TY - GEN
T1 - Localization of the impedance discontinuities for nuclear control cable using instantaneous frequency estimation
AU - Chang, Seun Jin
AU - Choi, Yoon Ho
AU - Shin, Yong June
AU - Park, Jin Bae
PY - 2013
Y1 - 2013
N2 - In this paper, an impedance discontinuities localization for the nuclear control cable using the time-frequency domain reflectometry (TFDR) is proposed. By analyzing characteristics of the target cable, the reference signal is designed. To be prepared for on-voltage experiment, the reference signal is injected into the target cable via capacitive coupler. Using the Wigner distribution, the reflected signal from the impedance discontinuities is analyzed in time-frequency domain. To estimate instantaneous frequency (IF) of the signal, the Wigner-Hough Transform (WHT) is applied to the nuclear cable. Through the estimating time delay between the IF of the reference signal and that of the reflected signal, the impedance discontinuities localization can be measured. The experiment using the TFDR is carried out to localize the impedance discontinuities spot as the end of target cable. Through the experiment, the performance of the proposed TFDR system is verified.
AB - In this paper, an impedance discontinuities localization for the nuclear control cable using the time-frequency domain reflectometry (TFDR) is proposed. By analyzing characteristics of the target cable, the reference signal is designed. To be prepared for on-voltage experiment, the reference signal is injected into the target cable via capacitive coupler. Using the Wigner distribution, the reflected signal from the impedance discontinuities is analyzed in time-frequency domain. To estimate instantaneous frequency (IF) of the signal, the Wigner-Hough Transform (WHT) is applied to the nuclear cable. Through the estimating time delay between the IF of the reference signal and that of the reflected signal, the impedance discontinuities localization can be measured. The experiment using the TFDR is carried out to localize the impedance discontinuities spot as the end of target cable. Through the experiment, the performance of the proposed TFDR system is verified.
KW - Time-frequency domain reflectometry
KW - Wigner-Hough distribution
KW - chrip signal
KW - impedance discontinuities localization
KW - instantaneous frequency estimation
KW - nuclear control cable
UR - http://www.scopus.com/inward/record.url?scp=84893610333&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84893610333&partnerID=8YFLogxK
U2 - 10.1109/ICCAS.2013.6704148
DO - 10.1109/ICCAS.2013.6704148
M3 - Conference contribution
AN - SCOPUS:84893610333
SN - 9788993215052
T3 - International Conference on Control, Automation and Systems
SP - 1280
EP - 1283
BT - ICCAS 2013 - 2013 13th International Conference on Control, Automation and Systems
T2 - 2013 13th International Conference on Control, Automation and Systems, ICCAS 2013
Y2 - 20 October 2013 through 23 October 2013
ER -