Chapter-4

利用matlab源程序编写了可以绘制不同曲线的各种界面！(Prepared using matlab source code can draw a variety of different curves of the interface!)

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用于解反问题的代数重建法，对于Ax=b，输入矩阵A，列向量b，以及迭代步数k，可求的列向量x(Algebraic solution of the inverse problem for the reconstruction of France, for Ax = b, the input matrix A, the column vector b, as well as the number of iterations k, rectifiable column vector x)

Solving beam problem

正交频分复用（OFDM）的调制与解调以及OFDM的误码率。(Orthogonal Frequency Division Multiplexing (OFDM) modulation and OFDM demodulation and bit error rate.)

巴特沃夫高通滤波器通过高通滤波可用于检测奇异点。(Butterworth high-pass filter high-pass filter can be used to detect singular points.)

说明：  数学处理工具，凸优化理论在通信领域非常重要。(It is Mathematical processing tools, convex optimization theory is very importantin communications.)

1了解离散余弦正变换和逆变换的原理； 2理解离散余弦变换系数的特点； 3了解离散余弦变换在图像数据压缩中的应用； 4通过本实验掌握利用MATLAB编程实现数字图像的余弦变换； (1 for the discrete cosine transform and inverse transform principle understand the characteristics of the discrete cosine transform coefficients 3 for discrete cosine transform image data compression 4 master using MATLAB programming for digital image cosine transform through this experiment )

arc engine初级代码开发，对初学者很有帮助。希望能帮助广大初学者。代码很短，但是很经典。下载后可以直接用。(arc engine primary code development, helpful for beginners. Hoping to help the beginners. Code is very short, but very classic. After downloading can be used directly.)

车辆车速控制系统的simulink程序，本人制作，仅供参考。(Car speed control system simulink program, made reference only.)