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myhaff
- 哈弗曼编译,能对所有英式字符进行编码,并能根据当前得到的编码文件进行译码。-Havermann compile, able to encode all the British characters, and can be encoded according to the current file decoding.
arithmetic_coder_and_decoder
- 这是一个用Matlab编写的算术编码算法实现,输入编码序列,编码序列中各字符及其的出现次数。-arithmetic coder and decoder by Matlab
filter
- 字符编码过滤,单纯的过滤器,解决乱码问题-Character encoding filter, a simple filter to solve garbage problem
haofuman
- 实现霍夫曼编码 算术编码过程 输入代码中出现的字符-Huffman coding to achieve Arithmetic coding process Enter the characters appear in the code
compression_coding_and_decoding_process
- 压缩编码与解码程序,可以压缩字符型文件,且含有一个测试文件-Compression coding and decoding process
8
- 设计一个理想通信系统,实现信息字符流的传输。 发射器: <1>将消息(字符串形式)编码成一个符号序列; <2>用脉冲成形将串符号序列转变成模拟脉冲信号; <3>将模拟脉冲信号调制到载波信号上。 接收器: <1>对接收的信号进行采样; <2>解调信号成基带信号; <3>将信号恢复成字符串。-Design an ideal communication system, the realiz
huffmancode
- 可以实现对字符或txt文件内容进行Huffman编码-A matlab program that can be achieved for character or content of Huffman coding txt file
arithabcd
- 实现a、b、c、d字符的算术编码,matlab 源程序-arithmetic code of a, b, c and d
DDC
- 通信原理仿真 码型反变换的仿真实现 Ⅰ、基本任务:由抽样判决后的AMI码型和CMI码型数字序列恢复出原始的PCM脉冲编码信号。 主要步骤和要求: (1)由抽样判决后的AMI码型数字序列恢复出原始的PCM脉冲编码信号(0、1信号)。要求抽样判决后的AMI码型数字序列可以是数字型也可以是字符型;要求画出码型反变换前后的波形图。 (2)由抽样判决后的CMI码型数字序列恢复出原始的PCM脉冲编码信号。要求抽样判决后的CMI码型数字序列可以是数字型也可以是字符型;要求画出码型反变换前后
DateStr2Num_debuging
- 日期转换的程序。可将字符型日期转换为数值型。增加了一种常用日期编码格式。建议将其作为mex使用,速度有显著提高。-Date conversion process. Date can be converted to a numeric character. Added a common date code format. Recommend its use as a mex, the speed has improved significantly.
array
- 和Huffman-Tree一样,Shannon-Fano coding也是用一棵二叉树对字符进行编码。但在实际操作中呢,Shannon-Fano却没有大用处,这是由于它与Huffman coding相比,编码效率较低的结果(或者说香农-范诺算法的编码平均码字较大)。-And Huffman-Tree, like, Shannon-Fano coding is using a binary character coding. However, in practice it, Shannon-Fan
huffman
- 哈夫曼编码(Huffman Coding)是一种编码方式,哈夫曼编码是可变字长编码(VLC)的一种。Huffman于1952年提出一种编码方法,该方法完全依据字符出现概率来构造异字头的平均长度最短的码字,有时称之为最佳编码,一般就叫作Huffman编码(有时也称为霍夫曼编码)。-Huffman coding (Huffman Coding) is an encoding, Huffman coding is a variable length coding (VLC) one. A Huffma
huffman-code
- 程序的算法 1)先输入以下字符串和数组,其中sym为字符串中出现的信源符号,p为各符号出现的概率,seq为要进行编码的符号序列。如下所示: 2)初始各字符的区间:a[0,0.1),b[0.1,0.3),c[0.3,0.6),d[0.6,1.0) 3)利用以下公式计算区间的上下限: Li+1=Li+rangei*r_L Hi+1=Li+rangei*r_H -Program Algorithm 1) to enter the following string a
Huffman1
- Huffman于1952年提出一种编码方法,该方法完全依据字符出现概率来构造异字头的平均长度最短的码字,有时称之为最佳编码,一般就叫作Huffman编码-A Huffman coding method proposed in 1952, the occurrence probability of the method is completely based on the average length of the different characters to construct shortes
Huffman2
- Huffman于1952年提出一种编码方法,该方法完全依据字符出现概率来构造异字头的平均长度最短的码字,有时称之为最佳编码,一般就叫作Huffman编码-A Huffman coding method proposed in 1952, the occurrence probability of the method is completely based on the average length of the different characters to construct shortes
huofuman
- 8字符U2信源(即8X8=64),霍夫曼编码,平均码长,编码效率-U2 Huffman
Shannoncode
- 利用matlab读取一段英文文章,对该文章的字符进行香农编码。-Use matlab to read an English article, the characters of the article Shannon code.
huffman
- 该方法完全依据字符出现概率来构造异字头的平均长度最短的码字,有时称之为最佳编码(Completely according to the characters in this method the probability to construct the vision "the average length of the shortest code word, sometimes called the best coding)