ofdm_fft1st

This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious. (This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious. )

切平面法（matlab）程序 切平面法（matlab）程序(PF algorithm in matlab)

以实际所测随机中子脉冲数据的自相关函数为研究对象，借助仿真实验，开展Elman神经网络对不同浓度核材料进行识别的研究。在实测数据的基础上，通过叠加随机噪声，模拟产生了不同浓度核材料的相关函数样本用于神经网络的训练与测试，实验结果表明，(Calculating the stochastic neutron pulse autocorrelation function with the actually measured data as the research object, we carry out different simulate experiments in concentration identification of varied nuclear materials using Elman neural network. Superimposing random noise on the measured data, we get correlation function samples simulating the different concentrations of nuclear material for training and testing the neural network.)

刘金琨老师书上很好的滑模程序,很详细很有代表性。(Liu Jinkun teacher good book sliding mode program.)

MATLAB经典案例系列视频,数据传递和多窗口编程(MATLAB classic case series video, data transfer and multi window programming)

利用matlab编写的求解融合后的图像的评价函数，用于遗传算法。(Prepared using matlab to solve image fusion evaluation function for the genetic algorithm.)

matlab函数图形化界面学习程序，有利于初学者学习GUI(graphical interface matlab function learning process will help beginners to learn GUI)

说明：  美赛 人员疏散模型 元胞自动机 美国大学生数学建模竞赛MATLAB示例程序(Evacuation Model Based on Cellular Automata)

苍穹神剑.txt为古龙的处女作。虽是第一部作品，但思路开阔，天马行空的剧情。以尽露无遗。(Heavens Excalibur. Txt to Gu Long' s debut. Although this is the first film, but open-minded, epoch plot. To Jin Lu exhaustive.)

绘制不同情况下的升余弦滚降系统频谱，并画出其各自对应的时域波形(Draw different circumstances raised cosine roll-off system spectrum, and draw their own corresponding time-domain waveform)