Successive Eigenvalue Removal for Multi-Soliton Spectral Amplitude Estimation
Successive Eigenvalue Removal for Multi-Soliton Spectral Amplitude Estimation
Optical nonlinear Fourier transform-based communication systems require an accurate estimation of a signal's nonlinear spectrum, computed usually by piecewise approximation methods on the signal samples. We propose an algorithm, named successive eigenvalue removal, to improve the spectrum estimation of a multi-soliton pulse. It exploits a property of the Darboux transform …