On weighted PCM and mean square deviation.

by Richard Ernest Bellman, Robert E. Kalaba

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A proof that the functional equation technique of dynamic programming can be used advantageously in analyzing weighted pulse-code modulation (WPCM) communication systems. WPCM differs from normal PCM in that the amplitude of the transmitted pulses representing the binary digits in a pulse-code group is made to depend on the size of the group and on the power of two represented by the individual pulses.

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