Define binary fsk signal

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See our Privacy Policy and User Agreement for signal Published on Signal 6, Digital communication viva questions MCQ of digital communication communication systems MCQ communication systems viva questions covered topic list: sampling,quantization,digital,discrete,AM,FM,PM,ASK,FSK,PSK,DM,DPCM,QPSK,ADM,differences,modulation,block diagram,applications,PAM,PWM,PPM,line encoding,polar encoding,bipolar encoding,unipolar encoding,RZ,NRZ,AMI,HDB3,B8ZS Clipping is a handy way to collect and organize the most important slides from a presentation.

You can keep your great finds in clipboards organized define topics Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Modulation is the addition of information or the signal to an electronic or optical signal carrier. Modulation can be applied to direct current mainly by turning it on and offto alternating current, and to optical signals.

Magnetic tape storage FM synthesis Signal FM signal can also be used to carry a stereo signal. A type of modulation in which binary are varied in some respect, such as width or amplitude PAM. Ans pulse amplitude modulation. For FM the frequency deviation maximum instantaneous difference between an FM modulated frequency and the nominal carrier frequency.

For PM the define deviation is independent of frequency and the frequency deviation increases with increasing frequency.

Ans All are digital modulation schemes. ASK refers to a type of amplitude modulation that assigns bit values to discrete amplitude levels FSK refers to a type of frequency modulation that assigns bit values to discrete frequency levels. ANS Frequency modulation signal other is amplitude … Fsk less susceptible to errors while ask is more Fsk fsk is 2 x Ask spectrum. Ans Pre-emphasis: Pre-emphasis refers to boosting the relative amplitudes of binary modulating voltage for higher audio frequencies from 2 to approximately 15 KHz.

De-emphasis: De-emphasis means attenuating those frequencies by the amount by which they are boosted. However pre-emphasis is done at the transmitter define the de-emphasis is done in the receiver. Ans In its simplest form, the presence of a carrier for a specific duration represents a binary one, while its absence for the fsk duration represents a binary zero.

Ans Binary frequency synthesizer is an electronic system define generating any of fsk range fsk frequencies from a single fixed timebase or oscillator. Binary are found in many modern devices, including radio receivers, mobile telephones, radiotelephones, walkie-talkies, CB radios, satellite receivers, GPS systems, etc.

Polar line encoding is also called None Return To Zero NRZ. Ans Unipolar encoding is a line code. Each bit is transmitted in define fixed time the "period".

A 0 is expressed by a low-to-high transition, a 1 by high-to-low transition Differentiate between RZ,NRZ,NRZI,AMI binary Automatic Repeat reQuest ARQalso known as Automatic Repeat Query, is an error-control method for data transmission that uses acknowledgements and timeouts to achieve reliable data transmission over an unreliable service. The central idea is the sender encodes his message in a redundant way binary using an error-correcting code ECC. Hybrid automatic repeat request hybrid ARQ or HARQ is a combination of high-rate forward error-correcting coding and ARQ error-control.

Ans sampling is signal reduction of a continuous signal to a discrete signal. The easiest way to prevent aliasing is the application of a steep sloped low-pass filter with half the sampling frequency before the conversion. Sampling is done first so that each sample can be represented by n digits corressponding to 2n levels of quantization.

HDTV p or i interlaced video aspect ratio. Aperture effect can be corrected by connecting an equalizer in cascade with the low pass reconstruction filter what is pulse stuffing? Process of adjusting bit define to make them equal involves adding bits to signal slower define stream in an operation. And 2B is called the Nyquist rate for function with bandwidth Binary. Nyquist interval: The maximum time interval between equally spaced samples of a signal that will enable the signal waveform to be completely determined.

An A-law algorithm is a standard companding algorithm, used fsk European 8-bit PCM digital communications systems to binary, i. The reason PM is better is because in PM fsk FM there can be non-zero energy produced at 0 Hz, which in FM will produce a shift in pitch if the FM wave is used again as a modulator, however in PM the DC component will only produce fsk phase shift Difference in digital and signal signals?

After sampling the discrete signal has to be rounded to its nearer digital value. You can keep your great finds in clipboards organized around topics Start clipping No thanks. Clipping is a handy way to collect important slides you want to go back to fsk.