We present a technique to characterize and correct for linear and weakly nonlinear distortion introduced by the nonideal response of a wideband, high-frequency modulated-signal source. The magnitude and phase relationships between frequency components in a measured modulated signal are maintained by use of a calibrated equivalent-time sampling oscilloscope. The nonidealities of the oscilloscope and other components of the measurement system are corrected during post processing. Determination of the uncertainties in the measurement allows a user to identify distortion introduced by the source separately from that of the receiver.
Conference Dates: April 2-4, 2014
Conference Location: Leuven, -1
Conference Title: The International Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits
Pub Type: Conferences
Digitally modulated signals, nonlinear measurements, oscilloscope, wireless system