image-Contour-detecting-

选拨赛数学建模题目-网络谣言的传播模型。文件中包括题目、参考文献和matlab代码。basic.m中是最简化的模型，extend1.m中更进一步，算法中引入老年人和年轻人的活跃程度和对谣言的易信度的不同，beacons.m中再进一步引入网络警察角色来演化谣言的传播。(American Mathmetical Modeling Competition. Title:Spread of Internet Rumours.The file inclueds the title document,the reference literature and the MATLAB code.)

S变换的matlab源码，并应用几个信号作为例子来说明怎么使用s变换以及s变换可以用来做些什么事情。s变换是时频分析领域中一个较新的内容，现在在信号处理，地震勘探，语音识别等领域都开始了对它的应用研究，是目前的一个热点。(S transform matlab source, and apply some signal as an example to illustrate how to use s and s transform transform can be used to do things. s transform time-frequency analysis are a relatively new area of content, now in the signal processing, seismic exploration, speech recognition and other areas of the beginning of its applied research, is a hotspot.)

说明：  calculation of co occurrence matrix

Ask、fsk、psk各做一个调制与解调的实验仿真 再做一个三个的结果（误码率）比较，通过图像对输出结果进行对比， 每个仿真的输出结果可随输入数据的改变而相应改变 课程设计需要运用MATLAB编程实现ASK,FSK,PSK，调制解调过程，并且输出其调制后的波形，画出频谱、功率谱密度图，并比较各种调制的误码率情况，讨论其调制效果 (Ask, FSK, PSK each simulation a modulation and demodulation 再做一个三个的结果（误码率）比较，通过图像对输出结果进行对比， Another three results (BER) by comparison, image are compared to the output results, 每个仿真的输出结果可随输入数据的改变而相应改变 The output of each simulation results with the input data and the corresponding change to change 课程设计需要运用MATLAB编程实现ASK,FSK,PSK，调制解调过程，并且输出其调制后的波形，画出频谱、功率谱密度图，并比较各种调制的误码率情况，讨论其调制效果 Curriculum design needs to realize ASK, using MATLAB FSK programming, PSK, modulation and demodulation process, and the output of the modulated waveform, draw the spectrum, power spectrum density diagram, bit error rate and to compare the different kinds of modulation, discusses the modulation effect )

附加包含蓝牙调频系统的simulink模型，包含信号传输，接收，谱分析，误码分析等。(The additional Bluetooth FM system simulink model that contains the signal transmission, reception, spectral analysis, error analysis.)

说明：  该程序可将指纹图片进行归一化、二值化、细化、提取特征点，可供大家参考学习。(A great Fingerpoint program which can solve some problem related.)

Complex wavelet structure similary

matlab编写的地震数据格式转换，由segy进行数据处理(matlab prepared seismic data format conversion, data processing carried out by segy)

线性AGC的程序。该程序仿真了线性AGC的工作过程，画出的图反映了线性AGC对幅度跳变敏感的特性(Linear AGC process. The program simulated the working process of the linear AGC, draw the figure reflects the magnitude of jump linear AGC on the characteristics of sensitive)

基于Hi-net短周期地震波形资料的汤加地区Lehmann间断面研究,基于Hi-net短周期地震波形资料的汤加地区Lehmann间断面研究(Sectional study among Tonga Lehmann Hi-net short-period seismic waveform data based on Lehmann between Tonga Hi-net short-period cross-sectional study of seismic waveform data)