量化器
编码器、解码器、标量和向量量化器
DSP System Toolbox™ 提供 Simulink® 模块来实现量化器、编码器和解码器。量化器使用量化算法离散化输入信号。编码器模块通过使用不同量化方法对输入数据进行编码来执行数据压缩。解码器模块基于编码的整数输入重新构造量化的浮点值。要了解如何使用标量和向量量化器模块，请参阅Scalar Quantizers and Vector Quantizers。
模块
| G711 Codec | Quantize narrowband speech input signals |
| Quantizer | 按给定间隔将输入离散化 |
| Scalar Quantizer Decoder | Convert each index value into quantized output value |
| Scalar Quantizer Encoder | Encode each input value by associating it with index value of quantization region |
| Uniform Decoder | Decode integer input into floating-point output |
| Uniform Encoder | Quantize and encode floating-point input into integer output |
| Vector Quantizer Decoder | Find vector quantizer codeword that corresponds to zero-based index value |
| Vector Quantizer Encoder | Index of nearest codeword based on Euclidean or weighted Euclidean distance measure |
主题
- Scalar Quantizers and Vector Quantizers
Learn how to use scalar and vector quantizer blocks.
精选示例
Comparison of LDM, CVSD, and ADPCM
Compare three different delta-modulation (DM) waveform quantization/coding techniques.
