H - Electricity – 03 – F
Patent
H - Electricity
03
F
H03F 1/32 (2006.01) H04J 1/02 (2006.01)
Patent
CA 2714786
The invention relates to a method and circuit for linearizing amplifiers and other nonlinear circuits for multi-carrier signals. An output signal from the amplifier is sampled, and a correlation matrix of size NxN is computed from the sampled signal, wherein N exceeds the number of multiplexed carriers in the signal. A signal-to-distortion ratio (SDR) is then estimated based on a ratio of one or more largest to one or more smallest eigenvalues of the correlation matrix, and the signal into the amplifier is pre-distorted so as to maximize the SDR.
Caron Mario
Huang Xinping
Zhu Zhiwen
Her Majesty The Queen In Right Of Canada As Represented By The Minister Of Industry Through The Communica
Teitelbaum & Maclean
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