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Noise can be defined as unwanted signal that interferes with the communication or measurement of another signal. Noise conveys information regarding the source of the noise, e.g. the noise from a car engine conveys information regarding the state of the engine.

1.录制一段自己的语音信号,对录制的信号进行采样 画出采样后语音信号的时域波形和频谱图 给定滤波器的性能指标,采matlab设计数字滤波器,并画出滤波器的频率响应 然后用自己设计的滤波器对采集的信号进行滤波,画出滤波后信号的时域波形和频谱,并对滤波前后的信号进行对比,分析信号的变化 回放语音信号。2.(1. Recorded his voice for some signal, the signal is sampled on the record draw sampled speech signal time-domain waveform and frequency spectrum performance for a given filter, mining matlab digital filter design, and draw the filter frequency response then use their own filters designed to filter the collected signals, to draw the filtered time domain waveform and frequency spectrum, and comparing the signal before and after filtering, analysis of signal changes playback of audio signals. 2.)

计算双层单负材料的色散关系投影能带图 (the dispersive relation of the twwo single negative metamaterial layer )

赶火车过程仿真 一列火车从A站经过B站开往C站，某人每天赶往B站乘这趟火车。已知火车从A站到B站运行时间为均值30分钟、标准差为2分钟的正态随机变量.火车大约在下午1点离开A站。离开时刻的频率分布为 (Process simulation, a train to catch the train from A through B station station station bound for C, B Station tour someone rushed to the train every day. Known to the train station from station A to B as the average running time 30 minutes, standard deviation of 2 minutes of normal random variables. Trains leave about 1:00 pm A station. The frequency distribution for the leave time)

说明：  博弈论相关，一些matlab练习的例程，希望能有点参考价值。(Fuzzy Bi-cooperative games in multilinear extension form)

本软件是应用ｍａｔｌａｂ软件进行画图的程序，含有程序原代码，你们可以自己跟进的需求，进行适当的修改，非常方便。(the function used Matlab to builded, and the code are attached, you can modify it depended on your need.)

采用MinTV算法对图像进行处理，用MinTV恢复算法+牛顿迭代法实现压缩感知对图像的处理。(MinTV algorithm using image processing, with MinTV recovery algorithm+ Newton iteration method to achieve compression perception of the image processing.)

对加速度测试信号做预处理，去除趋势项后可以实现积分(Credits can be achieved after the the acceleration test signal preprocessing, removing the trend term)

matlab教程，详细的介绍了matlab的使用方法，操作步骤基流程(matlab tutorial matlab detailed introduction to use, step-based process operations)

通过介绍判断分析的相关内容，提供了相关的算法，很好，很全面(By introducing the judgments of the relevant content, providing the relevant algorithm, very good, very comprehensive)