Figure 5From: A Ramp Cosine Cepstrum Model for the Parameter Estimation of Autoregressive Systems at Low SNREstimation results for a natural speech phoneme in the presence of white noise at dB. (a) PSD obtained by using different methods, (b) Average estimated poles () obtained from noise-corrupted speech by using the proposed method along with the noise-free estimates () obtained by the MLSYW method, spectrogram of the noise-free speech, and noise-free PSD.Back to article page