电讯技术2025，Vol.65Issue(8)：1300-1305,6.DOI:10.20079/j.issn.1001-893x.250223003
非对称任意阵列干涉仪测向方法
A Direction Finding Method of Asymmetric Arbitrary Array Interferometers
摘要
Abstract
For the issues in current interferometer direction finding(DF)technology where DF accuracy and ambiguity resolution probability are susceptible to baseline selection,as well as limitations in antenna array element size and detection range,an asymmetric interferometer DF method is proposed.This method significantly optimizes DF performance by constructing a geometrically asymmetric gain array combined with a two-dimensional DF method,which is universally applicable to any planar array interferometer.Specifically,it leverages the signal correlation from high-gain antennas to extract phase difference information between interferometer arrays,constructs a phase difference cost function,and employs a least variance iterative algorithm for accurate calculation of the wave azimuth.Experimental results demonstrate that,compared with traditional interferometers,this method achieves over a doubling of detection range and has no special requirements for the configuration of the interferometer array.Furthermore,this method does not require deliberate resolution of phase difference ambiguity issues,and its DF accuracy is within 0.1° of the traditional interferometer DF error.关键词
平面阵列/干涉仪测向/二维测向/增益非对称Key words
planar array/interferometer direction finding/two-dimensional direction finding/asymmetric gain分类
信息技术与安全科学引用本文复制引用
朱子翰..非对称任意阵列干涉仪测向方法[J].电讯技术,2025,65(8):1300-1305,6.
