Titlebook: Digital Communication; Edward A. Lee,David G. Messerschmitt Book 19942nd edition Kluwer Academic Publishers 1994 Modulation.Phase.analog.c

Psychogenic

Deterministic Signal Processingil several specific topics that some readers may not be familiar with, including complex signals and systems, the convergence of bilateral Z-transforms, and signal space geometry. The latter allows simple geometric interpretation of many signal processing operations, and demonstrates relationships a

Metamorphosis

Stochastic Signal Processingd in the physical transmission 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.

puzzle

Limits of Communicationt 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

精致

Physical Media and Channelsnication system that we cannot change. Some channels are simply a physical medium, such as a wire pair or optical fiber. On the other hand, the radio channel is part of the electromagnetic spectrum, which is divided by government regulatory bodies into bandlimited radio channels that occupy disjoint