| 摘要 |
<p>The purpose of the invention is to reduce the level of quantification noise when the transmission power varies with frequency. Accordingly, the invention comprises carrying out the power variation in the analog domain by filtering a frequency band and attenuating a complementary band in two signal analog-processing paths. More precisely, the method for reducing the quantification noise for transmitting a multi-carrier signal according to the invention comprises an IFFT conversion step (20), a digital-to-analog conversion step (30) and an analog-processing step (35) of the signal frequencies on a band having a maximal frequency. Moreover, the analog processing step includes at least two processing paths (V1, V2) in parallel to the analog signal, in which: for at least one first path (V1), the signal is filtered (40) so as to retain only the frequencies of a low-frequency band and, in parallel in at least one second path (V2), the signal is subjected to gain, amplification or gain attenuation (50) and, in a final step, the signals from the paths are summed (60).</p> |
