Victor`C.-Chen

直接序列扩频系统（DS，Direct Sequence）又称为直接序列调制系统或伪噪声系统（PN 系统），简称为直扩系统，是目前应用较为广泛的一种扩展频谱系统。要传送的信息经伪随机序列编码后对载波进行调制。在发信端越冬用扩频序列去扩展信号的频谱，在收信端，用相同的扩频友序列进行解扩，将展宽的频谱扩展信号还原成原始信号。因为伪随机序列的速率远大于要传送信息的速率，所以受调信号的频谱宽度将远大于要传送信息的频谱宽度，帮称之为扩频(Direct sequence spread spectrum (DS, Direct Sequence) modulation system, also known as direct sequence or pseudo-noise system (PN system), referred to as direct expansion systems, is currently the more widely used as a spread spectrum system. To send the information encoded by the pseudo-random sequence of carrier modulation. End of winter in the letter to extend the signal with the spreading sequence of spectrum, in the end prepared to receive and use the same sequence spread spectrum despreading friends, broadening the spectrum to restore the original signal expansion signals. Because the rate of pseudo-random sequence is much larger than the rate of information to be sent, so the frequency spectrum by adjusting the width of the spectrum is much larger than the width of the information to be sent to help is called spread spectrum)

ES A PRACRICA 2 DEL LABORATORIO DE DIGITAL

This file is lateral vehicle velocity observer which was verified via Carsim software and matlab/simulink.

用matlab编写的k-dtree，加快搜索，在点云拼合中应用广泛。(Matlab prepared with k-dtree, to speed up the search, put together in the point cloud in a wide range of applications.)

现代通信控制理论，该代码详细介绍如何用matlab源程序来判断系统的稳定性与否(Control of modern communication theory, the code details on how to use matlab source code to determine the stability of the system or not)

matlab高光谱入门程序，基本分类流程(matlab hyperspectral entry procedures, basic classification process)

基础PID控制的matlab仿真源代码。适合入门学习。(Basic PID control matlab simulation source code. Suitable for study entry.)

以矩形窗实现stft，以循环语句实现窗的移动(Rectangular window in order to realize stft, in order to realize loop windows mobile)

数字信号处理，滤波器的设计，使用Kaiser窗(Digital signal processing, filter design, the use of Kaiser window)

说明：  光伏系统的mppt跟踪控制方法，该方法效果较好，值得一试(MPPT tracking control method of photovoltaic system, which has good effect, is worth trying)