Communications Blockset

Source Coding

This blockset supports companders, scalar quantization and predictive quantization. You can open the Source Coding library by double-clicking on its icon in the main Communications Blockset library (commlib), or by typing commsrccod2 at the MATLAB prompt.

Note    In this document, you can jump to a block's reference page by clicking on its icon below.

The table below lists and describes the blocks in the Source Coding library. For information about a specific block, see the reference pages that follow.

Block Name	Purpose
A-Law Compressor	Implement A-law compressor for source coding
A-Law Expander	Implement A-law expander for source coding
Differential Decoder	Decode a binary signal using differential coding technique.
Differential Encoder	Encode a binary signal using differential coding technique.
DPCM Decoder	Decode differential pulse code modulation
DPCM Encoder	Encode using differential pulse code modulation
Mu-Law Compressor	Implement µ-law compressor for source coding
Mu-Law Expander	Implement µ-law expander for source coding
Quantizer Decode	Decode quantization index according to codebook
Sampled Quantizer Encode	Quantize a signal, indicating quantization index, coded signal, and distortion
Enabled Quantizer Encode	Quantize a signal, using trigger to control processing

Communications Sinks

Error Detection and Correction