filter_prj

自己编的程序，实现快速傅里叶变化，结果和matlab自带的fft2一样。(Own series of programs, fast Fourier transform, results and matlab native fft2 the same.)

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.)

北京林业大学关于matlab课程的最新课件，非常的详细，尤其对矩阵计算部分非常好。值得作为参考(Beijing Forestry University courses on the latest courseware matlab, very detailed, especially for matrix calculation part of the very good. Worthwhile as a reference)

为了满足数字通信及其它商业应用的需求，语音压缩编码技术得到了迅速发展。介绍了目前语音压缩编码技术 的研究进展，主要包括连续可变斜率增量调制(CVSD)、小波分析、多脉冲激励线性预测编码、散布脉冲码激励线性预 测(DP-CELP)、多重脉冲散布非均匀代数码本激励线性预测(MPD-USACELP)、波形内插(Ⅷ)、线谱对(频率)(LSP)的量化(In order to satisfy deman凼of the digital communication and other commercial applicatiOils， the speech compression technology has been developed rapidly．The present research progress in speech compression technology is introduced in this paper including CVSD， wavelet analysis and its application to speech coding，MPLPC，DP-CELP，MPD-USACELP，Ⅷand quantification of LSF．These algorithins)

机器人的matlab仿真代码，用于机器人学习(Robot simulation matlab code)

基于matlab的神经网络训练方法，其中采用不同的隐层，自己编写的，实现多类数据的分类(It ia a code to learn network.)

双层规划模型的遗传算法求解的Matlab源码(GA for Bilevel Programming Model with Matlab)

this is both histogram and otsu code

说明：  支持向量机的matlab实例，对学习支持向量机有很大的帮助。(The matlab example of the support vector machine is of great help to the learning support vector machine.)

本程序是用来实现SVM算法，可以用在 模式识别处理中。(This procedure is used to implement SVM algorithm can be used in pattern recognition processing.)