normalized_antenna_angle

求解窗长自适应的短时傅立叶变换最佳窗长算法(Solving long-adaptive window short-time Fourier transform algorithm for the best window length)

本文针对基于经验模态分解ＥＭＤ的时空滤波器存在的固有模态函数分量中频率混叠交叉导致有用信号与噪声一起被滤除的问题结合小波在时间尺度两域表征信号局部特征的特性提出了一种基于能量估计实现ＥＭＤ分解层数确定(In this paper, based on empirical mode decomposition EMD temporal filter mode functions inherent component of cross-frequency aliasing and noise together lead to useful signal is filtered in the time scale of the problem combined with wavelet domain characterization of two local features of the signal characteristics of proposed achieve energy estimation based on EMD decomposition level determined)

已知弹性模量计算超声波(横波)穿透固体与液体界面时的能量分配算法。(Ultrasonic elastic modulus (shear wave) to penetrate the solid and liquid interface energy allocation algorithm.)

混沌时间序列多步自适应预测方法，非常有用，采用自适应算法，比局部算法要准确(chaos time series prediction)

有关PCM编码的，并有误码率分析，无密码(The PCM coding, no password)

the introduction to matlab is lecture of MIT. it is very good for beginner(the introduction to Matlab is lecture of MI T. it is very good for beginner)

《机械振动基础》是为航空宇航科学与技术、机械工程、力学、动力工程和交通运输工程等专业的本科生编写的基础课教材。《机械振动基础》共分6章，包括单自由度系统的振动、多自由度系统的振动、无限自由度系统的振动、振动分析的近似方法和数值方法、非线性振动以及振动实验。附录介绍了如何使用数值分析软件平台MATLAB计算振动问题。《机械振动基础》结构严谨，内容丰富，强调分析、计算与实验相结合，借鉴了国际著名大学的机械振动教学计划，融入了作者多年的教学和研究成果，反映了工程振动领域的新进展。("Base" mechanical vibration is written for Aerospace Science and technology, mechanical engineering, mechanical, power engineering and transportation engineering and other professional undergraduate course teaching. "Base" mechanical vibration is divided into 6 chapters, including single degree of freedom system, the vibration of multi degree of freedom system vibration, infinite degree of freedom vibration system, the vibration analysis of the approximation method and numerical method, the nonlinear vibration and vibration experiment. The appendix describes how to use the numerical calculation and analysis of vibration problem of software platform MATLAB. "Base" mechanical vibration strict structure, rich in content, stress analysis, calculation and experiment are combined, the mechanical vibration program of international famous university, the author has incorporated many years of teaching and research, reflecting the new progress of Engineering Vibration field.)

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.)

this is an open source and free code for calculation of E&B filed in presence of a current line.

Cplex软件的matlab接口；来自CPLEX_Studio1261版本(The Matlab interface of Cplex software; from the CPLEX_Studio1261 version)