Ambiguity of rotating-element electric-field vector method and elimination method
-
摘要: 对旋转矢量法用于相控阵天线校准时的多解问题及其消除方法进行了研究.采用旋转矢量法对相控阵天线进行校准时会得到两组解,其中一组是伪解.通过理论推导对旋转矢量法中解的二义性进行了分析,给出了两组解的物理意义;然后通过对求解量进行变换给出了一种基于多轮测试的旋转矢量法解的二义性消除方法;最后通过理论分析和数值仿真对该方法的有效性进行了验证.结果表明,通过设置多组不同的初始相位分布,进行多轮旋转矢量测试,可有效消除解的二义性,该方法具有可操作性强、对测试系统要求低等优点.Abstract: Ambiguity of rotating-element electric-field vector (REV) method for calibration of phased array antenna and the elimination method were studied. Two sets of solutions exist for calibration of phased array antenna using the REV method. And one of sets is pseudo solution. Ambiguity and physical interpretation of solutions were studied by the theoretical analysis. In order to eliminate the ambiguity, a novel method was proposed by the variable substitution based on several tests with different phase distributions. Theoretical analysis and simulated results show that the proposed method can eliminate the ambiguity of the REV method effectively. Furthermore, this method has advantages of high operability and low requirement for test system.
-
Key words:
- phased array /
- calibration /
- rotating-element electric-field vector /
- ambiguity
-
[1] Mano S,Katagi T.A method for measuring amplitude and phase of each radiating element of a phased array[J].Electronics and Communication in Japan (IEICE),1982,65(5):58-64 [2] 阎鲁滨.相控阵天线幅相校准的简单方法[J].航天器工程,2006,15(4):43-45 Yan Lubin.A simple calibration method[J].Space Engineering,2006,15(4):43-45(in Chinese) [3] 崔卫东,钟华.基于旋转矢量法的有源相控阵天线中场测量[J].现代电子技术,2011,34(15):117-120 Cui Weidong,Zhong Hua.Mid-field testing for active phased array antenna based on rotating-element electric-field vector[J].Modern Electronics Technique,2011,34(15):117-120(in Chinese) [4] Shitikov A M,Bondarik A V.Multi-element PAA calibration with REV method [C]//IEEE 4th International Conference on Antenna Theory and Techniques (ICATT).Crimea,Ukraine:IEEE,2003:761-764 [5] 刘明罡,冯正和.分组旋转矢量法校准大规模相控阵天线[J].电波科学学报,2007,22(3):380-384 Liu Minggang,Feng Zhenghe.Combined rotating-element electric-field vector(CREV)method for calibration of phased array antenna[J].Chinese Journal of Radio Science,2007,22(3):380-384(in Chinese) [6] Liu Minggang,Feng Zhenghe.Combined rotating-element electric-field vector(CREV)method for nearfield calibration of phased array antenna [C]//IEEE International Conference on Microwave and Millimeter Wave Technology (ICMMT),Guilin,China:IEEE,2007:1-4 [7] Takahashi T,Konishi Y,Chiba I.A novel amplitude-only measurement method to determine element fields in phased arrays[J].IEEE Transaction on Antennas and Propagation,2012,60(7):3222-3230 [8] 方敏.星载相控阵天线波束校正 [D].成都:电子科技大学,电子工程学院,2008 Fang Min.Methods to calibrate phased array antenna of satellite [D].Chengdu:School of Electronic Engineering,University of Electronic Science and Technology of China,2008(in Chinese) [9] Kojima N,Shiramatsu K,Chiba I.Measurement and evaluation techniques for an airborne active phased array antenna[J].IEEE International Symposium on Phased Array Systems and Technology,1996,10:231-236
点击查看大图
计量
- 文章访问数: 2108
- HTML全文浏览量: 190
- PDF下载量: 613
- 被引次数: 0