Signal distortion characterization and correction using pilot chirp pulse train for free-running clock synchronization

Motivation: to investigate a pilot signal that emulates acquisition bandwidth for reliable frequency offset tracking and corrections of an asynchronous receiver. Goal(s): to achieve successful on-coil digitizer operation over a wireless MRI data link. Approach: by creating synchronous and asynchronous time series using two software-defined radios with pre-defined chirp pulse train and characterizing and correcting distortions on images. Results: Chirp pulse train can emulate image acquisition bandwidth and correct offsets, exhibiting non-coherent residual artifacts when unmixing. Impact: Pilot chirp can improve the usability of tracking and correcting offset distortions associated with asynchronous free-running receivers.