Patent Document ID: 20070075770
Application ID: 10511927
Patent Flag: 0

Claim One:
1. A BDPD-based (Base-band Digital Pre-Distortion) method for improving efficiency of RF power amplifier, comprising: (1) Determining structural parameters of a neural network as required and establishing the neural network, inputting modeling data and initial values of network parameters required for establishing the neural network model of the RF power amplifier; (2) Propagating forward with the input data and network parameters, calculating the difference between output value of the neural network and the expected output value, then propagating backward along the neural network with said difference to correct the network parameters; (3) Determining whether said difference meets the specified criterion; if so, outputting the neural network model of the RF power amplifier and going to step (4), otherwise inputting the corrected network parameters to the neural network and going to step (2); (4) Solving the pre-distortion algorithm of the RF power amplifier with said neural network model; (5) Carrying out pre-distortion processing for input signal of the RF power amplifier with said pre-distortion algorithm and then feeding them to the RF power amplifier.