|
| Decimal Genetics Algorithms for Null Steering and Sidelobe Cancellation in Switch Beam Smart Antenna System.
|
|
Full
text: |
 PDF(306.6KB) |
|
|
Source |
International Journal of Computer Science and Security (IJCSS) |
|
Table of Contents |
|
|
Download
Complete Issue PDF(1.01MB) |
|
Volume: 1 Issue: 3 |
| |
Pages: 1-26 |
|
Publication
Date: October 2007 |
|
ISSN
(Online): 1985-1553 |
|
|
|
|
|
Pages |
19 - 26 |
|
Author(s) |
|
|
|
Published
Date |
30-08-2007 |
|
Publisher |
CSC
Journals, Kuala Lumpur,
Malaysia |
|
ADDITIONAL
INFORMATION |
| Keywords Abstract References Cited by Related Articles Collaborative
Colleague |
| |
|
| |
KEYWORDS: Genetic algorithm, Smart antenna, Null steering, Sidelobe cancellation |
|
|
| |
|
|
| This Manuscript is indexed in the following databases/websites:- |
|
| 1. Directory of Open Access Journals (DOAJ) |
| 2. ScientificCommons |
| 3. PDFCAST |
| 4. Scribd |
| 5. Docstoc |
| 6. Google Scholar |
| 7. WorldCat |
| 8. ResearchGATE |
| 9. Bielefeld Academic Search Engine (BASE) |
| 10. Socol@r |
| 11. Microsoft Academic Search |
| 12. iSEEK |
| 13. Academic Journals Database |
| 14. Libsearch |
| |
|
| |
|
|
| Sidelobes cancellation is challenging task in beamforming and beam steering in
smart antenna systems. The high level of sidelobes can significantly degrade the
system performance as well as antenna power efficiency. In this paper, we
present the new decimal genetic algorithm to reduce the sidelobe and at the
same time create the nulls toward interferers and jammers. This technique takes
advantage of Chebyshev coefficients window as an initial weight vector to speed
up the optimization process. The simulation results have shown that this
technique is able to find the most suitable weights vector to reduce the sidelobe
power and at the same time create the nulls toward interferers. Verification has
been done for Uniform Linear Array (ULA) structure. However, this technique can
be used for non regular geometrical antenna array structure with variety of beam
pattern requirements |
| |
|
| |
|
| |
| 1 |
C. L. Dolph, "A current distribution for broadside arrays which optimizes the relationship between beam width and side-lobe level," Proc. IRE, vol. 34, pp. 335-447, June 1946.
|
|
|
| 2 |
Y. C. Jiao, W. Y. Wei, L. W. Huang, and H. S. Wu, “A new lowside-lobe pattern synthesis technique for conformal arrays,” IEEE Trans. Antennas Propagat., vol. 41, pp. 824–831, June 1993.
|
|
|
| 3 |
M. H. Er, S. L. Sim, and S. N. Koh, “Application of constrained optimization techniques to array pattern synthesis,” Signal Processing, vol. 34, pp. 323–334, Nov. 1993.
|
|
|
| 4 |
E. C. Dufort, “Pattern synthesis based on adaptive array theory,” IEEE Trans. Antennas Propagat., vol. 37, pp. 1011–1018, Aug. 1989.
|
|
|
| 5 |
C. A. Olen and R. T. Compton, Jr. “A numerical pattern synthesis algorithm for arrays,” IEEE Trans. Antennas Propagat., vol. 38, pp. 1666–1676, Oct. 1990.
|
|
|
| 6 |
Harrington, R. ”Sidelobe reduction by nonuniform element spacing” Antennas and Propagation, IEEE Transactions, Volume 9, Issue 2, Mar 1961 Page(s):187- 192
|
|
|
| 7 |
K.-K. Yan and Y. Lu, “Sidelobe reduction in array-pattern synthesis using genetic algorithm,” IEEE Trans. Antennas Propagat., vol. 45, pp,1997
|
|
|
| 8 |
C. Balanis, “Antenna Theory—Analysis and Design”, New York: Wiley, 2005.
|
|
|
| 9 |
L. Davis, Ed.”Handbook of Genetic Algorithms”, New York: Van Nostrand Reinhold, 1991.
|
|
|
| |
|
| |
|
| |
| 1 |
R. Abdolee, T. A. Rahman and V. Vakilan, “Elements Space and Amplitude Perturbation Using Genetic Algorithm for Antenna Array Sidelobe Cancellation”, Signal Processing: An International Journal (SPIJ), 2(2), pp. 10 – 16, 2008.
|
|
|
| |
|
| |
|
| |
| |
|
| |
|
| |
|
| Reza Abdolee : Colleagues
|
|
| Mohd Tarmizi Ali : Colleagues
|
|
| Tharek Abd Rahman : Colleagues
|
|
