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What is meant by a bandpass signal?

Anonymous

∙ 14y ago

Updated: 4/28/2022

Band pass refers to a specific range of frequencies requires for transmission of a signal over a appreciable distance for effective communication by applying special modulation techniques for effective transmission of a signal.

Wiki User

∙ 14y ago

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Q: What is meant by a bandpass signal?

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What is meant by a low pass signal?

A low pass signal whose bandwidth is much smaller than its center frequency, such as an AM signal. It is a a signal with its spectrum concentrated around zero frequency.

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.

How is fourier analysis used in digital communication?

The Fourier transform allows you to convert between time domain and frequency domain and back. Certain manipulations, such as filters, are easier to implement in the frequency domain, particularly when the representation is digital. You can also compress and shift the bandpass of a signal for easier transmission, and then convert it back at the receiving end.

What is meant by the term large signal amplifier?

power amplifiers are the amplifier which raise the power levels of the signal.the power amplifier may also defined as a device which converts dc power to ac power and whose action is controlled by the ac input signal. Power amplifiers are also known as "LARGE SIGNAL AMPLIFIER".the term large signal arises because they use large part of load line for their operation,but the small signal amplifiers are use only 10% load line for their operation.

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)

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Related Questions

What is bandpass signal?

A bandpass signal, xc(t), is a signal whose one-sided energy spectrum is both: 1) centered at a non-zero frequency, fC, and 2) does not extend in frequency to zero (DC). The two sided transmission bandwidth of a signal is typically denoted by BT Hertz so that the one-sided spectrum of the bandpass signal is zero except in [fC − BT /2,fC + BT /2]. This implies that a bandpass signal satisﬁes the following constraint: BT /2 < fC. Fig. 1.1 shows a typical bandpass spectrum. Since a bandpass signal, xc(t), is a physically realizable signal it is real valued and consequently the energy spectrum will always be symmetric around f = 0. The relative sizes of BT and fC are not important, only that the spectrum takes negligible values around DC. In telephone modem communications this region of negligible spectral values is only about 300Hz while in satellite communications it can be many Gigahertz.

What has the author Ljiljana Milic written?

Ljiljana Milic has written: 'Multirate filtering for digital signal processing' -- subject(s): Bandpass Electric filters, Computer simulation, Data processing, Digital techniques, Electric filters, Bandpass, MATLAB, Mathematics, Multiplexing, Signal processing

What has the author Maurice Rozenberg written?

Maurice Rozenberg has written: 'Constant high Q bandpass filters' -- subject(s): Bandpass Electric filters, Electric filters, Bandpass 'A digitally programmable filter' -- subject(s): Digital filters (Mathematics), Digital techniques, Signal processing

What is the difference between baseband and bandpass communication?

Base band signal is transmission of more than single frequency from zero hz to higher frequency components example : base band signal must be modulated to higher frequencies for radio transmission

What is meant by base band digital signal?

It means the signal is not modulated.

What is center frequency?

Center frequency refers to the frequency at the midpoint between the upper and lower limits of a bandpass filter or a communication channel. It is a critical parameter in signal processing, telecommunications, and radio frequency engineering as it represents the frequency around which most of the signal energy is concentrated.

What is meant by signal related to signals and systems?

signal is a physical quantity.the system which capable of analyzing the signal is the system.

What is a SSBSC signal?

Single Side Band Suppressed Carrier. This is a modification of AM (Amplitude Modulation) that both reduces required transmitter power and signal bandwidth. The carrier is first modulated by the signal the same as in ordinary AM, then is sent through a bandpass filter to remove one sideband and the carrier. To demodulate it and recover the original signal the receiver must reinsert the carrier using a BFO (Beat Frequency Oscillator) and Mixer.

Role of modulation in signal transmission is varying why?

The Role of modulation in signal transmission varies because of what type of signal should be modulated.Then how long it should be travel in air.All these points are considered, when we go before modulation.Suppose we are transmitting vedio signal means it should be only Amplitude Modulated signal.If we transmitting audio signal means it should be Frequency Modulated Signals.So the Role of the modulation is varies in signal transmission.

What is meant by amplifier?

An amplifier amplifies the small input signal to a high signal without changing its freqency.

Mixer circuit used in Amplitude demodulation?

The mixer circuit in a superhetrodyne receiver, used for both AM and FM receivers, is a local oscillator that is tuned to 455 KHz away from the desired signal (AM), or 10.7 MHz away from the signal (FM), followed by a broad band summing amplifier or, more typically, just a pair of diodes, resulting in shifting the RF signal into the IF range. By Fourier analysis, when you add two signals, you get four results, each signal, their sum, and their difference. The IF strip following the mixer, a steep skirt bandpass filter, is tuned to the difference, providing the selectivity necessary for good reception.The preceding RF stage is a semi broad band, partially tuned, bandpass tank/amplifier circuit that simply enhances the input signal, providing sensitivity instead of selectivity.

What is meant by signal?

A signal is defined as a the physical quantity that varies with time, space or any other indepenent variables.

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