基于均匀圆阵相位干涉仪的正确解相位模糊概率值方法  

Characterizing and Improving the Probability of Correct Phase Ambiguity Resolution for Uniform Circular Array Phase Interferometers

作　　者：尤明懿 史斌华[1,2] 黄凯 叶云霞 YOU Ming-yi;SHI Bin-hua;HUANG Kai;YE Yun-xia(Science and Technology on Communication Information Security Control Laboratory,Jiaxing 314033,China;The 36^(th)Research Institute of CETC,Jiaxing 314033,China)

机构地区：[1]通信信息控制和安全技术重点实验室,浙江嘉兴314033 [2]中国电子科技集团公司第三十六研究所,浙江嘉兴314033

出　　处：《中国电子科学研究院学报》2021年第10期1038-1046,共9页Journal of China Academy of Electronics and Information Technology

摘　　要：有关均匀圆阵(Uniform Circular Array,UCA)相位干涉仪正确解相位模糊(Correct Phase Ambiguity Resolution,CPAR)方面的研究已经取得了很多理论结果,其中针对正确解相位模糊概率值的数值研究涉及基线公式,阵元数量,半径波长以及相位测量方法。基于均匀圆阵干涉仪上的一些性质,本文提出了三种提高正确解相位模糊概率值的方法。对这些方法的验证实验工作量巨大,但是实验结果有助于对方法进行有效性评估,以及如何在具体工程要求下选择对应算法。Correct phase ambiguity resolution(CPAR)for a uniform circular array(UCA)phase interferometer is formally defined and some theoretic results for CPAR are derived.The probability of CPAR is numerically investigated considering the impact of baseline formulation,number of elements,radius wavelength ratio and phase measuring mechanism.Three methods for improving the probability of CPAR are proposed based on the findings of the characteristics of UCA phase interferometers.An extensive numerical investigation is conducted to validate the effectiveness of the proposed methods.The investigation results validate the effectiveness of the proposed methods and suggest choosing among the three proposed methods by considering the specific needs and engineering limitations.

关 键 词：相位差 相位干涉仪 解模糊 到达方向 

分 类 号：TN911.4[电子电信—通信与信息系统]