ofdm_4qam

principal_chaleur a routine for implementing the EF P1 Lagrange for the heat equation in the following stationary condition with Nonhomogeneous Dirichlet

稀疏主成分算法函数，内有详细的算法使用说明(SPCA function)

对影像例如SAR，RS等图像进行校正，具有好的效果(calibrate a series of images such as remote sensing image, and etc. )

说明：  LTE系统中QPSK软信息解调,Turbo编码matlab仿真程序，(soft QPSK demodulation in LTE )

该算法时LDPC码优化的好帮手。通过差分进化（DE）实现LDPC码度分布优化。给定码率，自动搜索最佳度分布。算法运算量较小，可以得到次优解。(The algorithm of LDPC code optimization is a good helper. Through differential evolution ( DE ) to realize LDPC code degree distribution optimization. Given rate, automatic search of optimal degree distribution. Algorithm can get smaller, suboptimal solution. )

计算流体——一维激波管流动的迎风差分格式-matlab 教学用（stager warming）(stager warming)

小波包分析提取振动信号中的特征频率，详细画出了时域和频域的相关图，利用自然梯度算法。( Wavelet packet analysis to extract vibration signal characteristic frequency, Correlation diagram shown in detail the time domain and frequency domain, Use of natural gradient algorithm.)

数字信号处理实践方法，从一到三囊括了数字信号处理的模数变换、DFT变换、Z变换、滤波器设计等(Digital signal processing practices, from 1-3 to include digital signal processing of analog-to-digital transformation, DFT transform, Z transform, filter design, etc.)

用VHDL语言实现了DES加密算法，其中包含了测试程序，能够进行仿真。(Using VHDL language implementation of the DES encryption algorithm, which contains the test procedures can be simulated.)

用matlab实现了对于已知序列求其离散傅里叶变换，并给出了三个实际例子进行解释。(Achieved with matlab known sequence requirements for its discrete Fourier transform, and gives practical examples to explain the three.)