-
200430481
赫夫曼编译码器:
用哈夫曼编码进行通信可以大大提高信道利用率,缩短信息传输时间,降低传输成本。但是,这要求在发送端通过一个编码系统对待传数据预先编码,在接收端将传来的数据进行译码(复原)。对于双工信道(即可以双向传输信息的信道),每端都需要一个完整的编/译码系统。试为这样的信息收发站写一个哈夫曼码的编/译码系统。
[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)显示出,同时将此字符形式的哈夫曼树写入文件TreePrint中。()
- 2021-03-06 09:19:30下载
- 积分:1
-
3542600_d04376dd2aa0bb13cfe65f01dc4a5e48
说明: fxstabilizer-ea-fx84netFXS.dll, 3485696 , 2015-09-17
fxstabilizer-ea-fx84netstabilizator.ex4, 72650 , 2015-09-17
- 2019-05-01 18:22:06下载
- 积分:1
-
TwIST_v1
基于两步迭代收缩法和复数小波的压缩传感
图像重构
( Based on two-step iterative shrinkage method and the complex wavelet compression sensor
Image reconstruction
)
- 2009-11-10 15:01:16下载
- 积分:1
-
huffman
各处图像的压缩算法霍夫曼编码全了。
(A variety of image compression program Hoffman trip forecast full!)
- 2021-04-01 16:49:10下载
- 积分:1
-
DTCWT
双树复小波变换具有平移不变性、方向选择性等特点,适合进行图像压缩,优于传统离散小波变换方法。(The DT-CWT is suitable to image compression processing because of its shift invariance and directional selectivity. It is preferable to traditional Discrete Wavelet Transform(DWT). )
- 2020-10-05 10:37:38下载
- 积分:1
-
zip4j
从Zip文件创建,添加,提取,更新,删除文件
读/写密码保护的Zip文件
支持AES 128/256加密
支持标准邮??编加密
支持Zip64格式
支持存储(无压缩)和Deflate压缩方法
从Split Zip文件创建或提取文件(例如:z01,z02,... zip)
支持Unicode文件名
进度监视器(Create, add, extract, update, delete files from Zip files
Read/write password-protected Zip files
Support for AES 128/256 encryption
Supporting Standard Postal Encryption
Support Zip64 format
Supporting storage (uncompressed) and Deflate compression methods
Create or extract files from Split Zip files (e.g. z01, z02,... Zip))
- 2020-06-21 08:20:02下载
- 积分:1
-
基于OMP,LS,MMSE三种算法的信道估计仿真图比较OMP_GOMP
说明: 基于OMP,LS,MMSE三种算法的信道估计仿真图比较,对学习信道估计的研究者有很大帮助(The chart compares the OMP, LS, MMSE three algorithms based channel estimation simulation learning channel estimation researchers)
- 2020-09-15 21:47:56下载
- 积分:1
-
peakfinder
This function quickly finds local peaks or valleys (local extrema) in a noisy vector using a user defined magnitude threshold to determine if each peak is significantly larger (or smaller) than the data around it. The problem with the strictly derivative based peak finding algorithms is that if the signal is noisy many spurious peaks are found.
- 2021-03-12 19:39:25下载
- 积分:1
-
cangkuguanli
利用C++实现的插入,删除,增加接点等功能(The use of C++ Realized insert, delete, increase the contact and other functions)
- 2008-12-29 21:36:59下载
- 积分:1
-
081SharpZipLib
C#写的ZIP压缩包,可以在线将文件压缩成为ZIP文件或数据流。(wrote ZIP compressed, online file compressed into ZIP files or data flow.)
- 2006-12-29 03:27:15下载
- 积分:1