fundamentalsofsignalsandsystems

create logo ^_^ (Matlab)

matlab在几何分形图中的应用，对初学分形课的同学有很大帮助(matlab in the geometry of fractal images, fractal lessons for beginners of great help to students)

各种关于利用matlab进行编程解决差分问题的源代码(A variety of source code using matlab programming to solve the differential problem)

利用MATLAB 仿真工具设计出一个QPSK仿真程序，以衡量QPSK在理想信道、高斯白噪声信道和先通过瑞利衰落信道再通过高斯信道三种方式的调制解调得到的功率谱密度、噪声曲线、星座图及误码性能,并对仿真结果进行了分析。(QPSK simulation design and Realization Based on MATLAB)

用矩形窗设计线性相位FIR低通滤波器,给了源代码，已经调试过了。其中要用到一个函数myfreqz要自己编，在这也附上其代码。希望对大家有用。(Rectangular window with the design of linear phase FIR low-pass filter, to the source code, have been debug. To use a function which myfreqz to own, in that its code is also attached. Hope useful for everyone.)

This program calculates the scattering cross section of a PEC sphere that is surrounded by a dielectric shell. Diameters of the spheres and relative permitivities of the materials can be chosen by the user. The program uses matlab intern spherical bessel functions for the costly computations.

设计一超前校正环节，使得超调量为20 ，调节时间为1s。系统单位斜坡稳态响应误差为10 。并作出校正前后后的系统单位阶跃响应时域曲线加以比较。(Design a lead correction link, so the overshoot is 20 , adjust the time of 1s. Steady-state response of the system unit error of the slope is 10 . Made before and after correction and after the system unit step response curves are compared in time domain.)

PCA-SIFT的matlab源码，可以对图像的SIFT特征进行PCA主成成分提取，达到降维的目的(PCA-SIFT matlab source image SIFT features the PCA main into ingredients extracted achieve dimensionality reduction purposes)

说明：  采用谱分析的方法，通过拟合研究信号的长程相关特性..(long-range correlation using matlab...)

Mimo with Rayleigh channel and Zero Forcing