-
PCM
说明： 利用Matlab仿真脉冲编码调制（PCM）及A律、μ律PCM对声音进行压缩编解码过程。
脉冲编码调制（PCM，Pulse Code Modulation）是一种将模拟语音信号转换成数字信号的编码方式。波形编码器的作用是对采样后的信号样本进行量化和编码。从数学上来看，量化过程就是把一个连续幅度值的无限数集合映射成一个离散幅度值的有限数集合，编码就是用一组二进制数来表示这些映射后的有限数。国际标准化的PCM采用折叠二进制码，符合长途电话质量。根据量化方法的不同，PCM可分为均匀量化PCM和对数PCM两大类，对数PCM中，2Aμ律和律编码都已被定为国际标准。(Matlab simulation using pulse code modulation (PCM) and the A law, μ law PCM codec for voice compression process.
Pulse Code Modulation (PCM, Pulse Code Modulation) is an analog voice signal into digital signal encoding. The role of the encoder waveform is sampled signal sample quantization and coding. From the mathematical point of view, the process is to quantify the magnitude of the value of a continuous set of infinite number of maps into a finite number of discrete set of amplitude values , encoding is to use a set of binary digits, said after a limited number of these maps. By folding the International Standardization of PCM binary code, in line with long-distance telephone quality. According to the different quantitative methods, PCM can be divided into uniform quantization PCM PCM and the number of two categories, on the number of PCM in, 2Aμ law and legal codes have been designated as international standards.)
- 2011-04-14 12:06:33下载
- 积分：1
-
Tap-47
and describe and describe and describe
- 2011-04-21 01:45:06下载
- 积分：1
-
chepaidingweiyuzifugenge
车牌定位与字符分割、字符识别matlab程序(License plate location and character segmentation, character recognition matlab program)
- 2015-04-21 11:28:28下载
- 积分：1
-
project_qpsk_system
Project about system for detection of wireless signals.
- 2014-02-07 21:54:12下载
- 积分：1
-
MAIN
this is the fifth file of coding in matlab
- 2011-05-17 02:08:35下载
- 积分：1
-
cos_value
用于生成FPGA中RAM所需要的初始化文件dds.mif,此文件生成的是余弦波形。(This document of .m can generate document of .mif to provide data for RAM of FPGA.)
- 2013-09-05 09:54:20下载
- 积分：1
-
footprint
matlab实现的视频指纹采集，可以用指纹来辨别两个视频是否相似(matlab achieve video fingerprint acquisition, can be used fingerprints to identify the two video whether similar)
- 2013-03-14 17:02:28下载
- 积分：1
-
twopwm
自己所搭的模型，适应于电力系统方向的进行参考，模型完全可运行且性能良好，希望大家支持。(Take their own models to adapt to make reference to the direction of the power system, the model is fully operational and performance is good, I hope you will support.)
- 2015-04-04 16:30:00下载
- 积分：1
-
MATLAB
利用matlab进行四种理想滤波器滤波，很不错的呀(nothing)
- 2010-07-01 09:36:08下载
- 积分：1
-
FrequencyFilt
用于滤波作用的 在做纹理回复的时候需要用到(Filtering role for the texture back in to do the time needed)
- 2009-05-25 18:22:54下载
- 积分：1
