Efficient Power Amplifier Identification Using Modified Parallel Cascade Hammerstein Models
- Resource Type
- Conference
- Authors
- Gadringer, Michael E.; Silveira, Daniel; Magerl, Gottfried
- Source
- 2007 IEEE Radio and Wireless Symposium Radio and Wireless Symposium, 2007 IEEE. :305-308 Jan, 2007
- Subject
- Fields, Waves and Electromagnetics
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Communication, Networking and Broadcast Technologies
Power amplifiers
Power system modeling
Power measurement
Electric variables measurement
Power generation
Signal processing
Radiofrequency amplifiers
Radiofrequency identification
Circuit synthesis
Telephony
Identification
Microwave power amplifiers
Nonlinear system modelings
- Language
- ISSN
- 2164-2958
2164-2974
The automatic generation of behavioral amplifier models based on the measurement of the input and output signals imply demanding requirements for the identification algorithm. In addition to the computational efficiency it is very important that such an algorithm needs only a low number of predefined parameters for the fitting process. To fulfill these requirements we suggest the use of a Modified Parallel Cascade Hammerstein Model (MPCHM). To verify the performance of the presented algorithm the behavior of a 3-stage RF power amplifier (PA) was identified. The resulting model was validated using different measurements with similar statistical properties. Furthermore the static nonlinear contributions were deembedded from both the measured and the modeled output signals to visualize the capability of the MPCHM in predicting the amplifier memory effects.