4.2 基于GUI交互操作的数字图像处理实现

带通滤波实现各种滤波窗口的带通滤波功能，汉宁窗(bandpass filter)

精通Matlab的部分例子，较为全面包含了matlab的基础应用(Proficient in matlab code)

用来计算电磁兼容屏蔽效能的程序，matlab程序(used to calculate EMC shielding effectiveness of procedures, procedures Matlab)

LDPC encoding and decoding of rate 4/7

BOOST升压电路，输入电压为5v，输出电压为15v,采用无源控制进行系统的闭环控制，调节占空比(BOOST boost circuit the input voltage is 5v, the output voltage is 15v,with passive control for closed loop control system，and change the duty cycle)

功率谱估计的应用范围很广，在各学科和应用领域中受到了极大的重视。在《现代信号处理》课程中讲述了经典谱估计和现代谱估计这两大类谱估计方法；经典谱估计是基于傅立叶变换的，虽然具有运算效率高的优点，但是频谱分辨率低同时旁瓣泄漏严重，对长序列有着良好的估计。为了克服经典谱估计的缺点，人们开展了对现代谱估计方法的研究。现代谱估计是以随机过程的参数模型为基础的，有最大似然估计法、最大熵法、AR模型法、预测滤波器法。现代谱估计对短序列的估计精度高，同经典谱估计互为补充。在认真学习了现 代谱估计方法后，我选择了现代谱估计中的AR模型法的仿真作为题目。下面给出AR模型的相关理论和仿真实现。(Power Spectral Estimation of very extensive, in all disciplines and fields of application of a great deal of attention. The "modern signal processing" on the curriculum of classical and modern spectral estimation spectrum is estimated that the two types of spectrum estimation method; Classical spectrum estimation is based on Fourier transform, although high computing efficiency advantages, but also low-resolution spectrum Sidelobe serious leakage of long sequences have good estimates. In order to overcome the classic shortcomings of the spectrum estimation, there have been a pair of modern spectral estimation methods. Modern spectral estimation is the random process model parameters based on the maximum likelihood estimation, maximum entropy method, AR model, forecast filter. Spe)

说明：  最小二乘法的简单应用，以及算法实现，作为参考。(Simple application of least squares, and the algorithm, as a reference.)

This model demonstrates a DC-AC converter. 3 leg Mosfet operated inverter is constructed . Can be used to demonstrate the relationship of input DC, output voltage, modulation index , filter selection and switching frequency. 3rd harmonic injection features

基于DQ轴同步旋转坐标轴系数学模型下的双馈发电机simulink模型。(Based on the DQ-axis synchronous rotating frame mathematical model of the shaft under the simulink model of doubly-fed generator.)

光流（运动估计）经典算法Horn and Schunck算法MATLAB程序(Horn and Schunck MATLAB)