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Determining Volterra Kernels for Nonlinear RF Power Amplifiers (.PDF Download)

The two methods presented in this article estimate first-, third-, and fifth-order Volterra kernels for an RF power amplifier (PA) using common RF laboratory instruments. In the first method, single measurement readings are employed to determine the kernels, while the second approach utilizes least-squares curve adaptation of measured data. Comparisons between the two methods discussed here and others described in existing publications reveal that these methods are easier to perform.

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