shiliangqiyizhifa

现代谱估计方法的matlab实现，有列文森自相关法、协方差法、修正协方差法及伯格法(Matlab modern spectral estimation methods to achieve, there Levinson autocorrelation method, covariance method, modified covariance method and the Burg method)

与MATLAB相似的程序处理,仅供参考,如有雷同，纯属巧合(this is like matlab ,may you can download)

Sunspot activity is cyclical, reaching a maximum about every 11 years. Let s confirm that. Here is a plot of a quantity called the Zurich sunspot relative number, which measures both number and size of sunspots. Astronomers have tabulated this number for almost 300 years.

aic bic信息准则的使用，AR模型，确定阶数，等顶顶顶(AIC BIC)

三相pwm逆变并网仿真模型，相关研究的人可作参考(Three-phase pwm inverter grid simulation model can be used for studies of human reference)

it is for demo beutiful in the matlab

to search centroid from image

说明：  图象压缩方面的论文pdf格式 可用于毕业设计方面的工作(Image compression pdf format papers for school design work)

PSO PID 粒子群优化的最优控制器 用于交通流量控制 PSO PID 粒子群优化的最优控制器 用于交通流量控制(Particle Swarm Optimization PSO PID controller for optimal traffic flow control Particle Swarm Optimization PSO PID controller for optimal traffic flow control)

说明：  第 5 代移动通信系统 (5G) 是面向 2020 年之后的新一代移动通信系统 , 其技术发展尚处于探 索阶段 . 结合国内外移动通信发展的最新趋势 , 本文对 5G 移动通信发展的基本需求、技术特点与可 能发展途径进行了展望 , 并分无线传输和无线网络两个部分 , 重点论述了富有发展前景的 7 项 5G 移 动通信关键技术 , 包括大规模天线阵列、基于滤波器组的多载波技术、全双工复用、超密集网络、自 组织网络、软件定义网络及内容分发网络 . 本文还概括性地介绍了国内 5G 移动通信的相关研发活 动及其近期发展目标 .(The fifth generation mobile communication system (5G) is a new generation of mobile communication system after 2020. Its technological development is still in the exploratory stage. Combining with the latest trends of mobile communication development at home and abroad, this paper prospects the basic needs, technical characteristics and possible development ways of 5G mobile communication development, and divides wireless transmission and wireless network into two parts, focusing on rich. Seven key technologies of 5G mobile communication, including large-scale antenna array, filter bank-based multi-carrier technology, full duplex multiplexing, ultra-dense network, self-organizing network, software definition network and content distribution network, are prospected. The related research and development activities and recent development goals of 5G mobile communication in China are also briefly introduced in this paper.)