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Description: 设计一个模块，从一个窜行数据流里检测出码流“11100”，这个模块包括reset,clk,datain及输出端pmatch-design a module from a trip data flow channeling Lane detected bitstream "11100", this module includes reset, clk, datain and output pmatch
Platform: |
Size: 8886 |
Author: 许嘉璐 |
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Description: 设计一个模块，从一个窜行数据流里检测出码流“11100”，这个模块包括reset,clk,datain及输出端pmatch-design a module from a trip data flow channeling Lane detected bitstream "11100", this module includes reset, clk, datain and output pmatch
Platform: |
Size: 8192 |
Author: 许嘉璐 |
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Description: G.729音频压缩、解压缩到Matlab程序。使用方法详见readme文档。-Description
Most of G.729 source code is written in C.But this one is written in matlab.
follow these steps to use it:
1.To coder a speech(ensure it as a row vector variable in matlab),simply type
"G729code(speech)",then you will see a file called coding.bit in your directory.
2.To decoder the codestream.bit,first,copy the file codestream.bit to your G.729decoder directory,you simply type "main",and it will decoder the above file coding.bit to a speech in your matlab(syn_speech).
Platform: |
Size: 239616 |
Author: Zachery Chen |
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Description: 实现简单的LZW压缩算法，LZW压缩算法的基本概念：LZW压缩有三个重要的对象：数据流(CharStream)、编码流(CodeStream)和编译表(String Table)。在编码时，数据流是输入对象（文本文件的据序列），编码流就是输出对象（经过压缩运算的编码数据）；在解码时，编码流则是输入对象，数据流是输出对象；而编译表是在编码和解码时都须要用借助的对象。字符(Character)：最基础的数据元素，在文本文件中就是一个字节；字符串(String)：由几个连续的字符组成； 前缀(Prefix)：也是一个字符串，不过通常用在另一个字符的前面，而且它的长度可以为0；
-Achieve a simple LZW compression algorithm, LZW compression algorithm' s basic concept: LZW compression three important objects: data stream (CharStream) encoded stream (CodeStream) and compile Table (String Table). When coding, the data stream is input to the data sequence of objects (text file), encoded stream output object (after compression operation code data) When decoded, the encoded stream is input object, the data stream is output objects while compiling The table is a need to use a means in the encoding and decoding are objects. Character (Character): The most basic data elements, in the text file is a byte string (String): composition by several successive characters prefix (prefix): is a string, but usually used in another in front of the character, and its length can be 0
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Size: 5142528 |
Author: |
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Description: 本次采用的是LZ78算法，LZ78的编码思想是不断地从字符流中提取新的缀-符串(String)，通俗地理解为新“词条”，然后用“代
号”也就是码字(Code word)表示这个“词条”。这样一来，对字符流的编码就变成了用码字(Code word)去替换字符流(Charstream)，生成码字流(Codestream)，从而达到压缩数据的目的。-The algorithm uses a LZ78, LZ78 coding idea is continually extracted from the new prefix character stream- string (String), popularly understood as a new " entry" and then use the " code" is the code word ( Code word) said this " entry." Thus, the coded character stream into a code word to be replaced by (Code word) character stream (Charstream), the generated code word stream (Codestream), so as to achieve the purpose of data compression.
Platform: |
Size: 4363264 |
Author: 陈娟 |
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