Parameter estimation of superimposed damped sinusoids using exponential windows
A new preprocessing technique for parameter estimation of superim-posed exponentially damped sinusoids is proposed. The technique is based on cyclo-stationarity, and its extension expo-nential windowing (EW). An ad-hoc but efficient approach for the EW parameter selection isprovided and shown to provide close to CRB performance. Simulation results show that the proposed method significantly im-proves the robustness to noise over two other common preprocessing techniques. The method is particularly effective with non-Gaussian and colored noise.
exponentially damped sinusoids colored noise cyclo-stationarity complex exponential windowing cramrrao bound