pattern, characteristic impedance, neural network.

[1] H. Entschladen, U. Nagel ,"Microstrip patch array antenna",IEEE Trans.1984,PP. 931-933.
[2] K.A. Carver and J.A. Mink, "Microstrip antenna technology", IEEE transactions on Antennas & Propagation, VOL. 29, January
1981, PP. 2-24.
[3] Edward H. Newman, John E. Tehan, "Analysis of microstrip arrya and feed network" ,IEEE Trans. VOL. AP-33,1985.
[4] M. Ramesh AND Yip KB ," Desing formula for inset fed microstrip patch antenna ", journal of microwave and optoelectronics
VOL. 3 N. Dec-2003.
[5] N. Bayat, H. R. Hassani, S. Mohammad and Ali Nezhad, "Sidelobe reduction in microstrip patch antenna array", IEEE Trans. NOV-
2011
[6] J.R. James, P.S. Hall, 'Handbook OF Microstrip Antennas' VOL. 2, Peter Peregrinus ltd., London United Kingdom, 1989.
[7] A. Mohd. Tarmizi, M.T. Mohd Wor, A.R. Tharek and R. Abdolee,"Reconfigurable Microstrip Patch Antenna Array with Beam
Shaping" IEEE TRANS.2007
[8] Shuguang Chen and Ryuichi Iwata,"Mutual Coupling Effect in Microstrip Patch Array Antenna" IEEE TRANS 1998.
[9] Z. I. Dafalla, W.T.Y. Kuan, A.M. Abdel Rahman and S.C. Shudakar,"design of a Rectangular Microstrip Patch Antenna at 1 GHZ"
IEEE Trans, RF and microwave confrence oct. 2004.
[10] QI-JUN Zhang, Kuldip C. Gupta,Vijay K. Devabhaktuni, "Artificial Neural Networks for RF and Microwave Design: From theory
to practice".

Abstract:A rectangular MSA and ring slot MSA with circular polarization radiation. The antenna has a high return loss, where the return loss is compare with its experimental value. The experimental results of both antennas compared with each others, the proposed antenna is able to achieve the return loss above -10db.t.

[1] Thomas A. Milligan "2nd addition Modern antenna design"pp: 318-354.
[2] Maci S Biffi G & Gentili, Dual frequency patch antennas, IEEE Trans Antennas Propag (USA), 39 (1997) 13.
[3] Z. L. Dafalla, W. T. Y. Kuan, A. M. Abdel Rahman, and S. C. Shudakar, "Design of a Rectangular Microstrip Patch Antenna at 1
GHz", Rf And Microwave Conference, October 5 - 6- 2004 ,Subang, Selangor, Malaysia
[4] Bahl, I.J. and Bharatia, P. Microstrip Antennas, Artech House, 1980.
[5] C.Y. Chiu, C.H. Chan and K.M. Luke , "Study of slotted microstrip patch antennas with folded patch feed ", Microwave Antenna s
propagation., vol. 152, no. 5, october 2005
[6] C-Y Huang, J-Y Wu and K-L Wong, "Cross-slot-coupled microstrip antenna and dielectric resonator antenna for circular
polarization. IEEE Trans on Antennas and Propagat, 1999,47(4)
[7] S Matsuzawa and K Ito, " Circularly polarized printed antenna fed by coplanar waveguide. Electron. Lett, Vol.32 No.22, 1996
[8] S. D. Targonski and D. M. Pozar, " Design of wide-band circularly polarized aperture coupled microstrip antenna. IEEE Trans on
Antennas and Propagat, vol. 41, pp. 214-220, 1993.
[9] C.A. Balanis, "Antenna theory", John Wiley, 1982, pp 727-734.