Description: 利用哈夫曼编码进行通信可以大大提高通信信道利用率,缩短信息传输时间,降低传输成本。这要求在发送端通过一个编码系统将传输数据预先编码;在接收端将传来的数据进行译码(复原)。对于双工信道(即可以双工传输信息的信道),每端都需要一个完整的编/译码系统。为这样的信息收发站设计的一个哈夫曼编/译码系统。-use Huffman coding communication can greatly enhance communication channel utilization, reduced transmission time, and lower transmission costs. This requires the transmitter through a coding system will transmit data in advance coding; The receiving end of the data came decoding (recovery). For dual-channel (that is, information can duplex transmission channel), each side needs a complete encoding/decoding system. For this information hubs designed a Huffman encoding/decoding system. Platform: |
Size: 2048 |
Author:cuckoo |
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Description: ofdm信道编码和译码的源代码,用matlab实现-OFDM channel coding and decoding of the source code, using Matlab to achieve Platform: |
Size: 75776 |
Author:张于 |
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Description: 通过对用硬件描述语言VHDL表示的某个专用部件(如中断控制器、差错控制码编码/译码器,此为译码器)的代码分析,构建它的逻辑结构,加深对相关部件设计技术的理解。
试验平台:MaxPlusII
-through the use of VHDL hardware description language said a special components (such as interrupt controllers, error control coding/decoding devices, such as decoder) code analysis, building its logical structure, deepen the relevant parts design technology understanding. Test Platform : MaxPlusII Platform: |
Size: 29696 |
Author:johnmad |
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Description: [基本要求]
一个完整的系统应具有以下功能:
(1)I:初始化(Initialization)。从终端读入字符集大小n,以及n个字符和n个权值,建立哈夫曼树,并将它存于文件hfmTree中。
(2)E:编码(Encoding)。利用已建好的哈夫曼树(如不在内存,则从文件hfmTree中读入),对文件ToBeTran中的正文进行编码,然后将结果存入文件CodeFile中。
(3)D:译码(Decoding)。利用已建好的哈夫曼树将文件CodeFile中的代码进行译码,结果存入文件TextFile中。
(4)P:印代码文件(Print)。将文件CodeFile以紧凑格式显示在终端上,每行50个代码。同时将此字符形式的编码文件写入文件CodePrin中。
(5)T:印哈夫曼树(Tree printing)。将已在内存中的哈夫曼树以直观的方式(树或凹入表形式)显示在终端上,同时将此字符形式的哈夫曼树写入文件TreePrint中。
[测试数据]
(1)利用下面这道题中的数据调试程序。
某系统在通信联络中只可能出现八种字符,其概率分别为0.25,0.29,0.07,0.08,0.14,0.23,0.03,0.11,试设计哈夫曼编码。
(2)用下表给出的字符集和频度的实际统计数据建立哈夫曼树,并实现以下报文的编码和译码:“THIS PROGRAM IS MY FAVORITE”。-[basic requirements] a complete system should have the following functions : (a) I : initialization (Initialization). Reading from the terminal into the HKSCS size n, and n n characters and the right value, the establishment of Huffman tree. it will be stored in documents hfmTree China. (2) E : coding (Encoding). Use has completed the Huffman tree (if not memory, from hfmTree document reads), the document ToBeTran the encoded text, and then the results were CodeFile posting documents. (3) D : Decoding (Decoding). The use of the completed document will Huffman tree CodeFile the code decoding, results were deposited documents TextFile. (4) P : India source document (Print). CodeFile of documents to compact format in the end, every line 50 code. While this form of characters encoded files int Platform: |
Size: 1013760 |
Author:吕夏琴 |
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