ofdm

STANAG 5066 unclassified

OFDM（正交频分复用）系统以其抗多径衰落和较高的频带利用率，得到了众多领域的广泛应用。本文就OFDM系统中关键技术之一的信道估计技术进行了介绍。并分别叙述了OFDM系统和信道估计的意义，归纳了信道估计的分类，最后介绍了MMSE、LS及其改进信道估计算法并仿真出结果。(OFDM（orthogonal frequency division multiplexing) has been widely used in many areas for its good resistance to multipath fading and high bandwidth efficiency.In this paper,channel estimation,which is one of the key technologies in OFDM systems,were introduced. Then we discuss the significance of the channel estimation and the classification of channel estimation.Finally,we study the algorithms of channel estimation such as MMSE,LS and LMMSE,and further get the simulation results. )

改进papr，对于改进papr的程序给了完整的代码，具有参考价值(Improved papr, for improving the procedures papr)

VUAMT-Hashin三维参数退化渐进损伤程序(VUAMT-hashin 3D for FRP analysis)

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)

汽车诊断协议 基于UDS的网络层源代码(Network Layer Source Code Based on UDS for Automobile Diagnosis Protocol)

说明：  VB6.0开发道闸控制程序，程序控制开闸、落闸(failed to translate)

its about gsm based appliance control drawn in DXP PROTEL

说明：  验证LTE同步中使用PSS主同步序列进行频偏估计与使用CP进行频偏估计的性能对比。(Verify the performance comparison of frequency offset estimation using PSS main synchronization sequence and frequency offset estimation using CP in LTE synchronization.)

average.m为平均功率对信道容量的影响 WaterFilling.m为注水算法对信道容量的影响 主程序为天线相关性对MIMO的影响模拟(average.m average power of channel capacity WaterFilling.m channel capacity for the water-filling algorithm main program for the impact of antenna correlation on MIMO simulation)