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Signal-to-Noise Ratio Formulas of a Scalar Gaussian Quantizer Mismatched to a Laplacian Source
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 Title & Authors
Signal-to-Noise Ratio Formulas of a Scalar Gaussian Quantizer Mismatched to a Laplacian Source
Rhee, Ja-Gan; Na, Sang-Sin;
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 Abstract
The paper derives formulas for the mean-squared error distortion and resulting signal-to-noise (SNR) ratio of a fixed-rate scalar quantizer designed optimally in the minimum mean-squared error sense for a Gaussian density with the standard deviation when it is mismatched to a Laplacian density with the standard deviation . The SNR formulas, based on the key parameter and Bennett's integral, are found accurate for a wide range of . Also an upper bound to the SNR is derived, which becomes tighter with increasing rate R and indicates that the SNR behaves asymptotically as dB.
 Keywords
Gaussian Quantizer;Laplacian source;the mean-squared error distortion;shape mismatch;SNR formulas;
 Language
English
 Cited by
 References
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