Method for calculating real-time compensation coefficients in the nonlinear distortion compensation (DPD) processing unit.

Abstract

This invention proposes a method for calculating the real-time compensation coefficient in a digital predistortion (DPD) processing unit used in terrestrial digital television (DVB-T2) systems. The method plays a crucial role in minimizing signal errors, increasing signal decoding capabilities at the receiver, improving the performance of the power amplifier, and enabling the DPD to process signals at real-time speed. The method is implemented in three steps: step 1: data preprocessing and calculation of initial values; step 2: real-time calculation of the DPD compensation coefficient and real-time updating in the programmable logic device; step 3: updating the DPD compensation coefficient values ​​in the component functional units.

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