Codifica della sorgente
R2024aFormattare i segnali per l'elaborazione
Applicare varie codifiche della sorgente per formattare i segnali in base a partizioni rappresentative, mappatura specifica del codebook, compressione, espansione, companding e quantizzazione.
Funzioni
arithdeco | Decode binary code by arithmetic decoding |
arithenco | Encode sequence of symbols by arithmetic encoding |
compand | Source coding mu-law or A-law compressor or expander |
dpcmdeco | Decode using differential pulse code modulation |
dpcmenco | Encode using differential pulse code modulation |
dpcmopt | Optimize differential pulse code modulation parameters |
huffmandeco | Decode binary code by Huffman decoding |
huffmandict | Generate Huffman code dictionary for source with known probability model |
huffmanenco | Encode sequence of symbols by Huffman encoding |
lloyds | Optimize quantization parameters using Lloyd algorithm |
quantiz | Produce quantization index and quantized output value |
Oggetti
comm.DifferentialDecoder | Decode binary signal using differential decoding |
comm.DifferentialEncoder | Encode binary signal using differential coding |
Blocchi
 | A-Law Compressor | Implement A-law compressor for source coding |
 | A-Law Expander | Implement A-law expander for source coding |
 | Differential Decoder | Decode binary signal using differential coding |
 | Differential Encoder | Encode binary signal using differential coding |
 | Mu-Law Compressor | Implement µ-law compressor for source coding |
 | Mu-Law Expander | Implement µ-law expander for source coding |
 | Quantizing Decoder | Decode quantization index according to codebook |
 | Quantizing Encoder | Quantize signal using partition and codebook |
Argomenti
- Quantize and Compand an Exponential Signal
- Differential Pulse Code Modulation
Use DPCM as a predictive quantization method.
- Quantization
Quantize data to improve signal sampling efficiency in communications systems.
