chap1_1

将一幅图像用其他噪声的图像组合起来，全部代码和实例(make one pic combined with other kinds of pic and give some examples)

说明：  该程序代码是用于构造非平稳的信号的代码，其统计特性是随时间而变的。(This program code is used to construct non-stationary signals)

matlab 同步捕获代码，有重要参考价值(matlab is good code for refence)

说明：  根据随机给出的二进制信号进行统2ASK调制,画出各个阶段的波形.(According to random binary signals given 2ASK modulation system, draw the various stages of waveform.)

This code computes fft and ifft

卡尔曼滤波仿真程序...学习kalman滤波很好的参考(Kalman filter simulation program ... Kalman filter learning good reference)

该程序用Matlab实现hilbert-huang变换，含EMD，HHT，边际谱等，有一些实例，较完善。(The program uses Matlab to achieve hilbert-huang transform, including EMD, HHT, the marginal spectra, there are some instances better.)

This Algorithm comutes demagnetizig tensor from Newell Paper[1] between two rectangular shape elements.Main function is and there is equivallent function written in c-language, you can use it to compile mex file.This script can be used in field of micromagnetics and finite difference magnetic simulation software. 1. A.J. Newell, W. Williams, D.J. Dunlop, J. Geophys. Res. 98, 9551 (1993).

完成802.11a的建模，可供通信专业研究人员参考(complete the model of 802.11a)

基于matlab利用一维FDTD方法对电磁波传播及反射透射进行仿真(Based on matlab using one-dimensional FDTD method and the reflection and transmission of electromagnetic wave propagation simulation)