Time-domain reflectometry using arbitrary incident waveforms |
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Authors: | Te-Wen Pan Ching-Wen Hsue Jhin-Fang Huang |
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Affiliation: | Gincom Technol. Corp., Taoyuan; |
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Abstract: | A novel time-domain reflectometry technique is developed for detecting the physical structures of transmission lines by using arbitrary waveforms. By discretizing both incident and reflected waves, we formulate the reflection coefficient of a nonuniform transmission line as a polynomial ratio in the Z-transform, wherein the numerator and denominator represent the reflected and incident waves, respectively. A reconstruction scheme is derived to obtain the characteristic impedance profile of a transmission line. Some examples are presented to illustrate the validity of this new technique. |
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