lmd

本文从矢量量化的角度对图像进行处理，程序经过验证，正确(From the perspective of vector quantization image processing, the program verified the correct)

MATLAB基础讲课笔记内容，适合初学者，(MATLAB based on the content of lecture notes, suitable for beginners,)

This is a two dimensional simulation in which a level set function is advected by a prescribed velocity field using first order upwinding.

在莱斯信道下调制方式为M-QAM的基本通信系统误码率计算公式和仿真(At Rice channel M-QAM modulation scheme is the basic communication system BER formulas and simulation)

说明：  四旋翼无人机是一种可以被遥控也可以在无人为控制的状态下执行预定任务的飞行器，与传统直升机相比四旋翼飞行器的机械结构简单，且具有高精度，灵活精度以及较低成本的特点，被广泛用于军事侦察，农艺播撒、快递派送、摄影工作等领域。四旋翼飞行器自身具有欠驱动、多变量、非线性等特性，在外界的噪声干扰情况下，增加了四旋翼无人机的不稳定以及控制系统的设计难度。所以对四旋翼飞行器的位姿控制的研究，可以开拓科研人员对控制算法以及滤波算法的认知，具有重要的研究意义。(Four-rotor UAV is a kind of aircraft that can be controlled remotely or perform scheduled tasks without human control. Compared with traditional helicopters, the Four-rotor UAV has simple mechanical structure, high precision, flexible precision and low cost. It is widely used in military reconnaissance, agricultural broadcast, express delivery, photography and other fields. Four-rotor UAV has the characteristics of under-actuation, multi-variable and non-linearity. Under the circumstance of external noise, the instability of Four-rotor UAV and the difficulty of control system design are increased. Therefore, the research on attitude control of Four-rotor aircraft can broaden the knowledge of control algorithm and filtering algorithm for researchers, and has important research significance.)

自相关信号检测仿真程序。在数据处理过程中，首先要检测信号的存在和大致位置。(Self-related signal detection simulation program. In the data processing, the first to detect the presence and approximate location of the signal.)

matlab源码，用于实现基于内容的图像检索(matlab source for content-based image retrieval)

三相正弦脉宽调制，可以自由设定调制比，脉冲数，可以观察波形(Three-phase sinusoidal pulse width modulation, can freely set the modulation ratio, pulse a few, you can observe the waveform)

极有用的数据处理程序，方便处理实验数据，并取得数学表达式(matlab)(very useful data processing procedures, facilitate the processing of experimental data and mathematical expression made (Matlab))

语音识别中几个常用例程： 语音信号高频提升、短时能量检测、过零率计算、LPCC系数计算、基于短时能量和过零率的语音信号端点检测。(voice recogniton)