Q3. A baseband pulse position modulation (PPM) system uses signals s1(t) and s2(?) shown below to represent bits 1 and 0, respectively. Find two orthonormal basis functions for these waveforms and write s (t) and s2(t) in terms of them. Sketch the signal space diagram of the transmitted signals and suggest a correlation type receiver to extract the data symbols in AWGN channel. Assume that T, represents the bit interval, A is the signal amplitude, and E, is the signal energy per bit. (1) T,/2 T

Q3. A baseband pulse position modulation (PPM) system uses signals s1(t) and s2(?) shown below to represent bits 1 and 0, respectively. Find two orthonormal basis functions for these waveforms and write s (t) and s2(t) in terms of them. Sketch the signal space diagram of the transmitted signals and suggest a correlation type receiver to extract the data symbols in AWGN channel. Assume that T, represents the bit interval, A is the signal amplitude, and E, is the signal energy per bit. (1) T,/2 T

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Concept explainers

Amplitude modulation

A radio signal can carry information in the form of sound or image for broadcasting or communication. For it to be sent to a greater distance, the signal must be changed or modulated in some way. One of the easiest way is to change the amplitude of the signal with variations of the video or the audio signal. This is called Amplitude Modulaton. In this modulation information of message is carried in amplitude of carrier signal.

Question

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Q3. A baseband pulse position modulation (PPM) system uses signals s1(t) and s2(?) shown
below to represent bits 1 and 0, respectively. Find two orthonormal basis functions for these
waveforms and write s (t) and s2(t) in terms of them. Sketch the signal space diagram of the
transmitted signals and suggest a correlation type receiver to extract the data symbols in
AWGN channel. Assume that T, represents the bit interval, A is the signal amplitude, and E,
is the signal energy per bit.
(1)
T/2
T12
T

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