期刊名称：International Journal of Computer Science and Security (IJCSS)
电子版ISSN：1985-1553
出版年度：2007
卷号：1
期号：3
页码：19-26
出版社：Computer Science Journals
摘要：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
