Digital Pre-distortion and Hardware Verification
Applikationsberichte
Power amplifier (PA) linearization using digital pre-distortion (DPD) techniques is critical for designers transitioning 3G systems to 3.9G and 4G. This application note introduces the concept behind DPD, as well as how to use the Keysight Technologies, Inc. W1716 SystemVue DPD builder to do hardware verification. This software module implements memory polynomial algorithms to correct wireless components that have analog memory effects. Both simulation-based and test equipment-based extraction and verification are possible. For the purposes of this application note, SystemVue will be used with various Keysight test equipment, including the ESG/PSG/MXG family of signal sources and PSA/MXA/PXA family of analyzers.