| 摘要 |
<p>A method of setting up a linearising circuit such as a linear power amplifier is described. According to the method, an input signal is supplied at a low, starting power level and is slowly increased during set-up until it attains an operational level for normal use. The advantage of this is that a pilot tone used in the linearising circuit can be readily detected during set-up because its amplitude is above that of the low, starting power level of the input signal. A feed-forward linearising system and a transmission system utilising the technique are described.</p> |
