Method and system to provide an improved time domain...

Details Method and system to provide an improved time domain... Method and system to provide an improved time domain...

2005-02-15

2005-02-15

McElheny, Jr., Donald E. (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system

Dimensional determination

C324S642000

Reexamination Certificate

active

06856936

ABSTRACT:
Systems and methods to identify an event(s) representing a discontinuity in the impedance of a transmission line such as a wire cable using time domain reflectrometry (TDR) are presented. According to an exemplary embodiment, multiple layers of digital signal processing techniques are implemented in an algorithm that combats the smearing effect of a wide launch pulses with the reflection due to an event. The algorithm focuses on wavelet decomposition and additional post processing to produce a well-defined signal that allows easy identification of the reflected signal while preserving critical information, such as the location of the event and relative signal strength.

REFERENCES:
patent: 5321632 (1994-06-01), Otsuji et al.
patent: 5479251 (1995-12-01), Hanson
patent: 5600248 (1997-02-01), Westrom et al.
patent: 6385561 (2002-05-01), Soraghan et al.
patent: 6393316 (2002-05-01), Gillberg et al.
patent: 6538451 (2003-03-01), Galli et al.
patent: 6646451 (2003-11-01), Lanan
Gu et al., Estimation and Detection in OTDR Using Analyzing Wavelets, 1994 IEEE.*
Sarkar et al., A Tutorial on Wavelets from an Electrical Engineering Perspective, Part 2: The Continuous Case, 1998, IEEE.*
Liu et al., Detection and Estimation of Conection Splice Events in Fiber Optics Given Noisy OTDR Data—Part I: GSR/MDL Method, Feb. 2001, IEEE.*
Kim et al., Adaptive Processing Using a Single Snapshot for a Nonuniformly Spaced Array in the Presence of Mutual COupling and Near-Field Scatterers, May 2002, IEEE Transactions on Antennas and Propagation, vol. 50, No. 5.

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