Sensing Accuracy Improvement of an OFDM W-band System

This paper presents an approach to improve the sensing accuracy of an orthogonal frequency division multiplexing (OFDM) waveform, based on estimation of delay/Doppler leakages in the channel matrix. Both simulation and proof-of-concept experiment are implemented, and the ranging accuracy improvement is validated in a W-band system, making the proposed approach promising in driving the convergence of OFDM-based sensing and communications.