Adaptive-Array electron cyclotron emission diagnostics using data streaming in a software defined radio system

H. Idei; K. Mishra; M. K. Yamamoto; M. Hamasaki; A. Fujisawa; Y. Nagashima; Y. Hayashi; T. Onchi; K. Hanada; H. Zushi

doi:10.1088/1748-0221/11/04/C04010

Adaptive-Array electron cyclotron emission diagnostics using data streaming in a software defined radio system

H. Idei, K. Mishra, M. K. Yamamoto, M. Hamasaki, A. Fujisawa, Y. Nagashima, Y. Hayashi, T. Onchi, K. Hanada, H. Zushi

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Measurement of the Electron Cyclotron Emission (ECE) spectrum is one of the most popular electron temperature diagnostics in nuclear fusion plasma research. A 2-dimensional ECE imaging systemwas developed with an adaptive-Array approach. Aradio-frequency (RF) heterodyne detection system with Software Defined Radio (SDR) devices and a phased-Array receiver antenna was used to measure the phase and amplitude of the ECE wave. The SDR heterodyne system could continuously measure the phase and amplitude with sufficient accuracy and time resolution while the previous digitizer system could only acquire data at specific times. Robust streaming phase measurements for adaptive-Arrayed continuous ECE diagnostics were demonstrated using Fast Fourier Transform (FFT) analysis with the SDR system. The emission field pattern was reconstructed using adaptive-Array analysis. The reconstructed profileswere discussed using profiles calculated from coherent single-frequency radiation from the phase array antenna.

Original language	English
Article number	C04010
Journal	Journal of Instrumentation
Volume	11
Issue number	4
DOIs	https://doi.org/10.1088/1748-0221/11/04/C04010
Publication status	Published - Apr 14 2016

All Science Journal Classification (ASJC) codes

Mathematical Physics
Instrumentation

Access to Document

10.1088/1748-0221/11/04/C04010

Cite this

@article{a2949dbde24c4188bcf687dfba9ee24c,

title = "Adaptive-Array electron cyclotron emission diagnostics using data streaming in a software defined radio system",

abstract = "Measurement of the Electron Cyclotron Emission (ECE) spectrum is one of the most popular electron temperature diagnostics in nuclear fusion plasma research. A 2-dimensional ECE imaging systemwas developed with an adaptive-Array approach. Aradio-frequency (RF) heterodyne detection system with Software Defined Radio (SDR) devices and a phased-Array receiver antenna was used to measure the phase and amplitude of the ECE wave. The SDR heterodyne system could continuously measure the phase and amplitude with sufficient accuracy and time resolution while the previous digitizer system could only acquire data at specific times. Robust streaming phase measurements for adaptive-Arrayed continuous ECE diagnostics were demonstrated using Fast Fourier Transform (FFT) analysis with the SDR system. The emission field pattern was reconstructed using adaptive-Array analysis. The reconstructed profileswere discussed using profiles calculated from coherent single-frequency radiation from the phase array antenna.",

author = "H. Idei and K. Mishra and Yamamoto, {M. K.} and M. Hamasaki and A. Fujisawa and Y. Nagashima and Y. Hayashi and T. Onchi and K. Hanada and H. Zushi",

note = "Funding Information: This work was supported in part by the Collaborative Research Program of the Research Institute for Applied Mechanics, Kyushu University, and also by a Grant-in-aid for Scientific Research (S24226020). Publisher Copyright: {\textcopyright} 2016 IOP Publishing Ltd and Sissa Medialab srl.",

year = "2016",

month = apr,

day = "14",

doi = "10.1088/1748-0221/11/04/C04010",

language = "English",

volume = "11",

journal = "Journal of Instrumentation",

issn = "1748-0221",

publisher = "IOP Publishing Ltd.",

number = "4",

}

TY - JOUR

T1 - Adaptive-Array electron cyclotron emission diagnostics using data streaming in a software defined radio system

AU - Idei, H.

AU - Mishra, K.

AU - Yamamoto, M. K.

AU - Hamasaki, M.

AU - Fujisawa, A.

AU - Nagashima, Y.

AU - Hayashi, Y.

AU - Onchi, T.

AU - Hanada, K.

AU - Zushi, H.

N1 - Funding Information: This work was supported in part by the Collaborative Research Program of the Research Institute for Applied Mechanics, Kyushu University, and also by a Grant-in-aid for Scientific Research (S24226020). Publisher Copyright: © 2016 IOP Publishing Ltd and Sissa Medialab srl.

PY - 2016/4/14

Y1 - 2016/4/14

N2 - Measurement of the Electron Cyclotron Emission (ECE) spectrum is one of the most popular electron temperature diagnostics in nuclear fusion plasma research. A 2-dimensional ECE imaging systemwas developed with an adaptive-Array approach. Aradio-frequency (RF) heterodyne detection system with Software Defined Radio (SDR) devices and a phased-Array receiver antenna was used to measure the phase and amplitude of the ECE wave. The SDR heterodyne system could continuously measure the phase and amplitude with sufficient accuracy and time resolution while the previous digitizer system could only acquire data at specific times. Robust streaming phase measurements for adaptive-Arrayed continuous ECE diagnostics were demonstrated using Fast Fourier Transform (FFT) analysis with the SDR system. The emission field pattern was reconstructed using adaptive-Array analysis. The reconstructed profileswere discussed using profiles calculated from coherent single-frequency radiation from the phase array antenna.

AB - Measurement of the Electron Cyclotron Emission (ECE) spectrum is one of the most popular electron temperature diagnostics in nuclear fusion plasma research. A 2-dimensional ECE imaging systemwas developed with an adaptive-Array approach. Aradio-frequency (RF) heterodyne detection system with Software Defined Radio (SDR) devices and a phased-Array receiver antenna was used to measure the phase and amplitude of the ECE wave. The SDR heterodyne system could continuously measure the phase and amplitude with sufficient accuracy and time resolution while the previous digitizer system could only acquire data at specific times. Robust streaming phase measurements for adaptive-Arrayed continuous ECE diagnostics were demonstrated using Fast Fourier Transform (FFT) analysis with the SDR system. The emission field pattern was reconstructed using adaptive-Array analysis. The reconstructed profileswere discussed using profiles calculated from coherent single-frequency radiation from the phase array antenna.

UR - http://www.scopus.com/inward/record.url?scp=85032858433&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85032858433&partnerID=8YFLogxK

U2 - 10.1088/1748-0221/11/04/C04010

DO - 10.1088/1748-0221/11/04/C04010

M3 - Article

AN - SCOPUS:85032858433

SN - 1748-0221

VL - 11

JO - Journal of Instrumentation

JF - Journal of Instrumentation

IS - 4

M1 - C04010

ER -

Adaptive-Array electron cyclotron emission diagnostics using data streaming in a software defined radio system

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this