Titlebook: Digital Communication; John R. Barry,Edward A. Lee,David G. Messerschmitt Textbook 2004Latest edition Kluwer Academic Publishers 2004 Ethe

Dissonance

https://doi.org/10.1007/978-3-319-25724-2An information-bearing signal must conform to the limitations of its channel. While the bit streams we wish to transmit are inherently discrete-time, all physical media are continuous-time in nature. Hence, we need to represent the bit stream as a continuous-time signal for transmission, a process called .

鬼魂

GNAW

Estimable

令人發(fā)膩

unstable-angina

Timing Recovery,The purpose of timing recovery is to recover a clock at the symbol rate or a multiple of the symbol rate from the modulated waveform. This clock is required to convert the continuous-time received signal into a discrete-time sequence of data symbols

紡織品

沉著

小鹿

Stochastic Signal Processing,on medium, is random or stochastic. These phenomena cannot be predicted in advance, but they have certain predictable characteristics which can be summarized in a random process model. The design of a digital communication system heavily exploits these characteristics

enmesh

Limits of Communication,t communication, and stimulated considerable intellectual activity, both practical and theoretical. This theory, among other things, gives us some fundamental boundaries within which communication can take place. Often we can gain considerable insight by comparing the performance of a digital commun