f4.02

通信调制中的FSK调制，用4个不同的调制载波对发送信号进行调制，从而代表不同的信息(four carriers fsk)

CFD analysis of velocity in x-direction

快速计算菲涅尔衍射光场，将菲涅尔衍射公式转换为快速傅里叶变换FFT，可以直接嵌入程序中使用，对菲涅尔计算全息很有用！(Fast calculation of Fresnel diffraction field, Fresnel diffraction formula will convert the fast Fourier transform FFT, can be directly embedded program using the Fresnel CGH is useful! ! !)

matlab实现菲涅耳全息图,简单明了，很有用.自己整理的,可以直接运行。(matlab achieve the Fresnel hologram, simple and useful. collate their own, and can be directly run.)

说明：  fastica的一个例子，初入门的同学可以参考一下。(example for fastica)

说明：  带时间滞后项的最小二乘法，主要用于金融时间序列数据的拟合(least square method)

我国数字电视地面国标以及手机电视国标都采用了LDPC编码，本程序是LDPC的Matlab便解码实现，程序中附有说明，结构简洁，是了解LDPC原理和应用的最佳实例。(China Digital Television Terrestrial GB GB, as well as mobile TV using the LDPC codes, this procedure is LDPC decoding of Matlab will be realized, accompanied by a process of structural simplicity, is to understand the principle and application of LDPC best examples.)

this code for wavlet selection and finding parametres ,showing it incommand window ........by pandey

％ FSK-FM方案的可解调问题。 ％ 高斯噪声 SNR = 2OdB 并假设镜像信号非常小。仿真设置5％( FSK-FM program can demodulation problem. Gaussian noise SNR = 2OdB and assuming the image signal is very small. Simulation set up 5)

运用matlab编程实现自回归支持向量机算法(autogressive support vector machine)