混沌单用户csk调制仿真程序，计算了混沌调制的误码率性能

现有数字信号自动调制识别方法大多只适用于无记忆信号，如PSK、ASK、FSK信号等。将有记忆 信号(MSK信号)和无记忆信号一起考虑，提出了一种改进的数字信号自动识别方法。该方法采用信号的瞬时统 计量作为特征参数，采用多层神经网络作为分类器。计算机仿真表明：当噪声采用高斯白噪声，并且信噪比大于 l5 dB时，识别率高于96％ ；当信噪比不低于l0 dB时，识别率不低于90％。-Existing digital signal automatic modulation recognition methods are mostly applied only to memoryless signals, such as PSK, ASK, FSK signals. Will have a memory signal (MSK signal) and non-memory signal into consideration, an improved digital signal automatic identification method. This method is the use of the instantaneous signal statistics as a characteristic parameter, the use of multi-layer neural network as classifier. Computer simulation shows that: When the noise using Gaussian white noise, and signal to noise ratio greater than l5 dB, the recognition rate is higher than 96 when the signal to noise ratio not less than l0 dB, the recognition rate of not less than 90.

SIP体系架构讲义及消息交互演示 -SIP architecture lectures and interactive demonstrations news SIP architecture lectures and information WALLDISPLAY

windows mobile读取GPS数据，带有测试程序，非常实用的东东 -windows mobile to read GPS data, with testing procedures, very practical Dongdong

基于模糊逻辑控制的数字锁相环，用于通信系统中的载波恢复。Digital phase lock loop base on fuzzy logical control, which is used to recover carrier in communication system.-Based on fuzzy logic control of digital phase-locked loop for the communication system in carrier recovery. Digital phase lock loop base on fuzzy logical control, which is used to recover carrier in communication system.

QAM调制的基本原理 QAM调制实际上是幅度调制和相位调制的组合。相位 + 幅度状态定义了一个数字或数 字的组合。QAM的优点是具有更大的符号率，从而可获得更高的系统效率。通常由符号率 确定占用带宽。因此每个符号的比特（基本信息单位）越多，效率就越高。-QAM modulation of the basic principles are in fact QAM modulation amplitude modulation and phase modulation of the portfolio. Phase+ margin status defines a combination of numbers or figures. The advantage of QAM symbols are greater rate, thus the system efficiency will be higher. Symbol rate is usually determined by the occupied bandwidth. Thus each bit symbols (basic units of information) the more the higher the efficiency.

UIT - Secteur de la normalisation des télécommunications ITU - Telecommunication Standardization Sector UIT - Sector de Normalización de las Telecomunicaciones Study Period 1997-2000 Commission d études Study Group Comisión de Estudio 16 Contribution tardive Delayed Contribution Contribución tardía D.xxx Geneva, 7-18 February 2000 Texte disponible seulement en Text available only in Texto disponible solamente en E Question(s): Q.15/SG16 SOURCE*: Nokia Inc. / Nokia Research Center 6000 Connection Drive Irving, Texas 75039 USA Tel : +12147976155 Fax : +19728944589 e-mail : marta.karczewicz@nokia.com TITLE: MVC Decoder Description -UIT- Secteur de la normalisation des télécommunicationsITU- Telecommunication Standardization SectorUIT- Sector de Normalización de las TelecomunicacionesStudy Period 1997-2000Commission d études Study Group Comisión de Estudio 16 Contribution tardive Delayed Contribution Contribución tar

PCM的好文档 PCM的好文档-PCM good document PCM good documentation of good documentation PCM

zigbee网络中cskip算法的原理和VC++的实现代码-zigbee network cskip algorithm principle and the realization of VC++ code

name=CustomInputBox ver=v1.0 author=ccrun devtool=C++Builder fullsource=1 desc=通过自定义消息的方法来实现自定义输入框-name CustomInputBox ver = = = v1.0 author cc run devtool = C = Builder fullsource desc = 1 through self- justice information and means to achieve self-definition input box

改写ENS的软件的资料！真的很有用的呀~！针对CDMA的电话都可以的~！-rewritten ENS software information! Really very useful ah ~! Against CDMA phone can be ~!