Oversampled filter banks: optimal noise shaping, design freedom, and noise analysis
نویسندگان
چکیده
We show that oversampled filter banks FBs) offer more design freedom and less noise sensitivity t 6 an critically sampled FBs. We provide a parameterization of all synthesis FBs satisfyin perfect reconstruction for a given oversampled analysis FE, and we derive bounds and expressions for the variance of the reconstruction error due to noisy subband signals. Finally, we introduce noise shaping in oversampled FBs and calculate the optimal noise shaping system.
منابع مشابه
Oversampled Filter Banks : Optimal Noise Shaping
|We show that oversampled lter banks (FBs) offer more design freedom and less noise sensitivity than critically sampled FBs. We provide a parameterization of all synthesis FBs satisfying perfect reconstruction for a given oversampled analysis FB, and we derive bounds and expressions for the variance of the reconstruction error due to noisy subband signals. Finally, we introduce noise shaping in...
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