ofdm

对数字电路，通信原理，DSP等一些现象的仿真：比如整流器，滤波器，仿真二/四译码器，四选一数字选择器，信号发生器，2FSK信号的调制、滤波、频谱分析等，对DSP中各种滤波的仿真以及通原中的调制解调的仿真等(Digital circuits, communication theory, DSP and some other phenomena simulation: for example, rectifiers, filters, simulation II/IV decoder, four elected a digital selector, signal generator, 2FSK signal modulation, filtering, spectral analysis, DSP filtering on the various links of the original simulation and the simulation of the modulation and demodulation, etc.)

solution OFDM for MATLAB ver.3

Performance of uipolar modulation Unipolar encoding, a line code

利用c++编程，该程序实现了不使用标准块输入访问simulink信号(Using c++ programming, the program achieved without the use of standard access simulink block input signal )

包括广义互相关函数GCC时延估计，包含光伏电池模块、MPPT模块、BOOST模块、逆变模块，进行波形数据分析,使用拉亚普诺夫指数的公式，应用小区域方差对比，程序简单。( Including the generalized cross-correlation function GCC time delay estimation, PV modules contain, MPPT module, BOOST module, inverter module, Waveform data analysis, Raya Punuo Fu index using the formula, Application of small area variance comparison, simple procedures.)

this is image frequency transform,vevr good(This is the image frequency transform, vevr good)

说明：  数字信号处理中的一些matlab源程序。(digital signal processing some of the Matlab source.)

提出了一种求解电磁场有限元 边界元混合法所生成的线性方程组的有效方法 ———内观 法结合多波前法.由于该线性方程组的系数是一个部分稀疏部分满填充的矩阵,为了加速求解,应用内观法将系数矩阵分为 2块,一块是有限元法形成的稀疏矩阵,另一块是边界元法生成的满阵,然后用多波前法求解稀疏矩阵方程,用高斯 约当消去法解满阵方程. 采用该方法,计算了二维多层介质柱体的雷达散射截面.计算结果表明,该方法的计算效率远远高于传统的高斯法.(Proposed for solving mixed finite element boundary element linear equations generated by an effective method of Vipassana--- a combination of multi wave front method. Since the coefficients of linear equations is a part of the sparsely populated part of the full matrix, in order to speed up the solution, application of Vipassana coefficient matrix is ​ ​ divided into two, one is the finite element method for the formation of the sparse matrix, the other is the boundary element method generates the full array, and then use the multifrontal method for solving sparse matrix equation Gauss Jordan elimination method with full matrix equation solution. use this method to calculate the two-dimensional multi-layer dielectric cylinder of the radar cross section. The results show the computational efficiency of this method is much higher than the traditional Gaussian law.)

说明：  MATLAB编写的求单位脉冲响应曲线的性能参数指标程序(MATLAB units for the preparation of the impulse response curve of performance parameters indicators procedures)

一个仿真的论文，关于svpwm的异步电动机调速(A simulation of the papers, on the SVPWM induction motor speed control)