Chapter 10

Estimation and Synchronization

So far in this book, we have considered two channel effects. Prior to Chapter 9, we considered channels adding a noisen(t) o the sent signal. In Chapter 9, we said the channel in fact added more than just a noise; it also acted as a filter with impulse response c(t). In this chapter, we again add to what channels do–we make them more realistic.

10.1 Introduction

In addition to noise and/or filtering, channels also add unwanted parameters to the sent signal. For example, take a look at Figure 10.1. There you see that the modulator sent the signal

image

Figure 10.1 Channel effects

(10.1)

which might, for ...

Get Telecommunications Demystified now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.