Amplitude_Frequency_Phase_FFT

运用matlab进行EXCEL文件读取程序，希望对大家有帮助！(EXCEL file using matlab to read the program, want to help you!)

DFT进行频谱分析时的三种现象 1、混叠：对连续信号采样，要求连续信号是带限的，采样频率要足够高。Fs应满足Nyquist采样定理才不产生混叠。 采样前加低通滤波器防混叠 2、频谱泄漏：DFT对时域信号进行了截断（相当于采样信号乘了一个窗函数），时域的乘积相当于频域卷积，改变了原信号频谱。 改用其他窗函数（非矩形）改善泄漏。 3、栅栏现象：DFT 只给出了频谱在采样点上的取值，采样点间的频谱内容丢失。(DFT spectrum analysis of a three phenomena, aliasing : continuous signal sampling, requiring continuous signal is band-limited, the sampling frequency should be high enough. Fs meet the Nyquist Sampling Theorem would not have aliasing. Sampling former low-pass filter plus anti-aliasing 2, spectrum leakage : DFT right time domain signal a disconnect (equivalent to a sampling signal by a window function). time domain is equivalent to the product of frequency-domain convolution, changes in the spectrum of the original signal. Window functions to switch to other (non-rectangular) to improve leakage. 3, fenced phenomenon : DFT spectrum is given only at the sampling point value, sampling points of the spectrum as lost.)

一篇IEEE上的比较好的视觉估计的文章。(Appearance-Based Gaze Estimation Using Visual Saliency )

EigenFaces algorithm for face recognitionwith GUI interface(load_database.m,eigenface.m,eigenfaces.fig)

某工业系统可等效为二阶环节带延迟...且执行机构具有0.07的死区和0.7的饱和区。采样时间T=0.01；系统的输入r(t)=1.5 要求1）设计一模糊控制器，使系统输出尽快跟随系统输入；2）模糊控制与PID控制的性能进行比较；3）系统有无延迟性能进行比较(An industrial system can be equivalent to second-order part of the implementing agencies with a delay ... and the dead with a .07 and 0.7 saturation. Sampling time T = 0.01 the system input r (t) = 1.5 requirement 1) design a fuzzy controller, the system output as soon as possible to follow the system input 2) fuzzy control and PID control performance comparison 3) whether the delay in the system performance comparison)

this is for simulation of microturbine

支持向量机原理与仿真 (Support vector machine theory level simulation)

Graphics and GUIs whit Matlab

I write the code to simulation probability for simple electronic circuit in Statistical Analysis of Dynamic Systems course. This file also include my presentation .

关于旋量理论的Matlab描述和相应的源码实例，适用于多体运动的运动学分析和控制的研究(on Screw Theory of Matlab description and the corresponding source code examples, apply to multi-body kinematics analysis of the movement and control of)