algebra-code-for-communication

一种基于信号二阶四阶矩的信噪比估计方法，该文件中包含该方法的文章以及matlab程序。(This estimation method is based on the signal second-order signal-to-noise ratio of the fourth moment. The file contains a paper and a code.)

本文分析了多级维纳滤波器的特性，在加性噪声和二维天线阵列如均匀圆阵、均匀面阵、十字阵等条件和背景下，对信源个数和信源参数估计问题进行了研究，提出了基于多级维纳滤波器前向分解特性的快速参数估计方法，同时提出了基于多级维纳滤波器的二维ESPRIT参数估计方法，该类方法无需协方差矩阵的估计运算及分解运算，计算复杂度较低。另外，还提出了对信源个数的估计算法。(This paper analyzes the characteristics of multistage Wiener filter, in the additive noise and the two-dimensional antenna array such as a uniform circular array, the uniform array, cross array conditions and background, the source number and source parameter estimation problem undertook study, put forward based on Multistage Wiener filter prior to the decomposition characteristics of fast parameter estimation method, at the same time based on Multistage Wiener filter 2D ESPRIT parameter estimation method, the method does not need to estimate of covariance matrix calculation and decomposition, relatively low computational complexity. In addition, also put forward for source number estimation algorithm.)

zigbee的一些基础知识，引脚及其相关协议等(basic zigbee )

ICD for MTI-G IMU Sensor

RFM 70 radio Transever 2.4GHz

利用NPW模型实现雷电放电过程的路径模拟(Using NPW model to simulate the path simulation of lightning discharge process)

winner+项目信道校正数据，大尺度、小尺度、视距、非视距信道参数校正测量数据(winner+ project channel calibration data, large-scale small scales, sight, NLOS channel parameter calibration measurement data)

pwm整流器的建模仿真，感应双馈发电机系统的仿真，复化三点Gauss-lengend公式求pi。( Modeling and simulation pwm rectifier Simulation of doubly fed induction generator system, Complex of three-point Gauss-lengend the Formula pi.)

无线网络中分集合并，包含原理，流程图，仿真图，源代码(Cooperative Diversity in Wireless Networks)

通信系统仿真原理与无线应用 《通信系统仿真原理与无线应用》系统地介绍通信系统的设计、分析和仿真方法，还提供了大量极具参考价值的仿真实例。(Simulation principles of communication systems and wireless applications. "A systematic introduction to the design, analysis and simulation of communication systems, it also provides a large number of simulation examples of great reference value.)