DSSS

this is array indexing code

说明：  在2d不光滑曲面上的射线跟踪算法，效果比较好，希望可以帮助到大家(2d surface is not smooth in the ray-tracing algorithm, the effect is good, hope you can help to)

述是经典MUSIC算法的基本原理，许多限制是可以放宽或取消的。首先，关于均匀线阵的限制不是必须的，实际中可采用几乎是任意形状的阵列形式，只要满足在个独立信号源的条件下，矩阵具有个线性无关的列就可以了。其次，天线阵元在观测平面内无方向性这一点也不是必要的，而且还可以考虑三维空间的DOA估计问题，即不仅估计信号的方位角，还要估计它的俯仰角，当然MUSIC算法还用于频率、方位和俯仰的联合估计。(Above is the basic principle of the classical MUSIC algorithm, a number of restrictions can be relaxed or canceled. First, restrictions on ULA is not necessary, the actual form of an array can be almost any shape, as long as the signal source in the independent condition matrix has linearly independent columns on it. Second, the antenna elements in a plane non-directional observation it is not necessary, but could also be considered DOA estimation of three-dimensional space, that is not only estimated azimuth signals, but also to estimate its pitch angle, of course, also MUSIC algorithm joint estimation for the frequency, the azimuth and elevation.)

基于MatlabRTW的机器人伺服系统设计方案(MatlabRTW-based servo system of robot design)

神经网络预测,几个简单的列子，适合初学者(neural network prediction matlab programe)

网络模型的matlab实现(包括随机网络、小世界网络、无标度网络、以及拓扑性质计算程序)(matlab network model implementation (including random networks, small-world network, scale-free networks, and topological properties calculation program))

对正弦波进行FFT（快速傅立叶变换）得到幅频谱图，均方根谱图，功率谱图，对数谱图，并进行IFFT恢复出正弦波。(FFT and IFFT)

求洛伦兹信号的功率谱matlab程序，可以用来求其他信号的功率谱。(Power Spectrum Estimate )

用蚂蚁群算法　编写的函数优化　matlab程序(Ants swarm optimization with the preparation of procedures for the function optimization matlab)

MATLAB的时间序列分析相关函数,涵盖对时间序列分析所需要所有重要函数(MATLAB time series analysis of the correlation function, time series analysis covers all the important functions required for)