13898399SVM

本代码为OFDM的原始MATLAB仿真代码，已通过验证为 好代码(The original MATLAB code for OFDM simulation code has been validated as a good source)

说明：  matlab程序设计基础ppt 函数文件程序设计的基本结构(matlab program design based on function ppt document the basic structure of program design)

说明：  数理统计中各种参数估计与假设检验源代码，文件中有例程(A variety of mathematical statistics, parameter estimation and hypothesis testing of the source code)

软硬阈值函数和自定义的基于非线性变换阈值函数曲线图(Hard and soft threshold function and custom thresholding function based on nonlinear transformation curve)

程序是OFDM系统整个发送接收过程，其中包含QPSK调制解调，快速傅里叶正逆变换，还有信道估计等过程。(The procedure is the OFDM transmitting and receiving process of the system, which includes QPSK modulation and demodulation, and inverse fast Fourier transform, and the channel estimation process.)

说明：  频域的模态参数识别方法之一，可以对振动信号进行分析处理，得出结构的固有频率，阻尼比，振型系数，方法很好，程序完整，(Frequency-domain modal parameter identification methods that can analyze the vibration signal processing, draw the structure of natural frequencies, damping ratio, mode shape coefficient, very good method, program integrity,)

利用拉普拉斯变换的思想，通过对数据进行差分，近似得到拉普拉斯变换后的结果，然后检查正负交换的位置，则此为极值点位置，利用此思想得到极值点的位置。(Using the ideas of Laplace transform of the data by the difference approximation get results Laplace transform, and then check the position of the positive and negative exchange, this is the extreme position, take advantage of this thinking of getting extreme points location.)

用matlab做的三电平SVPWM逆变器的仿真，能够实现svpwm的基本功能，但是还不完善。(Using matlab to do a three-level SVPWM inverter simulation, svpwm to achieve the basic functions, but not perfect.)

相关函数 两个数组相关 涉及两个正变换和一个反变换(Correlation function related to the two arrays are involved in both transformation and an anti-transformation)

直接序列扩频通信系统仿真程序源码，使用maatlab语言设计的程序源码。 可直接使用。 (Direct sequence spread spectrum communication system simulation, source code, program source code using maatlab language design. Can be used directly.)