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Signal & Systems WITH MATLAB e-book good for signal & system engineering course

画函数图象的matlab程序,很实用，希望和大家分享。(Matlab image draw function, procedure, very practical, would like to share.)

食堂排队建模与分析,以作者所在的学校的食堂为例，建立数学模型，通过作者的调查和计算，进而优化食堂排队方案，解决食堂拥挤和成本的问题。(Cafeteria line modeling and analysis of where the school canteen, for example, the establishment of the mathematical model, by the author of the survey and calculation, thereby optimizing the cafeteria line program to solve the problem of the crowded cafeteria and cost.)

kummer 复函数实现合流超几何函数的matlab程序(kummer complex)

蚁群算法是目前应用最广的智能算法之一，该程序应用蚁群算法求解最优路径(Ant colony algorithm is one of the most widely used intelligent algorithm, the program ant colony algorithm for optimal path)

OFDM(Orthogonal Frequency Division Multiplexing)即正交频分复用技术，实际上OFDM是MCM Multi-CarrierModulation，多载波调制的一种。其主要思想是：将信道分成若干正交子信道，将高速数据信号转换成并行的低速子数据流，调制到在每个子信道上进行传输。正交信号可以通过在接收端采用相关技术来分开，这样可以减少子信道之间的相互干扰 ICI 。每个子信道上的信号带宽小于信道的相关带宽，因此每个子信道上的可以看成平坦性衰落，从而可以消除符号间干扰。而且由于每个子信道的带宽仅仅是原信道带宽的一小部分，信道均衡变得相对容易。本程序实现OFDM与QPSK技术的比较(This program realization technology and the OFDM QPSK technology)

学习并找到降噪方法，对语音信号背景噪声做处理，使得声音更清晰。(The background noise is the most common factor degrading the quality and intelligibility of speech in recordings. Spectral subtraction can lower the noise level without affecting the speech signal quality. In this paper, we have studied and implemented to reduce the background noise of the voice signal, and to make improvements to reduce the background noise of the experiment. Not only with the spectral subtraction of the noisy signal of the transformation, we improve the traditional spectral subtraction based on the introduction of the parameters, by adjusting the parameters(α、β、γ) to achieve better enhancement.)

通过反馈网络的自适应学习算法自我修正阈值和连接权值等参数(Through the feedback network of the adaptive learning algorithm for self-correction threshold and connection weights and other parameters)

MATLAB e books for beginner

Lattice Boltzmann Method for Poiseuille Channel 2D