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In which analog-to-analog modulation methods does the peak amplitude of the carrier signal remain unchanged?
Frequency modulation and Phase modulation
When does Carrier Signal occur?
The carrier signal occurs at the beginning to transmit information.
What are the difference between carrier signal modulating signal modulated signal baseband and passband?
carrier signal- use for the purpose of conveying information. modulating signal- causes variations in some characteristics of carrier signal. modulated signal - carrier signal after altration in its characteristics is called modulated signal. example- if you want to see an object (suppose it is an modulating signal),you need light(light is carrier signal) and when light will reflect on object you will be able to see if (that is modulated signal)
Why carrier signal is always in analog signal?
It isn't always. Baseband analog signals have no carrier.
Is carrier signal present at output of double side band suppressed carrier?
No, the carrier signal is not present at the output of double side band suppressed carrier. That is what suppressed carrier means. However, the receiver has enough information to regenerate the carrier if need be. The advantage of suppressed carrier mode is that more power can be deployed to the signal-carrying portion of the modulated carrier.
Changing the wavelength of the carrier wave to match that of the signal is called?
Changing the wavelength of the carrier wave to match that of the signal is called modulation. This process allows the signal to be encoded onto the carrier wave for transmission and later decoded at the receiver to extract the original signal.
How receiver detect that which is information signal and which is carrier signal and how it separate both at destination?
carrier is constant frequency information is a change from that constant
Why is the intelligence signal not in the AM envelope?
The intelligence signal is in the AM envelope.In AM modulation, the carrier is amplitude modulated by the signal. This signal appears as the envelope of the carrier. You can demodulate it by following the peaks on each cycle of the carrier. You can either follow the positive peaks or the negative peaks - it does not matter if the original modulation is symmetrical.
What is difference between direct and indirect generation of FM wave?
Indirect FM generation first produces a narrow-band (relatively low bandwidth/frequency) FM wave, often created using an integrator, a signal multiplier, a phase shifter, and a summer. Then, it multiplies and mixes this wave's frequency properties to achieve the desired frequency deviation and carrier frequency.Direct FM generation uses a voltage-controlled oscillator (VCO) to generate the wide-band FM signal directly. The VCO often consists of an oscillator with a variable capacitance or inductance that allows the resonant frequency to vary with the applied voltage.Direct FM generation has poor frequency stability, so it requires feedback to stabilize this, which complicates the system. Indirect FM generation has good frequency stability, but is noisier since the noise is multiplied during the frequency multiplication.Choosing one over the other depends on what components are available and how the importance of system/signal characteristics is weighted.
What is the difference between SINR and CINR?
SINR - Signal to Interference and Noise Ratio CINR - Carrier to Interference and Noise Ratio difference between those to is difference between carrier and signal carrier is signal who doesn't "carry" any information . it must be modulated( by phase,freq or amplitude) and those changes convey information. carrier is unmodulated signal signal is defined as useful signal which carries information SINR is power of signal to power of interfenence and noise ratio
What cell phone carrier has the weakest signal?
The cell phone carrier that has the weakest signal varies by the market that you live in and even sometimes your location on your street. In the Utah area the carrier with the weakest signal is T-Mobile but that changes if you go to another area.
What converts analog signal information into an analog carrier signal?
Analog Modulation
