filter

基于三角形单元有限元原理，计算桁架系统在外力作用下，各节点位移与单元应变。主程序BLOCKMAT.m，从输入文件中读入结点个数，单元个数，结点荷载个数，受约束边界点数，弹性模量，泊松比，厚度，单元定义数组，结点坐标数组，结点力数组，约束信息数组。输入文件int.txt不同参数代表不同的桁架结构。(on the basis of the principle of triangle finite element calculation truss system under the action of external force, displacement of each node and element strain. MAIN program MAIN. J m, read from input file node number, cell number, number of nodal load, a constrained boundary points, elastic modulus, poisson s ratio, thickness and unit defined array, node coordinate arrays, nodal force array, array constraints information. Input file int. TXT different parameters represent different truss structure.)

matlab课程编程【谷速软件】2D和3D+GUI的名称和类图的例子 (Courses matlab software programming speed [Valley] 2D and 3D+ example GUI name and class diagram)

插值与拟合，解方程，数据分析，多抽样率信号处理，最终的权值矩阵就是滤波器的系数。( Interpolation and fitting, solution of equations, data analysis, Multirate signal processing, The final weight matrix is ??the filter coefficient.)

说明：  异步电机的精确控制和速度辨识是交流传动系统中重要问题。在该仿真系统中，电机转速采用易于检测的电机定子电压和电流得到转速MRAS辨识算法来估算。由于速度辨识算法中电压模型的纯积分环节会引起的误差积累和漂移问题，采用改进积分型转子磁链估算模型来解决。(The precise control and the speed identification of AC motor are the very important issues on AC drive system.In this system, induction motor is controlled by the direct torque control, stator flux is estimated by u-n model observer that is effective in the full range of speed, motor speed is estimated by MRAS speed identification algorithm that is depended on the voltage and the current of motor stator easily detected. The modified integral rotor flux estimation model is used to solve the problem that the normal model can be affected by the error accumulation and drift of integral calculation in the voltage model of conventional speed identification algorithm. )

说明：  这是飞机的阮籍开发技术的创新，能够更好的帮助大家学习飞机的控制(feiji)

扩散的菲克第二定律的数值求解 第一次弄，请大家赐较(Colorific proliferation of the second law of the numerical solution of the first alley, please grant more)

介绍了MATLAB在电子领域的应用，配套了相关M文件的程序(Describes the application of MATLAB in the electronics field, supporting the relevant M-file program)

这是阵列信号处理中的一种music算法进化版，root music算法。(this is a matlab program about root_music.)

仿真Alamouti 2发1收空时编码性能，调制方式为QPSK(Simulation for Alamouti 2 rounds of a received space-time coding performance, the modulation method is QPSK)

（7，4）系统循环码编码器 code_out = cyclic_coder(code_in) 该系统循环码编码器的生成多项式是g(x) = x^3 + x + 1 输入参数code_in是信息码字，是1×4的行向量；输出code_out是编码后的系统 循环码字，是1×7的行向量。 函数运行时，同时画出输入信息码字和循环码字的波形图。( (7,4) cyclic code system Encoder code_out = cyclic_coder (code_in) cyclic code encoder of the system generating polynomial is g (x) = x ^ 3+ x+ 1 of information input parameters code_in code word is 1 × 4 row vector output code_out System is encoded codeword cycle, the row is 1 × 7 vector. Function to run at the same time draw the input code word and code word cycle waveform.)