ANALYSIS OF NON-LINEAR SIGNAL DISTORTION IN TRAVELING-WAVE-TUBE AMPLIFIER
The modeling of traveling-wave-tube amplifier (TWTA) non-linear gain transfer response impact on the accuracy of communication satellite payload channel data transfer in single-carrier mode is proposed. The created models adequately describe TWTA link. A crucial task of making performance budget margin at satellite network design is solved. It is shown how bit error rate (BER) and E <sub>b</sub>/N <sub>0</sub> correlation changes depending on TWTA gain transfer response reference point choice.