MATLABKUHANSHUO

用双线性变换法设计IIR数字滤波器 （1）用双线性变换法设计一个巴特沃斯低通IIR 数字滤波器。设计指标参数为：在通 带内频率低于0.2π 时，最大衰减小于1dB；在阻带内[0.3π ,π ] 频率区间上，最小衰减大于15dB。 （2）以0.02π 为采样间隔，打印出数字滤波器在频率区间[0,π / 2] 上的幅频响应特性 曲线。 （3）用所设计的滤波器对实际心电图信号采样序列（在本实验后面给出）进行仿真滤 波处理，并分别打印出滤波前后的心电图信号波形图，观察总结滤波作用与效果。 (err)

改进后的电离层三维射线追踪法，运算速度更快，更加精准，用于大家交流(The improved three-dimensional ray tracing method ionosphere, computing faster, more accurate, for the exchange of)

对已有协作检测的算法变换参数进行性能仿真比较(Collaborative testing of existing algorithms for performance simulation and comparison of transformation parameters)

BPSK is a biplar shift keying

说明：  改进的Alamouti STBC，2*2 相关信道,运行通过。(improved Alamouti STBC，2*2 correlation channel,possible to run.)

Improved ant clustering algorithm

PPT内容对matlab的基础知识进行了详细的讲解，并用matlab对透镜的光学特性进行了matlab模拟(PPT content on matlab basics of detail, and the optical properties of the lens using matlab matlab simulation)

有源噪声控制(ANC)主要基于LMS算法,但在处理宽带噪声信号和低信噪比情况下,效果不好.影响控制效果的主要原因是输入信号的自相关分布.而小波变换具有消除信号自相关的作用.因此将小波变换引入有源噪声控制(ANC)是解决问题的一种办法(Active noise control (ANC) is mainly based on the LMS algorithm, but ineffective in dealing with the situation of the broadband noise signal and low signal-to-noise ratio, the main reason affecting the control effect of autocorrelation distribution of the input signal. Wavelet transform to eliminate signalautocorrelation role Thus the wavelet transform is a problem-solving approach to the introduction of the active noise control (ANC))

QAM调制的ＭＡＴＬＡＢ程序仿真，思路清晰，既可以学习如何用ＭＡＴＬＡＢ编程，又可以理解通信调制技术！(QAM MATLAB simulation procedures, clear thinking, can learn how to use MATLAB programming, but also to understand communication modulation technology!)

Again it is my program work