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- W2130422479 abstract "A fixed-rate shape-gain quantizer for the memoryless Gaussian source is proposed. The shape quantizer is constructed from wrapped spherical codes that map a sphere packing in /spl Ropf//sup k-1/ onto a sphere in /spl Ropf//sup k/, and the gain codebook is a globally optimal scalar quantizer. A wrapped Leech lattice shape quantizer is used to demonstrate a signal-to-quantization-noise ratio within 1 dB of the distortion-rate function for rates above 1 bit per sample, and an improvement over existing techniques of similar complexity. An asymptotic analysis of the tradeoff between gain quantization and shape quantization is also given." @default.
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- W2130422479 date "2002-11-01" @default.
- W2130422479 modified "2023-10-18" @default.
- W2130422479 title "Gaussian source coding with spherical codes" @default.
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- W2130422479 doi "https://doi.org/10.1109/tit.2002.804056" @default.
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