Semester:
IV
Subject:
Communication Systems
Name:
Reet
Shinde
Class:
Roll No: PA-33
Batch:
Al1
Experiment
No:
03
Name
of
the
Experiment:
Generation, detection
and
spectral analysis
of
SSB.
Performed
on:
24/02/2023
Marks
Teacher's
Signature
with
date
Submitted
on:
04/03/2023
Aim:
To study Single Side Band
(SSB)
modulation using Phase Shift method
and
its
detection.
Prerequisite:
Analog
Modulation, Time and Frequency domain representation
Objectives:
To
generate
SSB
Suppressed
Carrier
(SSB-SC)
modulated
signal
To
observe
the time
and
frequency
domain
waveforms
and
calculate its bandwidth
To
detect the
SSB-SC
signal
and observe the
recovered
signal.
Components
and
Equipment
required:
SSB
Modem,
CRO/DSO,
Spectrum
Analyser,
Connecting wires and probes.
Theory:
Single
side
band
suppressed
carrier
(SSB-SC)
Modulation
In amplitude modulation, two-thirds
of
the transmitted
power
is in the carrier, which
itself
conveys
no
information.
The
real information is
contained
within
the sidebands.
One
way
to
improve the efficiency
of
amplitude modulation
is
to suppress the
carier
and eliminate one
sideband.
The
result is a single-sideband
(SSB)
signal.
The
first step in
generating
an SSB signal
is
to
suppress
the carrier, leaving the
upper
and
lower
sidebands. In
DSB
transmission,
since
the
sidebands are the sum and difference
of
the carrier and modulating signals, the information
is
Expt.
3-1
www.mitwpu.edu.in
