two_example

matlab有限元工具箱，用matlab实现的有限元工具箱，有平面空间梁单元，杆单元，实体单元等。-achieved using Matlab Toolbox FEM, graphic space beam elements, rod elements, entities modules.( FEM Application M-file for fem.fig FIG = FEM launch fem GUI. FEM( callback_name , ...) invoke the named callback. ========================================================================= FEM analysis toolbox for solid mechanics. Project started: Aug 2004 Anton Zaicenco <a.zaicenco@codedevelopment.net> ========================================================================= ------------------------------------------------------------------------)

for read and analysis of GEO Data

在一个移动通信系统中，发射信号是一个未调制的音频x(t)=cos(2πft)，其中f=f0+fi。设标称载波为f0=1GHz，并设fi =512Hz。假定移动用户在一个繁忙的高速公路上距离基站l公里处的地方，从开始从每小时60公里的速度开始，其速度（在0.01秒的时间间隔内测量）以1/2的概率随机的增加或减少1/10公里每小时。试仿真移动用户在这2s的时间间隔内所接收到的信号(及其频谱)。接收信号可以表示为： y(t)=a(t)Cos[2π(fo+f1)(t-△t)] 式中 △(t)=d(t)/c 且 a(t)=k/d2(t) 在上面的表达式中d(t)是在t时刻基站与移动用户的距离，c是光速，△(t)是传播延迟，而a(t)是信号在t时刻的衰减，并假设在这2s内a(t)是一个常数。利用复低通等效模型来进行仿真。(In a mobile communication system, the transmitted signal is an unmodulated audio x (t) = cos (2πft), where f = f0+ fi. Let nominal carrier of f0 = 1GHz, and set fi = 512Hz. Assume that mobile users on a busy motorway station l kilometers place, starting the beginning of 60 kilometers per hour, the speed (measured in 0.01 second interval) to increase the probability of a random 1/2 or reducing 1/10 km/h. Simulation test signal which the mobile subscriber in the 2s time intervals of the received (and its spectrum). The received signal can be expressed as: y (t) = a (t) Cos [2π (fo+ f1) (t- △ t)] Where △ (t) = d (t)/c And a (t) = k/d2 (t) In the above expression, d (t) at time t is a base station and a mobile user s distance, c is the speed of light, △ (t) is the propagation delay, and a (t) is the attenuation of the signal at time t, and assuming that 2s within a (t) is a constant. Using complex low-pass equivalent model for emulation.)

SHAPE FROM SHADING FOR EIKONAL PROBLEMS

Simple program that encrypts and Decrypts text with options to generate/Open and Save key.

论文：An examination of U.S. institutional and individual investor sentiment effect on the Turkish stock market(This study examines the effect of rational and irrational components of U.S. institutional and individual investor sentiment on Istanbul Stock Market (ISE) return and volatility. The results showthat there is a significant spillover effect of U.S. investor sentiment on stock return and volatility of ISE. A breakdown of sentiment by the type of investor shows that the impact of institutional sentiment is greater than that of individual sentiment. A breakdown of sentiment by rationality shows that the effect of rational sentiment on ISE return is faster though not necessarily greater than that of irrational sentiment. The conclusion fromthese results is that the effect of U.S. investor sentiment is systemic and cannot be diversified away. U.S. investor sentiment, therefore, constitutes a priced risk factor and must be accounted for accordingly in international asset pricing models. The findings also provide some evidence of a negative relationship between U.S. investor senti)

In this simulink model , BPSK modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal is demodulated and given to the detector where it is matched filtered and down-sampled .The effects of symbol timing offset can be seen by varying the phase of down-sampling operation.The signal transmitted is recovered at the detector output.

为提高常规MUSIC算法的分辨率，仿真了求根MUSIC算法。注释详细，适合初学者(In order to improve the resolution of conventional MUSIC algorithm, simulated Root MUSIC algorithm. Detailed notes, suitable for beginners)

多变量频域设计 绘制逆奈奎斯特曲线的函数的改进(multivariate frequence)

小波滤波技术，实现信号和图像的滤波处理，相较中值滤波处理的效果更佳理想(Wavelet filtering technology can filter signals and images better than median filtering)