0
Case 1 -Frequency error
Multiplier
Multiplier
Low passfilter
Low passfilter Message signal
DSB-S
C
Local oscillator
c
(
t
)=
E
c
cos(
[
c
t+
([
)
Local oscillator
c
(
t
)=
E
c
cos(
[
c
t+
([
)
Condition:
Local oscillator has the same
phase
but
different
frequency
compared to carrier signal at thetransmitter.
[
m
2
[
c
+
[
m
2
[
c
-
[
m
Low pass filter
high frequencyinformation
)(cos]cos)([)(
[([[
t t t mt
y
cc
)2(cos)(cos)()(cos)()2(cos)()(
21212121
[(
[
[(
!
[(
[(
[
!
t t t t t t t
y
cc
[(
!
cos)()(
21
t t v
What else can I help you with?
What is the bandwidth of DSBSC?
BW=2 fm
Draw the waveform of AM signal and DSBSC signal?
Draw thewaveform of AM signal and DSBSV
What feature of the multiplier modules output suggests that is basically a DSBSC signal?
The feature of the multiplier module's output that suggests it is essentially a Double Sideband Suppressed Carrier (DSBSC) signal is the absence of a carrier frequency component in the output spectrum. In DSBSC modulation, the carrier wave is suppressed, and the output consists of two sidebands that carry the modulating information. This characteristic can be identified by analyzing the frequency domain representation, where only the upper and lower sidebands are present without the carrier frequency peak.
Explain why interrupts are not appropriate for implementing synchronization?
Because they are completely unrelated things? Synchronization can be implemented with semaphores or mutexes.
How do the lights react of an alternator synchronization experiment?
In an alternator synchronization experiment, the lights typically flicker or dim momentarily as the alternators are brought into phase with each other. Once synchronized, the lights stabilize and glow steadily, indicating that the voltage, frequency, and phase of the alternators are aligned. If the alternators are not in phase, the lights may show erratic behavior or flickering until synchronization is achieved. This visual feedback helps operators confirm successful synchronization.
Synchronization in operating system?
Synchronization in an operating system refers to the coordination of the events in order to operate a given operating system.
What do you mean by synchronization in operating system?
synchronization mean arrange all process in sequence for that not occured no colusion in the system.
What is internal synchronization in distributed system?
Internal synchronization in a distributed system refers to the mechanism through which processes or nodes coordinate their actions to ensure consistency and order in the system. This can involve using techniques like mutual exclusion, barriers, or message ordering to manage concurrent access to shared resources and maintain data integrity across the distributed environment. Internal synchronization helps prevent race conditions and ensures that operations are carried out in a predictable and controlled manner.
What is the bandwidth of DSBSC?
BW=2 fm
What has the author Umberto Mengali written?
Umberto Mengali has written: 'Synchronization techniques for digital receivers' -- subject(s): Digital communications, Equipment and supplies, Synchronization, Timing circuits, Design and construction
Draw the waveform of AM signal and DSBSC signal?
Draw thewaveform of AM signal and DSBSV
What is interprocess synchronization?
Processes might need to communicate to each. Interprocess of synchronization is the?æ management of resource among process. It ensures only a single thread (process) access a resource at a particular time.
Which type of system attack sends a flood of TCP synchronization requests to a host?
SYN flood
What type of system attack sends a flood of TCP synchronization requests to a host?
SYN flood
What is carrier synchronization?
Carrier synchronization is a process used in communication systems to ensure that the transmitter and receiver operate at the same frequency and phase. It is crucial for the accurate demodulation of signals, particularly in systems that use modulated carriers, such as in radio and digital communications. Effective carrier synchronization minimizes errors and improves the quality of the received signal by aligning the timing of the received signal with the local oscillator at the receiver. Techniques such as phase-locked loops (PLLs) are commonly employed to achieve this synchronization.
What feature of the multiplier modules output suggests that is basically a DSBSC signal?
The feature of the multiplier module's output that suggests it is essentially a Double Sideband Suppressed Carrier (DSBSC) signal is the absence of a carrier frequency component in the output spectrum. In DSBSC modulation, the carrier wave is suppressed, and the output consists of two sidebands that carry the modulating information. This characteristic can be identified by analyzing the frequency domain representation, where only the upper and lower sidebands are present without the carrier frequency peak.
What is multiprocessor synchronization?
Multiprocessor synchronization refers to the coordination of processes or threads running on multiple processors to ensure they operate correctly and efficiently without conflicts. It addresses issues like race conditions, where multiple processes access shared resources concurrently, potentially leading to inconsistent data. Techniques for achieving synchronization include locks, semaphores, and barriers, which help manage access to shared resources and maintain data integrity. Effective synchronization is crucial for optimizing performance and ensuring the reliability of multiprocessor systems.
