单元交叉极化对自适应阵列性能的影响
The effects of element cross-polarization on adaptive array performance
-
摘要: 该文分析了在存在双极化干扰机条件下的自适应阵列的性能。由于接收天线单元交叉极化方向图不一致性的存在,通过改变两正交极化干扰分量之间的相位,可以导致阵列单元之间的幅相不一致发生变化。这种变化是无法用简单的校正固定幅相误差的方法来加以校正的,从而导致自适应阵列的性能下降。
-
关键词:
- 交叉极化; 自适应阵列; 幅相不一致性
Abstract: In this paper, the adaptive antenna array performance is given when the dual polarized jamming signals are considered. If the phases of two polarized elements are changed dnring the adaptive weight calculation, the amplitute and phase errors between the antenna elements will be also changed due to the inconsistaricy of the element cross-polarization. This kind of error can not be corrected and the signal to noise plus interference ratio will be rednced. -
R.A. Monzingo, T. W. Miller, Introduction of Adaptive Array, New York, John Wiley, 1980,Chapter 1, Chapter 3. ［2］L.C. Godara, Error analysis on the optimal antenna array processors, IEEE Trans. on AES,1986, AES-22(2), 395-409.[2]王永良,吴仁彪,通道不一致性、互耦对最优阵列处理器的影响,系统工程与电子技术,1993,15(2),49-55.[3]A.K. Brown, Effects of element cross polarization in adaptive array, IEE-F, Conf. Proc. AP.,1981, No.195, Part 1, 144-148.[4]J.G. Worms, About the influence of polarization agile jammers to adaptive antenna array, IEEE Proc. of Radar 95, U.S.A., 1995, 619-623.[5]C.J. Railton, G. S. Hilton, The analysis of medium-sized arrays of complex element using a combination of FDTD and reaction matching, IEEE Trans. on AP, 1999, AP-47(2), 708-714.[6]黄培康主编,雷达特征信号分析,北京,宇航出版社,1993,249-255.[7]倪晋麟,苏为民,储晓彬,幅相不一致性对自适应阵列性能的影响,应用科学学报,2000,18(3),41-44. -
计量
- 文章访问数: 2297
- HTML全文浏览量: 113
- PDF下载量: 674
- 被引次数: 0
下载:
