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Advantages and disadvantages of envelope detection compare to synchronous detection?
One of the Advantage of synchronous detection is that it causes less distortion when compared to envelope detection. Also synchronous works well with Single sideband signals.
Advantages and disadvantages of envelope detection amplitude modulation compare to synchronous am detection?
ADVANTAGES OF IDS
When low frequency signals added to high frequency signal then the envelope signal will follow which signal?
the low frequency signal which is nothing but the message signalNeither. The envelope will be that of the difference beat frequency. To get the envelope to follow the low frequency input signal you need to mix (multiply) the two signals, not add them.
Why the output of the envelope detector changed frequency when the audio frequency was varied?
answer for me please
What are the different types of distortions that occur in an envelop detector?
The main types of distortions that can occur in an envelope detector include amplitude distortion, phase distortion, and frequency distortion. These distortions can affect the accuracy of the envelope detection process and result in errors in recovering the original signal. Techniques such as filtering and adjusting the envelope detector circuit parameters can help reduce these distortions.
Disadvantages of DSB-SC modulation?
-Carrier not available in receiver -Envelope detection not possible
What is meant by Repetition rate of an AM envelope?
Repetition rate of an AM envelope refers to the frequency of the modulating signal thus the shape of the envelope is identical to the shape of the modulating signal.
What is c4fm?
The C4FM is the Constant Envelope 4-Level Frequency Modulation.
What is the envelope of a signal?
The envelope of a signal is the "apparent" signal seen by tracking successive peak values and pretending that they are connected. Normally, this question involves amplitude modulation of a radio frequency carrier by an audio frequency signal. The two frequencies involved are very much different - 20 kHz versus 1 mHz, for instance, and this "envelope" effect will be very noticable on an oscilloscope.
What does Viral envelope closely resembles?
A viral envelope closely resembles the host cell membrane from which it originates. The envelope is typically derived from the host cell during the viral replication cycle and is composed of host cell lipids and proteins. This resemblance helps the virus evade detection by the host immune system.
Why amplitude modulation is called as collector modulation?
amplitude modulation using collector modulator gives:More symmetrical envelope• Higher power efficiency• Higher output power• Need higher amplitude modulatingsignal
What is coherent and non coherent detection reception?
1AnswerA coherent detector uses the knowledge of the phase of the carrier wave to demoduleate the signal.it's simply a product device , which multiply the AM signal by a sinusoidal signal having the same carrier frequency , followed by a low pass filter ( LPF). The product will shift the AM signal to 0 Hz and double carrier frequency , and the LPF will eliminate the later component.2ANSWER:Coherent detectioninCoherent detectionrequires carrier phase recovery at the receiver and hence, circuits to perform phase estimation.Sources of carrier-phase mismatch at the receiver:inPropagationtalking causes carrier-phase offset in the received signal.inThe oscillators at the receiver which generate the carrier signal, are not usually phased locked to the transmitted carrier.coherent detection: Huge need for a reference in phase with the received carrierinLess complexity compared to incoherent detection at the price of higher error rate.Coherent ( synchronous ) detection: in coherent detection , the local carrier generated at the receiver in phase locked with the carrier at transmitter .Non coherent ( envelope ) detection : this type of detection does not need receiver carrier to be phase locked with transmitter carrier
