Please wait a minute...
浙江大学学报(工学版)
J4  2011, Vol. 45 Issue (1): 64-67    DOI: 10.3785/j.issn.1008-973X.2011.01.010
计算机技术﹑电信技术     
新的幅值扰动形成零陷算法
赵仙红1,杨俊1,赵利民2
1. 长安大学 信息工程学院,陕西 西安 710064； 2. 北京电子科技职业学院 通信工程系,北京 100010
Novel nulling forming algorithm based on amplitude perturbation
ZHAO Xian-hong1, YANG Jun1, ZHAO Li-min2
1. School of Information Engineering, Chang’an University, Xi’an 710064, China;2. Department of Communication
Engineering, Beijing Vocational College of Electronic Science, Beijing 100010, China
 全文: PDF  HTML
摘要：

针对传统幅值扰动算法形成零陷深度不足的问题,在新的幅值扰动方法基础上,提出零陷平均功率方向图函数的新概念.通过最小化该零陷平均功率方向图函数值建立新的非线性代价函数,利用最陡下降算法求得幅值扰动的最优解.仿真结果表明：采用新的幅值扰动形成零陷算法,突破了传统幅值扰动算法对零陷个数的限制,即无论零陷个数设置为多少,都能够在干扰源方向形成理想的零陷深度；克服了在传统幅值扰动算法中零陷深度增加时,旁瓣电平会升高的缺点；保证了主瓣不发生畸变,从而形成理想的天线方向图，提高了天线的抗干扰能力.
Abstract:

The concept of pattern function of nulling average power was presented based on a new amplitude perturbation method in order to solve the problem of nulling depth insufficiency in traditional amplitude perturbation algorithms. A new nonlinear cost function was established by minimizing the pattern function available of nulling average power, and the optimal amplitude perturbation was obtained by using the steepest descent algorithm. Simulation results show that the algorithm can break through the limitation of nulling number in traditional amplitude perturbation algorithms, and can form ideal nulling depth in directions of interferences regardless of the nulling number. Meanwhile, the algorithm can conquer the shortcoming that the electrical levels of sidelobes arise while nulling depth increases in traditional amplitude perturbation algorithms. Finally, the algorithm ensures the nonaberration of mainlobes to form ideal antenna pattern, and improves the  antiinterference capability of the antenna．
出版日期: 2011-03-03
:  TN 929.5  
基金资助:

陕西省科技攻关项目（20070431）.
作者简介: 赵仙红(1964－), 女, 陕西合阳人, 讲师, 从事智能天线及开关稳压电源研究. E-mail: xhzhao@chd.edu.cn
服务　　
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章　　

引用本文:

赵仙红,杨俊,赵利民. 新的幅值扰动形成零陷算法[J]. J4, 2011, 45(1): 64-67.

ZHAO Xian-hong, YANG Jun, ZHAO Li-min. Novel nulling forming algorithm based on amplitude perturbation. J4, 2011, 45(1): 64-67.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2011.01.010    或    http://www.zjujournals.com/eng/CN/Y2011/V45/I1/64

［1］ 石镇.自适应天线原理［M］.北京：国防工业出版社,1991: 99-138.
［2］ HAUPT R L,JOHNSON J M. Dynamic phaseonly array beam control using a genetic algorithm ［J］. Evolvable Hardware, 1999, 21（19）：217-224．
［3］ ISMAIL T, DAWOUD M. Null steering in phased arrays by controlling the elements positions ［J］. IEEE Transactions on Antennas and Propagation, 1991,39(11)：1561-1566．
［4］ STEYSKA H, SHORE R A, HAUPT R L. Methods for null control and their effects on radiation pattern ［J］ IEEE Transactions on Antennas and Propagation,1986,34(3)：404-409．
［5］ YASHCHYSHYN Y, STARSZUK G. Investigation of a simple fourelement steering antenna array ［J］. IEE Proceedings on Microwaves, Antennas and Propagation, 2005,152(2)：92-96．
［6］ SHORE R. A unified treatment of nulling in linear array patterns with minimized weight perturbations ［J］. IEEE Antennas and Propagation Society International Symposium,1982, 20(1): 703-706．
［7］ 罗伯特,蒙津戈. 自适应阵导论［M］.沈铁汉,梁福生,石镇,译. 北京：国防工业出版社,1988: 97-103．
［8］ 杨秀雯,梁立华.数学物理方程与特殊函数［M］. 天津：天津大学出版社,1985: 53-55．
［9］ 曾云宝.智能天线波束赋形算法研究［D］．北京:北京邮电大学,2006: 50-51．
ZENG Yunbao. Investigation of smart antennas beamforming algorithms ［D］. Beijing:Beijing University of Posts and Telecommunications,2006: 50-51．
[1] 陈勋, 张朝阳, 罗海燕. 无线Mesh网络中功率控制、信道分配和调度的联合优化[J]. J4, 2009, 43(8): 1406-1411.