Difference in signal Spectrum [
Here are two figures from the same signal, the 2nd one(B) is after digital predistortion at transmitter end. How can you describe it? What are the improvements and advantages of this technique?
Much appreciate your answers.
It is a frequency dependent gain to compensate attenuation of the high frequencies in the signal band (&lt; 0.6Hz). As a side effect it also increases the background noise (&gt;0.6 Hz)