This paper proposes a method based on baseline-by-baseline convergence to meet the requirements of fast two-dimensional direction-finding of an arbitrary planar array.Firstly,this paper establishes the geometrical and signal models and derives the two-dimensional direction of the arrival formula under the no-phase ambiguity condition.Then,a baseline-by-baseline convergent method is proposed to resolve ambiguity based on the correlation between the baseline template and measured phase difference.Finally,an eight-element arbitrary planar array interferometer verifies the algorithm's effectiveness.The experimental results show that this advanced method can effectively improve the interferometer's two-dimensional direction-finding efficiency by converging the potential angle combination according to the correlation between the phase difference of each baseline template and the measured phase difference.
关键词
干涉仪/测向方法/任意平面阵/相位解模糊/相关干涉仪测向
Key words
interferometer/direction-finding method/arbitrary planar array/phase ambiguity resolution/correlation interferometer direction finding
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