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qpsk仿真系统框图，实现四项调制系统仿真实验。(qpsk diagram of simulation system to achieve four modulation system simulation experiments.)

Create graphs of 3 dimensional logarithmic of a function named F(Theta,Phi), theta the elevation angle and phi the rotational angle. Converts to Cartesian coordinates and plots a surface plot with color pattern radiating from the origin.

simulink仿真试验 simulink仿真试验 (Simulink simulation Simulink simulation test Simulink simulation)

autocov computes the autocovariance between two column vectors X and Y with same length N using the Fast Fourier Transform algorithm from 0 to N-2. The resulting autocovariance column vector acv is given by the formula: acv(p,1) = 1/(N-p) * sum_{i=1}^{N}(X_{i} - X_bar) * (Y_{i+p} - Y_bar) where X_bar and Y_bar are the mean estimates: X_bar = 1/N * sum_{i=1}^{N} X_{i} Y_bar = 1/N * sum_{i=1}^{N} Y_{i} It satisfies the following identities: 1. variance consistency: if acv = autocov(X,X), then acv(1,1) = var(X) 2. covariance consistence: if acv = autocov(X,Y), then acv(1,1) = cov(X,Y)

三维FDTD的UPML吸收边界条件下的C程序(The three-dimensional FDTD UPML absorbing boundary C program)

本代码是描述串联机器人的雅克比矩阵的推导和灵巧度的分析(this code is to describe the Jacob matrix of the serial robot and its dexterity)

一个航天器的动力学响应程序，采用模态价值分析准则和内平衡法则进行模型降阶。(Dynamic response of a spacecraft program, the use of value analysis mode within the balance guidelines and rules for model reduction.)

利用电流源模拟光伏输出，同时实现单相并网的matlab仿真，在其中模拟实现了光伏的mppt控制，同时实现了光伏电池的最大能量并网。(Use current source simulation of PV output, single-phase grid matlab simulation, in which the analog implementation of PV mppt control, while achieving maximum energy photovoltaic cells and networks.)

New Edge-Directed Interpolation

Universal Space-Time-Frequency Block Codes Design for the Multiband MIMO-OFDM Systems