Fortune Telling Collection - Zodiac Guide - What are the characteristics of the constellation when the carriers are not synchronized?

What are the characteristics of the constellation when the carriers are not synchronized?

What are the characteristics of the constellation when the carriers are not synchronized?

1, white noise interference: the noise is random, and the landing point will be distributed around the ideal value like a cloud.

2. Phase noise interference: Due to the poor modulator, the constellation rotates around the center, and the signal strength is the radius of the rotation diagram.

3. Gain compression: Asymmetric constellation appears due to signal compression distortion. The larger the QAM peak, the greater the distortion.