langevinphasefield

随机接入协议P-ALOHA的matlab仿真(P-ALOHA protocol matlab simulation)

读取和写入raw格式图像，此格式图像文件存储一幅图中的全部像素点，并以每个像素点16bit数据保存(read and write a raw format 16-bit image)

　多输入多输出正交分频多工模拟器。 　　 　　正交分频多工:OFDM模拟器(外层函数) 　　 　　 　　create_channel:产生一个瑞利衰落信道复用,解的天线配置、正交分频多工结构、power-delay档案。 　　 　　 　　svd_decompose_channel:既然全网络知识是假设,在并行传输奇异值模式。这个函数分解这些频道模式。 　　 　　 　　BitLoad:适用bit-loading算法来实现预期的钻头和能量 (MIMO OFDM Simulator: OFDM.m: OFDM Simulator (outer function) create_channel.m: Generates a Rayleigh fading frequency-selective channel, parametrized by the antenna configuration, the OFDM configuration, and the power-delay profile. svd_decompose_channel.m: Since full channel knowledge is assumed, transmission is across parallel singular value modes. This function decomposes the channel into these modes. BitLoad.m: Apply the bit-loading algorithm to achieve the desired bit and energy allocation for the current channel instance. ComputeSNR.m: Given the subcarrier gains, this simple function generates the SNR values of each channel (each singular value on each tone is a separate channel). chow_algo.m: Apply Chow s algorithm to generate a particular bit and energy allocation. EnergyTableInit.m: Given the SNR values, form a table of energy increments for each channel. campello_algo.m: Apply Campello s algorithm to converge to the optimal bit and energy allocatio)

a m-file to use the psat program and find the switching sequence for restoration the fualted distribution system and shed the load in the system. to reach this goal we must detect the loop in the system and open a circuit breaker. so in the system graph the loops must be detected.

产生一个长为1000的二进制随机序列，“0”的概率为0.8，”1”的概率为0.2； 对上述数据进行归零AMI编码，脉冲宽度为符号宽度的50 ，波形采样率为符号率的8倍，画出前20个符号对应的波形（同时给出前20位信源序列） 改用HDB3码，画出前20个符号对应的波形 改用密勒码，画出前20个符号对应的波形 分别对上述1000个符号的波形进行功率谱估计，画出功率谱 改变信源“0”的概率，观察AMI码的功率谱变化情况(A length of 1000 random binary sequence, and " 0" with a probability of 0.8, " 1" with a probability of 0.2 the AMI code above zero, the pulse width of the symbol width of 50 , the waveform sampling rate Symbol rate 8 times, draw the top 20 of the waveform corresponding to the symbol (the first 20 and gives the source sequence) switch HDB3 code, the first 20 to draw a waveform corresponding to the symbol to switch Miller code, the first 20 symbols correspond to draw The waveforms of the symbol of the waveform 1000 power spectrum estimation, shown to change the source power spectrum " 0" , the probability of observation of the power spectrum of AMI code changes)

floyd算法主要用于最小生成树，最短路径，把散点输进去，就可以生成最短路径(loyd algorithm is mainly used for minimum spanning tree, shortest path, the scatter lost in, you can generate the shortest path)

K均值聚类，适合初学者学习，有详细备注。(K means segmentaion is suitable for the fresher,ditial applitation.)

应用MATLAB（或C）语言编写一幅灰度图像直方图统计程序(Application of MATLAB (or C) written in a gray-scale image histogram statistics program)

仿真psk信道的一篇，PDF格式，内有源代码，完美运行，不信可以试试哦(A channel simulation psk, PDF format, the source code, the perfect run, do not believe you can try oh)

实现了二维结构的拓扑优化设计，并且对程序的每一步进行了详细的解释和说明，对于拓扑优化的初学者来说，很有帮助(The topology optimization design of two-dimensional structure is realized, and every step of the program is explained and explained in detail, which is very helpful for beginners of topology optimization.)