ofdm

严格按照BP网络计算公式来设计的一个matlab程序,对BP网络进行了优化设计 优化1：设计了yyy，即在o(k)计算公式时，当网络进入平坦区时(<0.0001)学习率加大，出来后学习率又还原 优化2：v(i,j)=v(i,j)+deltv(i,j)+a*dv(i,j) (BP network in strict accordance with the formula to design a matlab program, the optimized BP network design optimization 1: Design of the yyy, that is, o (k) formula, when the network into the flat areas (< 0.0001) increase learning rate large, after the optimization of learning rate reduction 2: v (i, j) = v (i, j)+ deltv (i, j)+ a* dv (i, j) )

用龙格库塔法求得微分方程的数值解；用龙格库塔法求得微分方程的数值解(Obtained by using Runge-Kutta numerical solution of differential equations obtained by using Runge-Kutta numerical solution of differential equations)

合成孔径雷达SAR成像很全面的matlab程序，非常不错(SAR synthetic aperture radar imaging very comprehensive matlab program, very good)

MATLAB，即“矩阵实验室”，它是以矩阵为基本运算单元。从最基本的运算单元出发，介绍MATLAB的命令及其用法。(MATLAB, "Matrix lab," It was based on the matrix of the basic computing unit. Operational from the most basic unit is introduced, and MATLAB orders its use.)

MATLAB的图形界面GUI设计实现课程设计中的wrwFfR编码算法，并仿真WwMgApe参数在不同条件下的误码率性能曲线，与现有算法对比，性能良好，界面友好。 (MATLAB graphical interface GUI design and implementation of curriculum design wrwFfR coding algorithm and simulation WwMgApe parameters BER performance curve under different conditions, and existing algorithms contrast, good performance, friendly interface. )

说明：  基于matlab的FIR低通滤波及其实现过程(Based on the FIR low-pass filter matlab and its realization)

SMI方向图和性能(波束形成算法，自己修改） 优点： 收敛速度快 缺点：1 当阵元输出含有较强的期望信时，或者期望信号与干扰信号相关时，性能急剧下降.2 由于权向量含有方向矢量，因此对阵列的幅相差非常敏感；3 ,期望信号的功率不能过大，比干扰信号相差几十dB，也就是说，在小期望信号、大干扰信号情况下，也可进行SMI处理。 (SMI pattern and performance (beamforming algorithm, make changes to) Advantages: fast convergence Disadvantages: 1 output when the array elements with strong expectations of the letter, or related to the desired signal and interference signals, the performance sharply .2 direction vector containing the weight vector, so the array is very sensitive to the amplitude difference 3, the desired signal The power can not be too large, than the difference between the scores of interference signal dB, that is, in the small desired signal, large signal interference case, SMI can also be handled. )

very useful for inverter design in power electronics

基于MATLAB的语音识别MFCC特征提取算法(MATLAB-based speech recognition MFCC feature extraction algorithm)

本算法在Matlab2008b 环境下实现了立体视觉中摄像机的基础矩阵计算。包括main, sevenPoint、eightpoint 和eightpoint_norm三个函数。 main.m 是程序的入口，包括生成和读入实验数据，分别调用sevenPoint、eightpoint 和eightpoint_norm 三个函数求基础矩阵，最后绘制出最后的结果。sevenPoint.m 是用7 点法求解基础矩阵。eightpoint.m 是用8 点法求解基础矩阵，eightpoint_norm.m 是数据规格化后的8 点法求解基础矩阵。(The algorithm is implemented in Matlab2008b environment based stereo vision camera matrix calculations. Including the main, sevenPoint, eightpoint and eightpoint_norm three functions. main.m is the entry, including the generation and reading test data were calling sevenPoint, eightpoint and eightpoint_norm three fundamental matrix function evaluation, and finally draw the final result. sevenPoint.m 7 method is based on matrix. eightpoint.m 8-point method is based on matrix, eightpoint_norm.m the data after the 8-bit normalized fundamental matrix method. )