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In this simulink model , 16-QAM 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.

求卷积及两个序列的互相关函数，或一个序列的自相关函数；(for convolution and two sequences of cross-correlation function, or a series of auto-correlation function;)

This UMAT program is a very good material for beginners in learning how to form Jacobin Matrix, how to update stress, etc.

用Arnold方法对图像进行置乱，目的使图像随机分布均匀(Arnold method using the image scrambling, the purpose of uniform random distribution of the image)

On MATLAB in communication system application

MATLAB宝典光盘赠送的章节。还是很有帮助的(MATLAB Collection CD gift section. Very helpful)

无传感器控制同步电机simulink仿真模型，已经闭环控制，参数在m文件中。(Sensor-controlled synchronous motor simulink simulation model has closed-loop control, parameter m file.)

说明：  2017-IEEE-Mining Scraper Conveyor

设计一维纳滤波器。产生三组观测数据，并估计它们的AR模型参数，分析信号长度和模型阶次对实验结果的影响(Wiener filter design. Have three sets of observational data, and estimated AR model parameters of their analysis of the signal length and model order on the impact of experimental results)

matlab code a tester