Carrier-phase synchronization can be approached in a general manner by estimating the multiplicative distortion (MD) to which a baseband received signal in an RF or coherent optical transmission system is subjected. This paper presents a unified modeling and estimation of the MD in finite-alphabet digital communication systems. A simple form of MD is the camer phase exp GO) which has to be estimated and compensated for in a coherent receiver. A more general case with fading must, however, allow for amplitude as well as phase variations of the MD. We assume a state-variable model for the MD and generally obtain a nonlinear estimation problem with additional randomly-varying system parameters such as received signal power, frequency offset, and Doppler Spread. An extended Kalman filter is then applied as a near-optimal solution to the adaptive MD and channel parameter estimation problem. Examples are given to show the use and some advantages of this scheme.
标签： synchronization Carrier-phase multiplicativ approached
上传时间： 2013-11-28
上传用户：windwolf2000
蠕虫mydoom.a版本的完整源代码，mydoom为internet上传播很广的蠕虫，以传播能力强而闻名于世，蠕虫为c语言编写，很有借鉴意义。-worm version of the complete source code, mydoom internet for a wide Spread of the worm to Spread the renowned
上传时间： 2013-12-12
上传用户：zhoujunzhen
Detecting Network Intrusions via Sampling_A Game Theoretic Approach Internet Quarantine_Requirements for Containing Self-Propagating Code Modeling Malware Spreading Dynamics Modeling the Spread of Active Worms
标签： Quarantine_Requireme Intrusions Sampling_A Detecting
上传时间： 2013-11-30
上传用户：xc216
CDMA 的仿真程序，Frequency Hopping Spread Spectrum,Random frequency hopps to form a Spread signal
上传时间： 2013-12-22
上传用户：nanshan
NanoStack is a 6lowpan IPv6 + IEEE 802.15.4 protocol stack, enabling wireless embedded and sensor networking. The goal is to help 6lowpan Spread globally and to encourage new features from the IETF and ISA100 to be implemented and tested.
标签： NanoStack enabling embedded protocol
上传时间： 2014-01-21
上传用户：牧羊人8920
The computing world has undergone a revolution since the publication of The C Programming Language in 1978. Big computers are much bigger, and personal computers have capabilities that rival mainframes of a decade ago. During this time, C has changed too, although only modestly, and it has Spread far beyond its origins as the language of the UNIX operating system
标签： Programming publication revolution The
上传时间： 2017-05-16
上传用户：thinode
注意：刚上传的不完整，以这个为准 （在DS-Spread spectrum系统中,噪声为加性高斯白噪声,传统单用户检测,线性解相关多用户检测和最小均方误差多用户检测的性能比较）
标签：
上传时间： 2017-05-24
上传用户：阳光少年2016
扩展频谱通信(Spread Spectrum Communication)简称扩频通信，是指待传输的信息的频谱用某个特定的扩频函数扩展后成为宽频带信号，送入信道中传输，再利用相应手段将其压缩，从而获取传输信息的通信系统，也就是说传输信息所用的带宽远大于信息本身带宽。
标签： 序列
上传时间： 2018-04-08
上传用户：如果云知道
扩展频谱通信(Spread Spectrum Communication)简称扩频通信，是指待传输的信息的频谱用某个特定的扩频函数扩展后成为宽频带信号，送入信道中传输，再利用相应手段将其压缩，从而获取传输信息的通信系统，也就是说传输信息所用的带宽远大于信息本身带宽。
标签： 扩频系统
上传时间： 2018-04-08
上传用户：如果云知道
Characterizing the dynamics underlying global Spread of epidemics
标签： Characterizing underlying epidemics dynamics global Spread the of
上传时间： 2019-04-18
上传用户：glstone
