chengxu

基于时域有限差分法的带挡板平行板传输线的研究(Basierend auf der Finite-Differenzen-Methode im Zeitbereich mit Schallwand parallelen Platte übertragungsleitung)

包括主成分分析、因子分析、贝叶斯分析，数据模型归一化，模态振动，对信号进行频谱分析及滤波，调试通过可以使用，matlab程序运行时导入数据文件作为输入参数，IMC-PID是利用内模控制原理来对PID参数进行计算。(Including principal component analysis, factor analysis, Bayesian analysis, Normalized data model, modal vibration, The signal spectral analysis and filtering, Debugging can be used, Import data files as input parameters matlab program is running, The IMC- PID is using the internal model control principle for PID parameters is calculated.)

基于最差性能最优的稳健波束形成算法可以等价转换成加载样本矩阵求逆(LSMI)算法.提出了 一种新的求解方法, 准确地计算出Lag range 乘数, 给出了LSMI 算法中的最优加载量, 解决了对角加载技术中加载量估计难题.(The robust adaptiv e beamformer using w orse-case performance optimization can be converted to the loaded sample ma trix inv ersion (LSMI) algorithm equivalently.For the LSMI beamformer , a no vel method is develo ped to so lve the precise Lagrange multiplier , and the o ptimal loading level can be computed exactly.Most important, this method gives the efficient solution to finding the optimal loading level for diagonal loading.)

MPSK MQAM MPAM理论误码曲线对比(MPSK MQAM MPAM theoretical BER curve comparison)

this is a matlab file that contains a simulink simulation of a vctor control using simulink blocs of matlab

使用simulink仿真，实现潮流计算。。。非常详细，可以对学习潮流计算和simulink的提供帮助。 (Use simulink simulation, realization flow calculation. ʱ ?? ʱ ?? Very detailed, can help to study the trend of computing and simulink.)

位置指令为幅值为1.0的阶跃信号，r（k）=1.0。网络结构为1-4-1，高斯函数的参数值取Cj=[-2 -1 1 2]T ，B=[0.5 0.5 0.5 0.5]T 。 网络权值学习参数为η=0.30，α=0.05 。PID控制各参数的初RBF网络控制，被控对象为G（s）= 取采样时间为1ms，采用Z变换进行离散化，离散化后的被控对象为 y(k)=-den(2)*y（k-1）-den(3)*y(k-2)+num(2)*u(k-1)+num(3)*u(k-2) 始值为，kp=20， kd=0.3， ki=0.1。 (Position command for the step signal amplitude of 1.0, r (k) = 1.0. The network structure is 1-4-1, the Gaussian function parameters taken Cj = [-2-1 1 2] T, B = [0.5 0.5 0.5 0.5] T. Weight learning parameter η = 0.30, α = 0.05. PID control parameters at the beginning of each RBF network control, the controlled object is G (s) = take the sampling time is 1ms, using the Z transform discrete, discretized controlled object is y (k) =-den (2)* y (k-1)-den (3)* y (k-2)+num (2)* u (k-1)+num (3)* u (k-2) initial value, kp = 20, kd = 0.3, ki = 0.1.)

已知消息信号为一个长度为8的二进制序列；载波频率为 ，采样频率为4KHz。编程实现一种调制、传输、滤波和解调过程。(Known message signal is a binary sequence with a length of 8 the carrier frequency, the sampling frequency of 4KHz. Programming a modulation, transmission, filtering, and demodulation process.)

Program for decomposing a matrix by the Doolittle Algorithm

Delta function and its differential