Patent ID: 8415941
Filing Date: 2013-04-09
Classification: G01R,H03L

Abstract:
1. A method, comprising: generating a sinusoidal waveform using a first waveform generator associated with a first direct digital synthesizer (DDS) for input to a differential amplifier; generating, via a second waveform generator associated with a second DDS, a phase and amplitude matched sinusoidal waveform through a bandpass filter for input to the differential amplifier; amplifying a difference between the sinusoidal waveform and the matched sinusoidal waveform via the differential amplifier to generate an amplified output; storing the amplified output generated by amplifying the difference between the sinusoidal waveform and the matched sinusoidal waveform via the differential amplifier; and determining at least one of an amplitude and a phase of a spurious frequency component based upon, at least in part, a Discrete Fourier Transform (DFT) associated with the stored amplified output.