daitong

a simple method of pca. how to find mean and to normalize data

本源码是神经网络理论与MATLAB R2007实现的源码。(The source is the neural network theory and MATLAB R2007 realize the source.)

最小均方误差均衡器，误码率和信噪比的关系曲线(Minimum mean square error equalizer, the relationship between BER and SNR curve)

HVDC design in MATLAB/Simulink based vsc

基于Matlab的非线性电路混沌实验仿真程序，通过对非线性电路（蔡氏电路）与非线性动力学进行分析，建立非线性动力学方程，然后利用Matlab/Simulink软件进行仿真，研究系统波形图、单吸引子、双吸引子、相面图以及在不同的非线性电阻的导纳下的不同形状(Matlab based nonlinear circuit simulation program and chaos, through the non-linear circuit (Chua) and nonlinear dynamics analysis, nonlinear dynamic equations, and then use the Matlab/Simulink simulation software to study the system waveform, single attractor, double attractor, physiognomy maps and different shapes in different nonlinear resistor admittance under)

This code is useful for multi user mimo systems

旋转机械二维全息谱计算，是国外的成品模型，线性调频脉冲压缩的Matlab程序。( Rotating machinery 2-d holographic spectrum calculation, Foreign model is finished, LFM pulse compression of the Matlab program.)

In this paper we discuss the problem of recovering the vertices of a planar polygon from its measured complex moments.Because the given, measured moments can be noisy, the recovered vertices are only estimates of the true ones. The literature offers many algorithms for solving such an estimation problem. We will restrict our discussion to the Total Least Squares (TLS) data fitting models HTLS and STLS and the matrix pencil method GPOF. We show the close link between the HTLS and the GPOF method. We use the HTLS method to compute starting values for the STLS method. We compare the accuracy of these three methods on simulated data. 2005 Elsevier B.V. All rights reserved.

说明：  各种滤波器包括高斯、维纳、laplace、中值滤波器(Various filters, including Gaussian, Wiener, laplace, median filter)

The model used for creating the reference voltage is shown in Fig. 4. First, photovoltaic output current (Ipv) and output voltage (Vpv) are passed through a first order low pass filter with a magnitude of G = 1 and a time constant of T = 0.01 seconds in order to filter out the high frequency components or harmonics from these signals as shown in Fig. 5 and Fig. 6. The filtered current and voltage signals (Ipv_F and Vpv_F) are then fed into the MPPT control block that uses the Incremental Conductance Tracking Algorithm. An algorithm that is based on the fact the slope of the PV array power curve shown in Fig. 7 is zero at the Maximum Power Point (MPP), positive on the left of the MPP, and negative on the right. The MPP can thus be tracked by comparing the instantaneous conductance (I/V) to the incremental conductance (∆ I/∆ V) [11] as in (1):