chap8

说明：  附件中包括： 1.叉积自动频率控制（CPAFC）matlab源代码cpafc.m 2.相应的am调制的测试信号am.dat ，载波500Hz，采样8000，调制信号50Hz,32 位float(Accessories include: 1. Cross product auto frequency control (CPAFC) matlab source code cpafc.m 2 . corresponding test signal modulation am am.dat, carrier 500Hz, sampling 8000, modulated signal 50Hz, 32 位 float)

In this code, the BER performance of a system which uses sparse channel estimation is compared with a system which uses LSE channel estimation. It is shown that using sparse technique improves the performance of the system

multidevice antenna for portable device

说明：  用MATLAB开发的程序代码，模拟电磁波在二维空间的传播特征。(With the MATLAB code developed to simulate the spread of electromagnetic waves in two-dimensional feature space.)

巴特沃斯低通，巴特沃斯高通滤波器。matlab实现，用于图像平滑处理，去噪。(butworth，filter。)

Denoising of Signals using customized thresholding

说明：  1.用差分法求解电容器x轴上的电位分布和原点O点的电位值。（不考虑电容的电磁效应） 2.通过MATLAB仿真实现八木天线的工作原理，获得八木天线的输入阻抗、天线增益、E面方向图和H面方向图。(1.The difference method is used to solve the potential distribution on the x-axis of the capacitor and the potential value at the point O. (without considering the electromagnetic effect of capacitors) 2.The working principle of Yagi antenna is simulated by MATLAB. The input impedance, antenna gain, E-plane pattern and H-plane pattern of Yagi antenna are obtained.)

北京邮电大学的通信MATLAB仿真跟大家分享下(Beijing University of Posts and Communications MATLAB simulation share with you the next)

分数傅立叶变换的源代码，可哟骂你过于图像处理，目标识别，信号检测等。尤其善于处理线性调频信号。(scores Fourier transform source code, you can yo scolded too image processing, target recognition, signal detection. Particularly good at handling linear FM signal.)

The aim of this assignment is to use the Finite Difference Method to numerically determine the transverse electromagnetic (TEM) transmission line (TL) parameters of a line with a coupled ribbon shaped cross-section. To achieve this, a computer program was developed to perform the finite difference calculation the computer program used in this report was Matlab.