nihe-(2)

this program is utility program for discrimination criteria in channel selection of BCI system based on F_Score criterion.

face reconigtion system use neural network

MATLAB实现BCH（15,5）编译码，以及BCH编码器与解码器的MATLAB实现及性能分析(MATLAB implementation of BCH (15,5) encoding and decoding)

The Interleaved Frequency Division Multiple Ac- cess (IFDMA) scheme is based on compression, repetition and subsequent user dependent frequency shift of a modulated signal. Multiple access is enabled by the assignment of overlapping but mutually orthogonal subcarriers to each user. In this paper it is shown that IFDMA can be regarded as unitary precoded OFDMA with interleaved subcarriers. On the other hand, IFDMA is shown to be a CDMA variant with frequency domain orthogonal signature sequences and chip interleaving. Thus, it combines the advantages of single and multi carrier transmission such as low peak to average power ratio, orthogonality of the signals of different users even for transmission over a time dispersive channel and low complexity. Simulation results show the good performance of coded IFDMA transmission over a mobile radio channel for different data rates.

ls ber performance OF OFDM CHANNEL WHICH shows why ls in ofdm is better than other.

基于DCT变化域的鲁棒水印及脆弱水印的嵌入与提取(Embedding and Extracting Robust and Fragile Watermarks Based on DCT Change Domain)

数字语音是信号的一种，我们处理数字语音信号，也就是对一种信号的处理，那信号是什么呢？ 信号是传递信息的函数。离散时间信号——序列——可以用图形来表示。 按信号特点的不同，信号可表示成一个或几个独立变量的函数。例如，图像信号就是空间位置（二元变量）的亮度函数。一维变量可以是时间，也可以是其他参量，习惯上将其看成时间。 (Digital Voice is a signal that we deal with digital voice signal, that is, the processing of a signal, that signal what is it? Signal is a function of transmitting information. Discrete-time signal- sequence- can be used to indicate the graphics. According to the different signal characteristics, signal or can be expressed as a function of several independent variables. For example, the image signal is the spatial location (binary variables) of the brightness function. Variables can be one-dimensional time and other parameters can be, habits will be time to treat it as a.)

matlab中最大似然估计的程序说明，里面包含程序，拷到matlab中可直接使用(matlab maximum likelihood estimation program description, which contains the program, copying matlab can be used directly in)

自己编的matlab程序能够用于3D情况下偶极子天线辐射方向图的FDTD仿真！与大家共享！(it can be used to simulated the dipole antenna.by using the matlab language,the radiation pattern is simulated by using FDTD algrthom!)

MATLAB及在电子信息中的应用：q707有限长序列z变换，z逆变换。708是逆变换(MATLAB and the application of electronic information: q707 finite length sequence of z transform, z inverse transformation. 708 is the inverse transform)