Communications Blockset™

Quantizing Decoder - Decode quantization index according to codebook

Library

Source Coding

Description

The Quantizing Decoder block converts quantization indices to the corresponding codebook values. The Quantization codebook parameter, a vector of length N, prescribes the possible output values. If the input is an integer k between 0 and N-1, then the output is the (k+1)st element of Quantization codebook.

The input can be either a scalar, a vector, or a matrix. The input must be a discrete-time signal. This block processes each vector element independently.

Note   The Quantizing Encoder block also uses a Quantization codebook parameter. The first output of that block corresponds to the input of Quantizing Decoder, while the second output of that block corresponds to the output of Quantizing Decoder.

Dialog Box

Quantization codebook

A real vector that prescribes the output value corresponding to each nonnegative integer of the input.

Pair Block

Quantizing Encoder

See Also

Scalar Quantizer (Signal Processing Blockset™ documentation)

QPSK Modulator Baseband

Quantizing Encoder