搜索资源列表
DSB_datahide
- 是我设计的在DSB中隐藏语音的例子. 用ELANIX公司的SYSTEMVIEW打开运行. 其掩护信号和隐藏信号输入输出端均需设置语音源文件,比如自己录制的声音.-I designed the DSB concealed voice example. ELANIX company with the SYSTEMVI EW open operation. their cover and concealment signal input and output signals required
2121321
- 语音信号加密,通过语音信号频率的变换实现的语音加密解密算法-encrypted voice signal through the voice signal frequency transform voice encryption and decryption algorithm
HUtil
- 文件加密解密程序。内含公开暗号(RAS)加解密工具,简单的公开暗号生成工具。-document encryption and decryption procedures. Intron open secret signal (RAS) encryption and decryption tool, a simple open secret signal generation tool.
Julia
- 用MFC编写的基于Julia集加密解密的算法,本程序能成功的绘制出2次,m次以及广义的Julia集,并且是在复数空间中,同时能实现无限制的放大,还可以选取任意大小空间截屏保存。接着利用Julia集对图像进行加密解密,并计算出他们的信噪比。全部功能都已实现,是本人的毕业设计。-Written with the MFC-based encryption and decryption algorithm for Julia sets, the program can successfully draw
matlab
- 基于回声隐藏的信息隐藏算法,是一种音频信号的水印技术,包括隐藏信息的嵌入和提取,以及对于噪声,MP3压缩,滤波,重采样和延迟攻击的模拟。-Based on echo hiding information hiding algorithm, is an audio signal watermarking techniques, including embedding and extracting hidden information, as well as for noise, MP3 compr
CRC
- 通过对于模2除法的研究 可以得到如下方法: 1. 把信息码后面加上p-1位的0,这个试验中p是6位,即在输入的信息码后面加上“00000”。把这个17位的被除数放入input中。 2. 在得到被除数input之后,设计一个在被除数上移动的数据滑块变量d,把input中的最高位开始逐次复制给变量d。 3. 如果d的最高位为1,由变量d和变量p做异或运算;如果d的最高位为0则不运算或者做多余的异或‘0’的运算。 4. 把滑块变量d往后滑动一位。 5. 循环步骤(3,4)
NewalgorithmrequiringnopreprocessingforwidebandDOA
- 这是一篇讲述宽带信号DOA估计时一种不需要预估角度的聚焦矩阵的估计算法-This is a broadband signal on the DOA estimates do not need to forecast a focal point of the estimation algorithm matrix
ersal
- biomedical signal modeling
code
- 此算法用于实现一种基于查找表的混沌加密,将随机产生的一个数组加密后输出,同时也可以将解密后的数据与原始数据进行对照,本算法已经在5509芯片上进行实时运行过,用于对16bit语音信号的高16位加密,能满足实时性。-The algorithm used to achieve a look-up table based chaotic encryption, will be an array of randomly generated encrypted output, but also can d
conv_func
- This a good program to start with signal processing in matlab.This gives you basic idea about covolution algorithm.
ImageEncryptionBasedonChaotic
- 2008 Congress on Image and Signal Processing 2008 Congress on Image and Signal Processing-Image Encryption Based on Chaotic Modulation of Wavelet Coefficients
Bin_Encrypt
- 基于DES加密算法的二进制加密解密程序,内含主程序与加密函数、解密函数,有详细注释,并画出了二进制信号波形。-DES encryption algorithm based on binary encryption and decryption process, containing the main program and the encryption function, decryption function, detailed notes, and draw a binary signal
exp2
- 信号处理实验, 信号处理实验, 信号处理实验, -signal process experiment。signal process experiment。signal process experiment。signal process experiment。
watermarking
- 对音频信号分帧加窗,对每帧进行三阶小波变换,取其逼近系数平均值(一般为零).在此嵌入二值图像 并有对潜入水印信号进行盲检,恢复其嵌入水印-Sub-frame of the audio signal increases the Hamming window for each frame impletment third-order wavelet transform, whichever is close to the average coefficient (usually zero). a
an_intellegent_audio_water_marking_based_on_dwt-s
- All three, Discrete Wavelet Transform (DWT) - Singular Value Decomposition (SVD) and Adaptive Tabu Search (ATS) have been used as mathematical tools for embedding data into an audio signal. In this paper, we present a new robust audio waterma
soundsignal
- 将声音文件在时间轴上分割成几段,分别将段的秩序及某些段内的秩序颠倒,从而实现了对声音文件的加密。首先,先读取一个声音信号,对信号做1024点FFT变换,取完点之后,分成四个向量,四个向量组成一个矩阵,再对每一个向量进行转置,再重新整合,从而就实现了回密的过程。-Sound files on the timeline will be divided into paragraphs, each paragraph of the order and reversed the order of some
dessoundsignal
- 运用DES算法对音频信号进行加密处理,主要采用置换和移位运算来实现加解密.-DES algorithm used to encrypt the audio signal processing, mainly replacement and shift operations to achieve encryption.
lsbsoundsignal
- 最不 重 要 位(LSB)方法DO是将秘密数据(水印数据)嵌入到载体数据中最简单的一种方法,它是在时域里隐藏数据。任何的秘密数据都可以看作是一串二进制位流,而音频文件的每一个采样数据也是以二进制数来表示。这样,可以将部分采样值的最不重要位用代表秘密数据的二进制位替换掉,以达到在音频信号中嵌入秘密数据的目的。-The most significant bits (LSB) method of DO is the secret data (watermark data) embedded into
weixing
- 为了保证数字信号与所传信息的安全,防止无权用户干扰和窃密,一般应采取加密措施。数字信号比起模拟信号来易于加密,且效果也好,这是数字通信突’ 出的优点之一。国内的网间隔离安全设备(如防火墙等)产品较多,但服务器的安全和与之通信的客户的安全更为重要,服务器和客户端的软件应具有信息加解密、身份认证、访问控制、信息完整性和抗否认性验证等内容-To ensure the digital signal and the transmission of information security, right t
Lorenz_COOK
- Used to encrypt message signal using lorenz chaotic systems