bpsk

说明：  SOCKET调试工具与压力测试小工具源代码 VS2008下测试通过，非常好用！(SOCKET debugging tools and stress testing tool for source code for VS2008 under a small test, very easy to use!)

标准接口1-5V转换成4-20mA程序，应用于标准传感器接入(Standard Interface 1-5V Converting 4-20mA Program for Standard Sensor Access)

IEEE TRANSACTIONS ON SIGNAL PROCESSING在定位与跟踪领域的经典文献“Source Localization Using TDOA and FDOA Measurements in the Presence of Receiver Location Errors: Analysis and Solution”的PDF文档，此文档的MATLAB程序同时上传，进行信号源被动定位与跟踪研究的同学可下载使用！(IEEE TRANSACTIONS ON SIGNAL PROCESSING positioning and tracking in the field of classical literature " Source Localization Using TDOA and FDOA Measurements in the Presence of Receiver Location Errors: Analysis and Solution" of the PDF document, this document also upload the MATLAB program, the source passive positioning and tracking of students can download!)

S60官方视屏播放器程序，可以装到手机上运行，但是在模拟器上运行会出问题。据说是因为视屏播放服务器的内核有问题，不能在模拟器上用。本人手机上测试成功。(S60 official video player program can be installed to run on mobile phones, but will run in the simulator problems. It is said that is because the screen play of the core server has problems, should not use the simulator. I test the success of mobile phones.)

说明：  2. 关于无线信道的多普勒谱，请回答以下问题： (1) 在某些无线信道中，多普勒频移会引起无线信道输出信号的混叠。请描述产生混叠的各种原因； (2) 无线信道中的多普勒谱有一种经典谱(classic spectrum)，请解释产生这种谱形状的机理； (3) 请用Simulink工具编写代码(S-Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。并请描述：自己用计算机产生的经典谱是正确的依据。(2. Regarding the doppler spectrum of the wireless channel, please answer the following questions: (1) in some wireless channels, doppler frequency shift will cause aliasing of the output signals of the wireless channel.Describe the various causes of aliasing; (2) there is a classic spectrum in the doppler spectrum in the wireless channel, please explain the mechanism of producing this spectrum shape; (3) please use Simulink tool to write code (s-function mode) to generate a single-path Rayleigh channel, whose doppler spectrum is the classical spectrum, in which the moving rate is 120km/h.And please describe: your own computer generated classical spectrum is the correct basis.)

说明：  半波天线增益及阻抗以及e面方向性图，h面方向性图，立体方向性图(Half-wave antenna gain and impedance, as well as e surface directional map, h surface directional map, a three-dimensional directional diagram)

说明：  基于matlab函数对模拟信号的调制，可以熟悉的掌握用matlab对模拟信号的调制、解调。(Matlab function-based modulation of the analog signal can be familiar with the master using matlab analog signal modulation, demodulation.)

实现了VB6下的通讯API的封装 实现了VB6下的通讯API的封装 实现了VB6下的通讯API的封装 实现了VB6下的通讯API的封装(实现了VB6下的通讯API的封装 实现了VB6下的通讯API的封装)

说明：  MATLAB实验，实现svm向量机，内含程序代码和数据(Matlab experiment, the realization of SVM vector machine, including program code and data)

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)