Method to estimate noise in data

Details Method to estimate noise in data Method to estimate noise in data

2004-12-20

2008-08-19

Lugo, David B (Department: 2611)

Pulse or digital communications

Testing

Signal noise

C375S346000

Reexamination Certificate

active

07415063

ABSTRACT:
A method for estimating uncorrelated noise in a distributed record of data including data samples that represent both signal and noise, provided that the signal is substantially in phase between adjacent data samples. The method begins with dividing the record of data into an even number of equal intervals. The method proceeds compiling a reduced data record by subtracting from every other data sample in the record of data one data sample that is adjacent to it. Finally, the method entails a step of estimating the noise power in the signal relative to the signal power by calculating the standard deviation as a measure of the magnitude of the noise.

REFERENCES:
patent: 4542987 (1985-09-01), Hirschfeld
patent: 4867558 (1989-09-01), Leonard et al.
patent: 5592282 (1997-01-01), Hartog
patent: 6285446 (2001-09-01), Farhadiroushan
patent: 7313167 (2007-12-01), Yoon et al.

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