Abstract: This paper presents a novel ultrasonic phased array scanning method for the internal of gas pipelines. The proposed method achieves a complete scanning of the pipeline interior by ...

Abstract: In this paper, we consider the problem of array gain-phase error self-calibration and direction of arrival (DOA) estimation for uniform linear arrays. We ...

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1 School of Architectural Engineering, Huanghuai University, Zhumadian, China 2 Henan International Joint Laboratory of Structural Mechanics and Computational Simulation, Huanghuai University, ...