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波浪中船舶运动的仿真及预报研究 船舶运动数学模型(Wave the ship motion simulation and forecasting of ship motion mathematical model)

本程序是一个基于matlab的雷达SAR成像自聚焦算法，对于学习雷达信号处理的人有帮助。(This procedure is a matlab-based imaging radar SAR Autofocus Algorithm for the study of radar signal processing has to help people.)

说明：  BPPID程序 刘金坤 先进pid控制matlab仿真(BPPID pid control procedures Liu Jinkun advanced simulation matlab)

基于matlab的实现ICP算法，可读性强， 适合初学者(ICP algorithm based on the realization of matlab, readable, and suitable for beginners)

基于机器学习的认知无线电频谱感知,机器学习的认知无线电频谱感知(Based on machine learning cognitive radio spectrum sensing, machine learning, cognitive radio spectrum sensing)

Sigma_delta调制器的matlab模型和完整代码，可通过仿真观察输入输出信号波形以及输出的频谱，最后还说明了如何计算信噪比(Sigma_delta modulator of matlab models and complete code, can observe the simulation input/output signal waveform and the output spectrum, finally also illustrates how to calculate the SNR)

PFCM clustering algorithm

数字信号处理教材第三版中的第一章中的程序(dsp of chapter1)

HOPFIELDNETWORK M-file for HopfieldNetwork.fig . HOPFIELDNETWORK, by itself, creates a new HOPFIELDNETWORK or raises the existing singleton*. H = HOPFIELDNETWORK returns the handle to a new HOPFIELDNETWORK or the handle to the existing singleton*. HOPFIELDNETWORK( CALLBACK ,hObject,eventData,handles,...) calls the local function named CALLBACK in HOPFIELDNETWORK.M with the given input arguments. HOPFIELDNETWORK( Property , Value ,...) creates a new HOPFIELDNETWORK or raises the existing singleton*. Starting from the left, property value pairs are applied to the GUI before hopfieldNetwork_OpeningFunction gets called. An unrecognized property name or invalid value makes property application stop. All inputs are passed to hopfieldNetwork_OpeningFcn via varargin.

用基于 Matlab 的小容量 FFT (比如 256×256)程序，将取样窗口划分为 若干个全等的小矩形,对每个小矩形内离散点的复振幅作 FFT 变换,然后将所有变 换结果叠加，再乘以复数相位因子,相当于对整个物面上点进行菲涅耳衍射计算， 利用这种方法可以迅速的实现高精度的轴对称傍轴光学系统中的激光衍射计算 (With a small volume based on Matlab FFT (eg 256 × 256) procedure to sample window divided into a number of small identical rectangles, each small rectangle of discrete points within the complex amplitude for the FFT transform, and then transform the results of all the superposition multiplied by the complex phase factor, the equivalent point on the object plane Fresnel diffraction calculation, the use of this method can rapidly achieve high-precision optical system axis of symmetry in the paraxial calculation of laser diffraction)