New-WinRAR-archive

基于LS和MMSE算法实现信道估计，采用块序列(Based on LS and MMSE algorithm, realized channel estimation )

说明：  BD算法，实现了BD预编码算法，系统吞吐量的计算，采用注水法(BD algorithm to achieve the BD pre-encoding algorithm, the system throughput computing, the use of water injection)

CDMA下行解调的MatLab程序，完成下行信号的解扩。(CDMA downlink demodulation process MatLab)

scalablity and reliability in distributed IMS systems.

基于MATLAB的LDPC码编译设计，是ＬＤＰＣ的基础程序，适合初学者(MATLAB-based LDPC code compiler design is based LDPC program, suitable for beginners)

Edge Detection function in matlab

The program computes and plots the equation of time, the declination, and an analemma curve for various orbital parameters. The analemma is the curve traced by the position of the sun, measured at clock noon, over a year.

求序列向量xn的傅里叶变换和离散傅里叶变换并画出它们的幅频特性和相频特性曲线，验证离散傅里叶变换是傅里叶变换的等间隔采样，验证IDFT和DFT的唯一性(Find the Fourier transform of the sequence xn vector and the discrete Fourier transform and draw their amplitude-frequency characteristic and phase-frequency characteristic curve, verify the discrete Fourier transform is the Fourier transform of equally spaced sampling, verification of IDFT and DFT Uniqueness)

计算循环平稳信号的4累积量的快速算法，希望对大家有所帮助(Cyclostationary signals calculated cumulant 4 fast algorithm, and they hope to help everyone)

The method works as follows. 1. For a data set with dimensionality, d, compute the variance of data in each dimension (column). 2. Find the column with maximum variance call it cvmax and sort it in any order. 3. Divide the data points of cvmax into K subsets, where K is the desired number of clusters. 4. Find the median of each subset. 5. Use the corresponding data points (vectors) for each median to initialize the cluster centers.