| 摘要 |
<p>The present invention provides a linearization device comprising a predistorsion device (1) for predistorting the signal to be amplified e(t), itself comprising a modulator (2) for modulating the amplitude of the signal to be amplified by a first correction signal q(t) and a modulator (3) for modulating, with carrier suppression, the amplitude of the signal to be amplified, phase shifted by ? by a second correction signal q'(t), the signals q(t) and q'(t) being more especially obtained by making two feed back information signals XS and YS, reflections of the amplitudes of the amplified signal S(t) with respect to two real orthogonal components coming respectively from the real part and from the imaginary part of the transfer function of the amplifier (12) to be linearized, dependent on two similar information signals , reflections of the signal to be amplified e(t).</p> |
