Noise analysis in a communication system

Details Noise analysis in a communication system Noise analysis in a communication system

2002-10-18

2009-02-17

Mattis, Jason E (Department: 2416)

Multiplex communications

Generalized orthogonal or special mathematical techniques

Fourier transform

C370S252000, C370S485000

Reexamination Certificate

active

07492703

ABSTRACT:
A system is provided to automatically estimate performance of a receiver for receiving input signals, the input signals having a carrier frequency and a baud rate, from a channel in a communication system and the effect of highly correlated noise cancellation on performance of the receiver, while no active transmission is occurring on the channel, comprising: a digital front end in the receiver for receiving samples of the input signals; a predictor coupled to the digital front end for predicting highly correlated noise in a second sample of the input signal; and a subtraction unit coupled to the predictor for subtracting the predictor output from the second sample to determine residual noise in the second sample. Other systems and methods are disclosed.

REFERENCES:
patent: 5392040 (1995-02-01), Hayashi
patent: 5937070 (1999-08-01), Todter et al.
patent: 6178161 (2001-01-01), Terry
patent: 7058141 (2006-06-01), Nedic
patent: 2002/0086641 (2002-07-01), Howard
“Detection and Classification of RF Impairments for Higher Capacity Upstreams Using Advanced TDMA,” NCTA 2002 Proceedings, May 7-10, 2002 (Daniel Howard—Broadcom Corporation).

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