Embedded system to characterize HPA and calculate nonlinear predistortion neural network's weights for HPA

A major concern relating to the transmission of satellite has been the linearity of available high power amplifier (HPA). Travelling wave tube amplifier (TWTA) offer the greatest efficient and power capacity, but are some limited in linearity. The paper discuss the development a synthetic instrument with most advance DSP, FPGA and very fast DAC - A/D to generate, capture and calculation for BER, EVM as stated in L.H. Tran et al. (2003).The system can configurable to calculate nonlinear pre-distortion neural network's weights for RF power amplifier.