TY - GEN
T1 - Load impedance measurement on a coaxial cable via time-frequency domain reflectometry
AU - Kwak, Ki Seok
AU - Yoon, Tae Sung
AU - Park, Jin Bae
PY - 2006
Y1 - 2006
N2 - In this paper, a new signal processing based methodology which is able to measure a load impedance with high accuracy and resolution is implemented. This methodology is characterized by a chirp signal with Gaussian envelope which enables one to achieve time localization and to assign energy in the frequency band of interest at the same time. For an evaluating the reflection coefficient and estimating the fault distance on a cable a normalized time-frequency cross-correlation function is utilized, and a cross time-frequency distribution function is used to acquire the phase difference between the input and the reflected signals. The real impedance measurement experiments have been carried out using a time-frequency domain reflectometry (TFDR) system on a coaxial cable with various sorts of terminal resistors. The experimental results of the TFDR based impedance measurement are compared with those of the commercial time domain reflectometry (TDR). The proposed TFDR based impedance measurement methodology shows that it is able to evaluate the location of fault on a coaxial cable and it can offers information of the fault as the load impedance.
AB - In this paper, a new signal processing based methodology which is able to measure a load impedance with high accuracy and resolution is implemented. This methodology is characterized by a chirp signal with Gaussian envelope which enables one to achieve time localization and to assign energy in the frequency band of interest at the same time. For an evaluating the reflection coefficient and estimating the fault distance on a cable a normalized time-frequency cross-correlation function is utilized, and a cross time-frequency distribution function is used to acquire the phase difference between the input and the reflected signals. The real impedance measurement experiments have been carried out using a time-frequency domain reflectometry (TFDR) system on a coaxial cable with various sorts of terminal resistors. The experimental results of the TFDR based impedance measurement are compared with those of the commercial time domain reflectometry (TDR). The proposed TFDR based impedance measurement methodology shows that it is able to evaluate the location of fault on a coaxial cable and it can offers information of the fault as the load impedance.
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U2 - 10.1109/SICE.2006.315583
DO - 10.1109/SICE.2006.315583
M3 - Conference contribution
AN - SCOPUS:34250733419
SN - 8995003855
SN - 9788995003855
T3 - 2006 SICE-ICASE International Joint Conference
SP - 1643
EP - 1646
BT - 2006 SICE-ICASE International Joint Conference
T2 - 2006 SICE-ICASE International Joint Conference
Y2 - 18 October 2006 through 21 October 2006
ER -