Modeling of RF Power Amplifiers Based on PSO_SVM

In view of the advantages and disadvantages of neural networks and support vector machines in application of RF power amplifier modeling,a novel method for modeling RF power amplifier was proposed based on PSO_SVM algorithm.The principle of support vector machine(SVM)and particle swarm optimization(PSO)were theoretically analyzed,and PSO_SVM algorithm was applied to modeling of power amplifiers.Simulation results showed that the RF power amplifier model based on PSO_SVM was superior to traditional SVM model and BP neural network(BPNN)model,in terms of accuracy,small sample learning and approximation capability.