Detection of Branch Points by Modified FFT

Fung Itseng; Tapan K. Sarkar

doi:10.1109/TGRS.1983.350509

Detection of Branch Points by Modified FFT

Fung Itseng, Tapan K. Sarkar

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Abstract

This paper illustrates the existence of branch points in transients on lossy transmission lines and presents a technique of detecting branch points. By applying modified FFT to the transient signal and from the resulting amplitude and phase spectra, it is possible to detect and distinguish banch points from poles. Numerous examples are given to demonstrate the effectiveness of the modified FFT and the use of windowing in improving the detectability of a small branch point under the influence of a nearby strong pole.

Original language	English (US)
Pages (from-to)	468-472
Number of pages	5
Journal	IEEE Transactions on Geoscience and Remote Sensing
Volume	GE-21
Issue number	4
DOIs	https://doi.org/10.1109/TGRS.1983.350509
State	Published - Oct 1983
Externally published	Yes

ASJC Scopus subject areas

Electrical and Electronic Engineering
General Earth and Planetary Sciences

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10.1109/TGRS.1983.350509

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title = "Detection of Branch Points by Modified FFT",

abstract = "This paper illustrates the existence of branch points in transients on lossy transmission lines and presents a technique of detecting branch points. By applying modified FFT to the transient signal and from the resulting amplitude and phase spectra, it is possible to detect and distinguish banch points from poles. Numerous examples are given to demonstrate the effectiveness of the modified FFT and the use of windowing in improving the detectability of a small branch point under the influence of a nearby strong pole.",

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AU - Sarkar, Tapan K.

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AB - This paper illustrates the existence of branch points in transients on lossy transmission lines and presents a technique of detecting branch points. By applying modified FFT to the transient signal and from the resulting amplitude and phase spectra, it is possible to detect and distinguish banch points from poles. Numerous examples are given to demonstrate the effectiveness of the modified FFT and the use of windowing in improving the detectability of a small branch point under the influence of a nearby strong pole.

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JO - IEEE Transactions on Geoscience and Remote Sensing

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Detection of Branch Points by Modified FFT

Abstract

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