METHOD AND DEVICE FOR REDUCING MAXIMAL-TO-MEDIUM POWER RATIO IN DIGITAL BROADCAST SYSTEMS Russian patent published in 2004 - IPC

Abstract RU 2234199 C2

FIELD: electronic signal processing including its processing to reduce maximal-to-medium power ratio of radio-frequency signals.

SUBSTANCE: proposed method includes modulation of set of subcarriers with aid of set of data character vectors to produce first modulated signal, limitation of its value, its demodulation, modulation of set of subcarriers with aid of pre-distorted data character vectors to produce second modulated signal, limitation of its value, and reduction of intermodulation components in second limited modulated signal. Proposed transmitters have means for implementing this method.

EFFECT: reduced maximal-to-medium power ratio in orthogonal-frequency multiplexed electronic signals.

28 cl, 16 dwg

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RU 2 234 199 C2

Authors

Shastri Andzhali

Kreger Brajan Vill'Jam

Dates

2004-08-10Published

2000-08-23Filed