Simultaneous estimation of chirp-mass and Keplerian eccentricity from Time-Frequency representations of chirping gravitational waves.

Time/Frequency (T/F) representations are a powerful and versatile tool for handling non-stationary signals, including the chirping gravitational waves produced by inspiraling binary systems. Recent improvements in T/F representations, based in particular on the compressed-sensing paradigm, allow the simultaneous estimation of the source Keplerian chirp-mass and orbital eccentricity (at some reference time) by straightforward re-mapping of the T/F data into the chirp-mass/eccentricity plane. The accuracy of the proposed T/F method, and its robustness against non-ideal background-noise features, are demonstrated by numerical simulations.