xiaobo

说明：  完整的ofdm仿真程序，在matlab上实现(Complete OFDM simulation program in matlab to achieve)

信号与系统基础知识包括连续信号与模型、离散信号与模型；常用信号变换包括Z变换、Chirp Z变换、FFT变换、DCT变换和Hilbert变换等；离散系统结构包括IIR、FIR和Lattice结构；IIR滤波器设计包括模拟和数字低通、高通、带通与带阻滤波器设计，以及基于冲激响应不变法和双线性Z变换法的IlR滤波器设计等；FIR滤波器设计包括基于窗函数、频率抽样法和切比雪大逼近法的FIR滤波器设计；平稳信号分析包括经典功率谱估计、基于参数模型的功率谱估计和基于非参数模型的功率谱估计；非平稳信号分析包括STFT变换、Gabor展开、Wigner-Ville分布与Choi-Williams分布；非高斯信号分析包括基于非参数法的双谱估计、基于参数模型的双谱估计，以及双谱估计的应用；信号处理的GUI实现包括滤波器设计与分析的FDATool工具和滤波器设计与信号分析的SPTool工具。(signals and systems based on knowledge, including continuous signal with the model, discrete signal and model; Common signals include transform Z transform, chirp Z-transform, FFT transform. DCT and Hilbert transform; Discrete system architecture including IIR, FIR and Lattice structure; IIR filter design, including analog and digital low-pass, high-pass, band-pass and band stop filter design, Based on the impulse response of the same law and bilinear Z transform the IlR filter design; FIR filter design including on the basis of the window function, frequency sampling and snow all over the big approximation of FIR filter design; stationary signal analysis include classical power spectrum estimation, Based on the model parameters of the power spectrum estimation and non- parametric model b)

关于自适应反步控制的双螺旋桨自动靠泊文献，最新的(The auto-berthing of a ship requires excellent control for safe accomplishment. Crabbing, which is the pure sway motion of a ship without surge velocity, can be used for this purpose. Crabbing is induced by a peculiar operation procedure known as the push-pull mode. When a ship is in the push-pull mode, an interacting force is induced by complex turbulent flow around the ship generated by the propellers and side thrusters. In this paper, three degrees of freedom equations of the motions of crabbing are derived. The equations are used to apply the adaptive backstepping control method to the auto-berthing controller of a cruise ship. The controller is capable of handling the system nonlinearity and uncertainty of the berthing process. A control allocation algorithm for a ship equipped with two propellers and two side thrusters is also developed, the performance of which is validated by simulation of auto-berthing)

卡尔曼滤波器 matlab实现(Kalman filter matlab implementation)

用于512点循环卷积，采用的是重叠保留法，和重叠相加法(For the 512-point circular convolution, using overlapping retention law, and overlap-add method)

用法： {$R *.dfm} {$R uac.res} 2个功能： 1、程序关闭时不再弹出无用的兼容性助手 2、使程序可弹出uac授权申请(Usage: {$ R* .dfm} {$ R uac.res} 2 functions: 1, when the program is closed no longer eject unwanted Compatibility Assistant 2, so that the program can be authorized to apply the pop uac)

在matlab开发环境下，实现对直流电动机调速系统的仿真(MATLAB development environment to achieve the simulation of DC motor speed control system)

说明：  本程序为matlab源代码，供大家交流学习，语音识别专用代码(This program is EMD-HHT-M source code for all to share learning, speech recognition-specific code)

在完成gps信号跟踪之后，进行接收机的位置解算。得到接收机的正确位置。(After the completion of gps signal tracking, the receiver of the positioning solution. Get the correct position of the receiver.)

混沌初始化的PSO，在图像阈值分割方面的应用，自己写的(Chaos initialized PSO, the image threshold segmentation application, write your own)