Method and device for setup of clipping noise of a multicarrier

Details Method and device for setup of clipping noise of a multicarrier Method and device for setup of clipping noise of a multicarrier

1997-12-31

2000-03-14

Chin, Stephen

Pulse or digital communications

Systems using alternating or pulsating current

Antinoise or distortion

375296, 327310, 327317, H04B 1500, H04L 2549, H03K 508

Patent

active

060382619

ABSTRACT:
The present invention relates to a method for setup of a signal in multicarrier modulation, including clipping the signal, in amplitude, with respect to a threshold value, and of reinjecting, with a delay and on the signal to be set up, a clipping noise redistributed, at least partly, outside the useful slip of the signal in multicarrier modulation.

REFERENCES:
patent: 4268855 (1981-05-01), Takahashi
patent: 5768318 (1998-06-01), Mestdagh
patent: 5787113 (1998-07-01), Chow et al.
patent: 5835536 (1998-11-01), May et al.
French Search Report from French Patent Application 96 16379, filed Dec. 31, 1996.
Mestdagh, D.J., et al., "Analysis Of Clipping Effect In DMT-Based ADSL Systems" Communications Supercomm, vol. 1, May 1, 1994.
O'Neill R., et al., "Performance of Amplitude Limited Multitone Signals", Proceedings Of The Vehicular Technology Conference, Stockholm, Jun. 8-10, 1994, vol. 3, Jun. 8, 1994, Institute of Electrical and Electronics Engineers, pp. 1675-1679.
Wulich: "Peak Factor In Orthogonal Multicarrier Modulation With Variable Levels", Electronics Letters, vol. 32, No. 20, Sep. 26, 1996, pp. 1859-1861.

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