Coded excitation for air-coupled ultrasound phased arrays

Riliang Su; David Lines; Yavor Arnaudov; Lei Kang; Axel Jäger; Han Wang; Sivaram Nishal Ramadas; Mario Kupnik; Steve Dixon

Coded excitation for air-coupled ultrasound phased arrays

Riliang Su, David Lines, Yavor Arnaudov, Lei Kang, Axel Jäger, Han Wang, Sivaram Nishal Ramadas, Mario Kupnik, Steve Dixon

Electronic And Electrical Engineering

Research output: Contribution to conference › Paper › peer-review

4 Citations (Scopus)

Abstract

Coded excitation techniques have been widely used in radar and sonar for improved resolution and noise performance. Whilst becoming more common in medical ultrasound, only few industrial applications have been reported. We present some results from work looking at air-coupled phased arrays aiming at improved air flow speed measurements. The high insertion loss for air-coupled transducers means that coded excitation is desirable and needs to be investigated for arrays. Transducer sensitivity is often optimised at the expense of bandwidth, which can compromise the benefits of coded excitation and this relationship has been examined. The paper reports on the relative performance of Golay codes, and examines the trade-offs with transducer bandwidth.

Original language	English
Publication status	Published - 5 Sept 2017
Event	56th Annual Conference of the British Institute of Non-Destructive Testing, NDT 2017 - Telford, United Kingdom Duration: 5 Sept 2017 → 7 Sept 2017

Conference

Conference	56th Annual Conference of the British Institute of Non-Destructive Testing, NDT 2017
Country/Territory	United Kingdom
City	Telford
Period	5/09/17 → 7/09/17

Keywords

air-coupled phased array
coded excitation
flow measurement

Cite this

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title = "Coded excitation for air-coupled ultrasound phased arrays",

abstract = "Coded excitation techniques have been widely used in radar and sonar for improved resolution and noise performance. Whilst becoming more common in medical ultrasound, only few industrial applications have been reported. We present some results from work looking at air-coupled phased arrays aiming at improved air flow speed measurements. The high insertion loss for air-coupled transducers means that coded excitation is desirable and needs to be investigated for arrays. Transducer sensitivity is often optimised at the expense of bandwidth, which can compromise the benefits of coded excitation and this relationship has been examined. The paper reports on the relative performance of Golay codes, and examines the trade-offs with transducer bandwidth.",

keywords = "air-coupled phased array, coded excitation, flow measurement",

author = "Riliang Su and David Lines and Yavor Arnaudov and Lei Kang and Axel J{\"a}ger and Han Wang and Ramadas, {Sivaram Nishal} and Mario Kupnik and Steve Dixon",

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note = "56th Annual Conference of the British Institute of Non-Destructive Testing, NDT 2017 ; Conference date: 05-09-2017 Through 07-09-2017",

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T1 - Coded excitation for air-coupled ultrasound phased arrays

AU - Su, Riliang

AU - Lines, David

AU - Arnaudov, Yavor

AU - Kang, Lei

AU - Jäger, Axel

AU - Wang, Han

AU - Ramadas, Sivaram Nishal

AU - Kupnik, Mario

AU - Dixon, Steve

PY - 2017/9/5

Y1 - 2017/9/5

N2 - Coded excitation techniques have been widely used in radar and sonar for improved resolution and noise performance. Whilst becoming more common in medical ultrasound, only few industrial applications have been reported. We present some results from work looking at air-coupled phased arrays aiming at improved air flow speed measurements. The high insertion loss for air-coupled transducers means that coded excitation is desirable and needs to be investigated for arrays. Transducer sensitivity is often optimised at the expense of bandwidth, which can compromise the benefits of coded excitation and this relationship has been examined. The paper reports on the relative performance of Golay codes, and examines the trade-offs with transducer bandwidth.

AB - Coded excitation techniques have been widely used in radar and sonar for improved resolution and noise performance. Whilst becoming more common in medical ultrasound, only few industrial applications have been reported. We present some results from work looking at air-coupled phased arrays aiming at improved air flow speed measurements. The high insertion loss for air-coupled transducers means that coded excitation is desirable and needs to be investigated for arrays. Transducer sensitivity is often optimised at the expense of bandwidth, which can compromise the benefits of coded excitation and this relationship has been examined. The paper reports on the relative performance of Golay codes, and examines the trade-offs with transducer bandwidth.

KW - air-coupled phased array

KW - coded excitation

KW - flow measurement

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M3 - Paper

AN - SCOPUS:85032585576

T2 - 56th Annual Conference of the British Institute of Non-Destructive Testing, NDT 2017

Y2 - 5 September 2017 through 7 September 2017

ER -

Coded excitation for air-coupled ultrasound phased arrays

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Conference

Keywords

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