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Threshold extension in weighted PCM with arbitrary probability distribution and nonuniform quantization (Corresp.)

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1 Author(s)

The threshold in the output signal-to-noise ratio (SNR) of weighted pulse-code modulation (PCM) is determined for an arbitrary probability distribution of the input signal and a logarithmic quantizer. Numerical results are given which show a reduction of 5.37 dB in the threshold, relative to classical PCM, for a nonuniform probability distribution and a logarithmic quantizer.

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Information Theory, IEEE Transactions on  (Volume:26 ,  Issue: 2 )