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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 paragraphs to realize the encryption of sound files. First, the first reading of a voice signal, the signal was 1024 points FFT transform, check after the completion point, divided into four vectors, the four vectors form a matrix, then for each vector transpose, re-integration, which will achieve a return to close the process.)
- 2010-05-22 11:45:10下载
- 积分：1
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matlabtxjm
基于matlab的图形图象加密算法，对图形图象进行行列变换，达到对图象进行加密的功能。(Matlab-based graphical image encryption algorithm, to transform the ranks of graphics images to be encrypted on the image function.)
- 2007-12-03 11:38:06下载
- 积分：1
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xiaorgb
rgb颜色模板的肤色提取方法，对于人脸定位有着一定的帮助(rgb color color template extraction method for face detection with some help)
- 2010-12-21 17:55:53下载
- 积分：1
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EMD
程序运用matlab语言，读取了电流数据，并对电流数据进行了经验模态分解，观察分解各层的特征(Program using matlab language, read the current data, and current data were empirical mode decomposition, the decomposition observed characteristics of the layers)
- 2013-12-25 14:16:27下载
- 积分：1
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seg
segmentation algorithm
- 2016-02-29 02:59:12下载
- 积分：1
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computing fluid of dynamics
二维流动，计算直匀流情况下，存在一个形心在流场正中的正方形时，流场的变化以及绘制出流线(Two dimensional flow. In the case of direct uniform flow, a centroid exists in the square of the middle of the flow field. The flow field changes and the streamlines are plotted)
- 2017-09-22 22:36:14下载
- 积分：1
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ofdmsystemmatlab
说明： 基于能量检测和周期循环检测的认知无线电频谱检测matlab代码
用周期循环检测算法检测：
首先运行a.m程序，通过此程序运算得出循环频率a值；
再运行zhouqi.m程序，对a值进行确定，通过周期循环算法对信号进行检测；
用能量检测算法检测：
运行nengliang.m检测程序，使用能量检测对信号进行检测。
检测完毕，对检测性能进行分析。
(Cognitive radio based on energy detection spectrum detection matlab code)
- 2011-04-14 11:16:47下载
- 积分：1
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ChannelCap
[CC,Paa]=ChannelCap(P,k) 为信道容量函数
变量说明：
P：输入的正向转移概率矩阵，k：迭代计算精度
CC：最佳信道容量，Paa：最佳输入概率矩阵
Pa：初始输入概率矩阵，Pba：正向转移概率矩阵
Pb：输出概率矩阵，Pab：反向转移概率矩阵
C：初始信道容量， r：输入符号数，s：输出符号数
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- 2012-09-28 16:07:01下载
- 积分：1
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SignalDetection
说明： The LSTM-based neural network is trained for a single subcarrier, where the symbol error rate (SER) is calculated and compared with the least square (LS) and minimum mean square error (MMSE) estimations.
- 2020-01-02 12:22:05下载
- 积分：1
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ofdm_simulation
The COFDM simulation
- 2010-05-30 03:01:02下载
- 积分：1
