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以上代码是求解椭圆微分算子的特征值问题的Matlab源代码，采用有限元法的思想来编写的，程序计算结果和理论是相符的。(The above code is to solve the elliptic differential operator eigenvalue problem of the Matlab source code, using the finite element method to write the ideas, procedures, results and theoretical calculation is consistent.)

计算机网络数据链路选择性重传实验。 　　设计一个滑动窗口协议，在仿真环境下编程实现有噪音信道环境下两站点之间无差错双工通信。信道模型为8000bps 全双工卫星信道，信道传播时延270毫秒，信道误码率为，信道提供字节流传输服务，网络层分组长度固定为256字节。(Computer network data link selective retransmission experiment. Design of a sliding window protocol in simulation programming environment there is no error duplex communication channel between the noisy environment the two sites. Channel model is 8000bps full-duplex satellite channel, the channel propagation delay 270 ms, channel bit error rate, channel provides a byte stream transmission services, network layer packet length is fixed at 256 bytes.)

Ebook for optical communication.

能够模拟光纤光栅，对于我们的实验研究有很大的帮助，是我们能够了解它大概的趋势买并且有助于实验的制作(Able to simulate fiber grating, for our experimental study of great help, we are able to understand it' s probably a tendency to buy and help make the experiment)

matlab中基于4f系统的图像的加密和解密源程序(matlab image encryption and decryption source 4f system based on the)

matlab7.0中工具箱em中的部分源程序(matlab7.0脰脨 鹿 陇 戮 脽脧盲em脰脨渭脛 虏 驴 脰脭 )

基于Informax判据的ICA算法，属于独立分量分析的一种。(Informax the ICA-based criterion algorithm, belonging to an independent component analysis. )

径向基（RBF）神经网络进行剩余寿命预测，训练输入为30*735的矩阵，输出为1*735(Radial Basis Function (RBF) neural network to predict the remaining life, the training input matrix of 30* 735, 735* 1 output)

1) 已知x=[1:15], y=[12 34 56 78 99 123 165 198 243 277 353 345 303 288 275], 用多项式进行拟合，给出拟合多项式，(所选拟合多项式阶数不同，拟合结果不同，请你选择适当的阶数进行拟合)，并绘出原始数据点、拟合曲线和95％置信区间（confidence bounds）的图形 . 2) 根据下面数学模型建立仿真模型，并在一个示波器中把它们的波形仿真出来。 (1) are known to x = [1:15], y = [12 34 56 78 99 123 165 198 243 277 353 345 303 288 275], with polynomial fitting, given the polynomial fitting, (the election order polynomial fitting different fitting results to differ, please select the appropriate order of fit), and draw original data points, fitting curve and 95 confidence interval (confidence bounds) graphics .2 ) In accordance with the following mathematical model for the establishment of simulation model, and in an oscilloscope waveform in their simulation out.)

二进制LDPC码的一种构造方法mackey构造，是学习LDPC码的基础(Binary LDPC code construction method mackey construction, is to learn the basis of LDPC codes)