qh737

This MATLAB exercise designs and implements a pitch period detector based on detecting and tracking peaks in the autocorrelation of the LPC error signal during regions of voiced speech. The pitch detection procedure is called the SIFT (Simple Inverse Filtering Tracking) method. The SIFT pitch period detector uses a secondary autocorrelation peak in order to detect and correct pitch period detection errors due to effects such as pitch period doubling and related phenomena.

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检测矩形 识别圆，矩形，三角形形状 直接在图像上显示出结果(Rectangle detection Detect the rectangle recognition circle, rectangle and triangle shape, and display the results directly on the image.)

基于粒子群算法的PID参数设置。其中程序比较先进。(Particle Swarm Optimization Based on the PID parameters. One of the more advanced procedures.)

时间预测模型AR，AR模型的算法，对数据进行预测。(Time prediction model AR, AR model algorithm, the data to predict.)

基于互功率谱的时延估计，ofdm系统仿真 含16qam调制 fft 加窗 加cp等模块，有较好的参考价值。( Based on the time delay estimation of power spectrum, ofdm system simulation including 16qam modulation fft windowing modules plus cp, There are good reference value.)

students learning code

说明：  matlab潮流计算程序 多是基于输电网开发的，而对于配电网中的潮流计算程序较少，真对辐射型配电网的特点，开发了用于配电网潮流计算的MATLAB程序，该程序采用新的支路选择方法，无需对网络进行复杂的编号。(matlab flow calculation procedure is based on multi-grid development, and for power distribution network power flow calculation program less true on the characteristics of radial distribution networks, developed for distribution power flow calculation of the MATLAB program that uses the new branch selection method, without the complexity of the network number.)

自编奇异值MATLAB程序，利用奇异值去除信号噪声。以供参考。(Editing the singular value MATLAB, using the singular value to remove noise signal. For your reference.)

Linear algebra problems!