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  1. 编程语言:所有
  2. 代码类别:通讯编程文档
  3. 发布时间:一周内
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1. Coded_Orthogonal_Signaling(1993)

  正交编码方面的文章Coded Orthogonal Signaling(1993)(Coded Orthogonal Signaling(1993))

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2010-05-29发布

3. 4

说明:  :载波频率偏移是OFDM系统实现的关键问题之一。分析了OFDM 系统载频偏移估计的2 种算法,即利用循环前缀和训练序列方法。它们均为最大似然估计方法。分别讨论了它们的基本 思想、实现方法和仿真结果。可以看出基于循环前缀算法复杂度较小,精度不高,而基于训练序列 的算法有较高的估计精度,但降纸了系统传输效率。(Abstract:Carrier frequency ofset is one of the key problems in OFDM system.Two foundational methods 。cycling prefix—based and training sequence—based algorithms。to estimate OFDM carriers~equency ofset are analyzed.Then it discusses their basic thoughts。implementing methods and simulation resuits. Finally。merits and demerits of every algorithm are supposed.It concludes that the cycling prefix— based algorithm has less complexity and less precision。and that the training sequence—based algorithm has better estimation performance at the cost of transmission efficiency.)

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171
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2010-05-18发布

4. draft-ietf-mpls-oam-frmwk-05

  mpls tp oam frame work from ietf. very usefull

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203
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2010-05-17发布

5. CHENGXU

说明:  实现图像游程编码的MATLAB程序,对二值图像压缩效果明显。(RLC)

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2010-05-01发布

6. lijing

说明:  基于Simulink的DPSK的通信系统仿真 Simulink 是MATLAB提供的实现动态系统建模和仿真的一个软件包,它让用户把精力从编程转向模型的构造,为用户省去了许多重复的代码编写工作;Simulink 的每个模块对用户而言都是透明的,用户只须知道模块的输入、输出以及模块的功能,而不必管模块内部是怎么实现的,于是留给用户的事情就是如何利用这些模块来建立模型以完成自己的仿真任务;至于Simulink 的各个模块在运行时是如何执行,时间是如何采样,事件是如何驱动等细节性问题,用户可以不去关心,正是由于Simulink 具有这些特点,所以它被广泛的应用在通信仿真中,利用Simulink 强大的工具箱和其建模的优势建立了常用的DPCM数字电话通信系统仿真模型,对该通信系统进行了模型构建、系统设计、仿真演示、结果显示以及综合性能分析,而且该分析方法同样可推广到其它的通信系统,具有普遍意义。(Simulink-based simulation of Simulink DPSK communication system is provided by MATLAB dynamic system modeling and simulation of a software package that allows users to shift attention from the programming model of the structure, the user save a lot of repetitive coding work Simulink Each module is transparent to the user, the user need only know the module s input, output and functional modules, rather than how the realization of the internal control module, and then left to the user to do is how to use these modules to build model to fulfill its a simulation tasks as Simulink s Ge Ge module at run time how Zhi Xing, Shi Jian yes how to sample, events are the details of how to drive and so on Xing problem, users can not care, Zheng Shi as Simulink those characteristics, so Ta is widely used in communication simulation, using Simulink toolbox and its powerful modeling advantage of the establishment of a common DPCM Digital telephone communication system simulation model, the communica)

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2010-04-24发布

7. Frequencyconversion

说明:  变频器使用手册 MM440使用手册 西门子通用变频器应用实例手册(Inverter Manual Manual Siemens MM440 Inverter Application Manual Universal)

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255
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2010-04-09发布

8. Solving

说明:  求解双层规划问题常用的算法有极点算法、直接搜索法、下降法和非数值优化方法(如模拟退火算法、遗传算法等),遗传算法的求解思路是:首先对上层的决策变量编码,代人下层规划模型,通过求解下层模型的决策变量值,代入上层模型计算适应度值,然后进行交叉、变异、选择操作,最后求出最优解。(Solving Bilevel Programming Problems with pole algorithm commonly used algorithms, direct search method, descent and non-numerical optimization methods (such as simulated annealing, genetic algorithms, etc.), genetic algorithm for solving approaches: the first on the top of the decision variable coding, on behalf of the were lower programming model, by solving the lower model of decision variables values into the upper model on behalf of the fitness value, and then crossover and mutation, select Options, and finally get the best solution.)

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213
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2010-04-07发布

9. RS485

说明:  阐述了RS-485总线规范,描述了影响RS-485总线通信速率和通信可靠性的三个因素,同时提出 了相应的解决方法并讨论了总线负载能力和传输距离之间的具体关系。 (Described the RS-485 bus specification, describes the impact of RS-485 bus communication speed and communication reliability of the three factors, while the corresponding solutions presented and discussed the bus load capacity and the specific relationship between the transmission distance.)

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189
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2010-04-04发布

10. del83145235244

说明:  服务通讯程序,采用服务+客户端模式,有源代码可以自己修改研究(Services, communication procedures, using service+ client mode, the active code can modify their own research)

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193
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2010-03-29发布

11. chengxu

说明:  小区同频干扰源码。建立基站、设置功率传输比...很有用的。(co-channel interference in matlab. Include establishing stations and power transmission ratio.)

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197
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2010-03-29发布

12. YouToo

说明:  sip开发相关资料集,为sip开发人员提供了很丰富的资料,适合初学者.

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260
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2010-03-23发布

13. gmsk

说明:  :为了论证高斯最小频移键控(GMSK)信号在时域和频域的相互关系,分析了GMSK信 号调制原理和滤波器传递函数,建立了GMSK调制和解调模型。(: In order to demonstrate Gaussian Minimum Shift Keying (GMSK) signal in time domain and frequency domain, the relationship between the analysis of GMSK signal modulation principle and the filter transfer function established model for GMSK modulation and demodulation.)

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187
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2010-03-16发布

14. TCPIP-3

  TCPIP协议详解卷三:事务TCPIP协议详解卷三:事务TCPIP协议详解卷三:事务(TCPIP protocol Xiangjie Makizo: Services TCPIP protocol Xiangjie Makizo: Services TCPIP protocol Xiangjie Makizo: Services)

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2010-03-13发布

15. 17869356wendu

  有关CC2430的文档,里面的东西很实用,希望对你有帮助(The CC2430 document, which is very useful stuff, want to help you)

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186
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2010-03-10发布

16. WSN-matlab-simulation

  This is wireless sensor network simulation source

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2010-03-08发布

17. gprs

  介绍常用的AT指令,包括gpsr初始化,发短信等(Commonly used in the AT commands, including the gpsr initialization, send text messages, etc.)

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189
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2010-03-03发布

18. HX8368-A_AN_v01_090727

  最新发布的 lcdic hx8368 用于手机屏幕的控制芯片(The latest release of lcdic hx8368 screen controller chip for mobile phones)

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190
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2010-03-03发布

19. colea444

  This includes how to protect the speaker using matlab functions.

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2010-03-03发布

20. ccc

  随机过程仿真必备,伪随机序列的Matlab实现与分析.kdh(Stochastic process simulation necessary, pseudo-random sequence of Matlab Implementation and Analysis. Kdh)

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2010-02-18发布