Amplifiers – Hum or noise or distortion bucking introduced into signal...
Patent
1997-08-06
1999-07-27
Pascal, Robert
Amplifiers
Hum or noise or distortion bucking introduced into signal...
455126, H03F 126
Patent
active
059297034
ABSTRACT:
A method of modeling the AM--AM and AM-PM characteristics of an amplifier includes the step of transmitting a reference signal to the amplifier. The response of the amplifier to the reference signal is digitized to produce two sets of AM--AM and AM-PM reference samples, respectively. Two series of polynomials respectively representative of the AM--AM and the AM-PM characteristics are determined from the samples. The determination of each polynomial allows for the second derivative of the polynomial and for the distances between the samples and points on the curve defined by the polynomial.
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Marchesani Rossano
Sehier Philippe
Alcatel Telspace
Nguyen Khanh Van
Pascal Robert
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