BPSKMRC

这是自由空间光通信实现OOK、PPM、DPPM调制解调并计算在高斯信道中的误码率的Matlab程序。(This is a free-space optical communications to achieve OOK, PPM, DPPM modulation and demodulation in the Gaussian channel and calculate the bit error rate in Matlab.)

说明：  决策树分类法识别ASK,PSK,FSK六种数字信号的调制识别(Decision tree classification for modulation recognition of ask, PSK and FSK digital signals)

ML python library scratch

第1章　用于可靠数字传输和存储的编码 第2章　代数引论 第3章　线性分组码 第4章　重要的线性分组吗 第5章　循环码 第6章　二进制BCH码 第7章　非二进制BCH码、RS码及其译码算法 第8章　大数逻辑可译码有限几何码 第9章　线性分组码的网络 第10章　基于可靠性的线性分组码软判决译码算法 第11章　卷积码 第12章　卷积码的最优译码 第13章　卷积码的次优译码 第14章　基于网络的软判决译码算法 第15章　级联编码、码分解与多阶段译码 第16章　Turbo编码　 第17章　低密度单奇偶校验码 第18章　网络编码调制 第19章　分组编码调制 第20章　纠突发错误码 第21章　纠突发错误卷积码 第22章　自动请求重传（ARQ）策略 附录A　伽罗华域的表 附录B　GF（2m）中元素的最小多项式 附录C　长度至2　10-1的二进制本原BCH码的生成多项式 9.6 卷积码 (Error-controlled coding techniques are used to detect and/or correct errors that occur in the message transmission in a digital communications system. Wireless personal channels used by mobile communications systems and storage systems for digital multimedia data all require the implementation of error control coding methods. Demonstrating the role of coding in communication and data storage system design, this text illustrates the correct use of codes and the selection of the right code parameters. Relevant decoding techniques and their implementation are discussed in detail. Providing communication systems engineers and students with guidance in the application of error-control coding, this book emphasizes the fundamental concepts of coding theory while minimising the use of mathematical tools. * Reader-friendly approach ti coding in communication systems providing examples of encoding and decoding, information theory and criteria for code selection * Thorogh descriptions of releva)

Suzuki信道仿真,用于多路径信道衰落.综合大尺度衰落和小尺度衰落.可用来仿真频率选择性衰落以及时间选择性衰落.(Suzuki channel simulation for multi-path fading channel. Integrated large-scale fading and small-scale fading. Can be used to simulation of frequency selective fading and time selective fading.)

说明：  信号样本自相关分析，IQ两路绘制波形，频偏估计(Signal sample autocorrelation analysis, IQ two-way waveform drawing, frequency offset estimation)

说明：  线性相位 FIR 低通、高通、带通和带阻滤波器的设计方法，频率采样设计法的基本概念和线性相位的实现方法。几种线性相位的特点，熟悉和掌握矩形窗、三角形窗、汉宁窗、海明窗、布莱克曼窗、凯塞窗设计 IIR 数字滤波器的方法，频率抽样设计法的线性相位的设计方法，并对各种线性相位的频率抽样法的设计给出调整和改进。 利用 MATLAB 进行各类 FIR 数字滤波器的设计方法。(The design method of linear phase FIR low pass, high pass, band pass and band stop filter, the basic concept of frequency sampling design method and the realization method of linear phase. Familiar with and master the design methods of IIR digital filter of rectangle window, triangle window, Hanning window, Heming window, Blackman window and Kaiser window, and the design methods of linear phase of frequency sampling design method, and adjust and improve the design of frequency sampling method of various linear phases. Matlab is used to design all kinds of FIR digital filters.)

IEC103规约应用的知识要点文档，对学习iec103协议的人帮助很大(IEC103 application of the knowledge elements of the Statute of the document, to learn iec103 agreements were of great help to)

在OPNET平台上对动态源路由协议的一个完整仿真，可以看到网路中譬如延迟吞吐量等各个关键的参数(n OPNET platform for dynamic source routing protocol simulation of a complete, you can see the various critical parameters such as network latency throughput)

针对传统线性调频(LFM)信号参数估计算法中复杂的搜索和计算问题，提出了一种不需要参数搜索的快速 LFM信号参数估计算法。该算法先用希尔伯特变换估计LFM信号瞬时相位，再用二次相位函数拟合LFM信号瞬 时相位从而得到初始频率和调频斜率的估计(The traditional linear frequency modulation (LFM) signal parameter estimation algorithms and computational complexity of the search problem, we propose a fast search without LFM signal parameter estimation algorithm. The algorithm first estimated with the Hilbert transform of LFM signal instantaneous phase, and then the second phase of LFM signal instantaneous phase function fitting to obtain the initial estimates of the frequency and chirp rate)