qiaokezhuchengxu

it is a matlab program that describes DVB-S channel and simulation of Viterbi decoding

说明：  estimation of mutual information

Viterbi_init coding, wireless communication

定位技术是无线传感器网络中关键的基础支撑技术, 目前提出了许多静态网络的节点定位算 法, 移动无线传感器网络的定位研究相对较少. 针对定位节点和参考节点随机运动的网络模型, 提出了 一个基于动态网格划分的蒙特卡罗定位算法. 算法中当接收的参考节点数超过一定阈值时使用最远距 离节点选择模型, 选出部分参考节点参与定位和信息转发, 节约能耗. 接着基于选择的或所有接收的参 考节点构建采样区域, 进行网格划分, 使用网格单元数计算最大采样次数, 在采样区域内采样并使用误 差补偿的运动模型进行过滤, 提高了采样效率, 减少了计算开销, 并保证了较好的定位精度. 仿真实验表 明算法在定位精度, 计算开销、能耗等方面都具有较好的性能.(Positioning technology is critical in wireless sensor networks based supporting technologies, currently made many static network node localization algorithms, the positioning of mobile wireless sensor network research is relatively small. Locate node and a reference node for random motion network model, proposed a Dynamic meshing based Monte Carlo localization algorithm. algorithm when the received reference nodes exceeds a certain threshold, the most distant node selection model selects some reference nodes involved locating and forwarding information, save energy. then based on the selection or building all received reference node sampling area, meshing, the number of grid cells used to calculate the maximum sampling frequency, the sampling area sampling and using motion model error compensation filter to improve sampling efficiency, reducing the computational overhead and to ensure a better positioning accuracy. Simulation experiments show that the algorithm in positioning accuracy,)

说明：  用MATLAB编写的运用Monte Carlo method数值积分的实例程序。可供初学者参考学习！(TETRAHEDRON_MONTE_CARLO is a MATLAB library which estimates the integral of a function over a tetrahedron using the Monte Carlo method. The library makes it relatively easy to compare different methods of producing sample points in the tetrahedron, and to vary the tetrahedron over which integration is carried out. )

输入三条边，判断是否可构造三角形，判断三角形类型(Enter three sides, to determine whether the triangles can be constructed to determine the type triangle)

一段小波变换程序，演示了小波变换的具体步骤(Wavelet transform for some procedures, to demonstrate the concrete steps of wavelet transform)

说明：  Matlab讲义，讲解Matlab的基本使用方法，适合入门者学习(Matlab lectures to explain the basic use of Matlab for beginners to learn)

应用于单支路输入，多支路输出的分数间隔忙估计恒模算法(application for single intput mutiple output whicn used to fraction score interval blind equlization for cma)

双馈电机的低电压穿越技术，电力科学院迟永宁(Double-fed motor low voltage across the technology, Electric Power Research Institute no later than Yongning)