aloha

seismic response analysis using wilson-θ method for MDOF structures

二 维 时 域 有 限 差 分 法MATLAB 代 码(Two-dimensional finite difference time domain method MATLAB cod)

说明：  对梁进行动力学分析，计算梁在集中力的作用下的变形(Dynamic analysis of the beam, for beam under the action of concentrated forces in the deformation)

智能天线的核心技术之一是波达方向估计,在无线通信中具有重要作用。MUSIC算法是一种经典的DOA估计算法,但因其计算量大、对于相干及小信噪比信号无法分辨等缺陷,故有较多的改进算法被提出。文中研究了求根MUSIC算法、基于空间平滑技术的MUSIC算法、改进MUSIC算法及修正MUSIC算法。通过仿真分析了角度间隔、信噪比、信号相干对改进MUSIC算法分辨率的影响。以上几种改进MUSIC算法进一步发挥了该算法高分辨率的优势,且有利于其在智能天线方面的应用。(One of the core technology of smart antenna is DOA estimation, which plays an important role in wireless communication. MUSIC algorithm is a classic DOA estimation algorithm, but because of its large amount of computation, the coherent and small signal to noise ratio of the signal can not be resolved and other defects, so there are many improved algorithms are proposed. This paper studies the root MUSIC algorithm based on spatial smoothing technique, the improved MUSIC algorithm, MUSIC algorithm and modified MUSIC algorithm. The influence of angle interval, signal to noise ratio and signal coherence on the resolution of the improved MUSIC algorithm is analyzed by simulation. The above improved MUSIC algorithm to further play the advantage of the high resolution of the algorithm, and it is conducive to the application of the smart antenna.)

比较详细地介绍了Matlab中数组、矩阵、字符变量、控制语句、图形输出以及Simulink等功能、用法的教材。(Matlab/Simulink tutorial on array, variables， control flow, simulink, etc.)

Implements Frequency Shift Keyed (FSK) receiver at Bell 202 standard

使用SGP模型进行轨道计算的matlab源码 使用两行星历TLE(Simplified perturbations models are a set of five mathematical models (SGP, SGP4, SDP4, SGP8 and SDP8) used to calculate orbital state vectors of satellites and space debris relative to the Earth-centered inertial coordinate system. This set of models is often referred to collectively as SGP4 due to the frequency of use of that model particularly with two-line element sets produced by NORAD and NASA.)

应用matlab/dsp builder可以对多种类型的电子线路模块或系统进行建模、分析和硬件实现，本文档给出了一些使用模块的设计实例，让大家更好的学习。(Application matlab/dsp builder can be various types of electronic circuit modules or systems modeling, analysis and hardware implementation, this document gives some examples using the design module, so that we better learning.)

西安电子科技大学有关阵列信号处理的课件，非常实用，欢迎下载(Xi an University of Electronic Science and Technology related courseware array signal processing, very practical, welcome to download)

说明：  应用在认知无线电频谱检测中。环境：经过加性白噪声的信号。功能：求解虚警概率和漏检概率。(Used in cognitive radio spectrum detection.Environment: after additive white noise signal.Function: to solve the false alarm probability and missed detection probability.)