# What is the meaning of DFT?

What is the meaning of DFT?

## Related questions

Description : What is the difference between DFT and FFT?

Description : What is the use of DFT in DSP?

Description : Consider the following statements with respect to Discrete Fourier Transform (DFT) : 1. It is obtained by performing a sampling operation in the time domain. 2. It transforms a finite duration sequence into a discrete frequency spectrum. 3 ... (a) 1 and 2 only (b) 2 and 3 only (c) 1 only (d) 3 only

Answer : Consider the following statements with respect to Discrete Fourier Transform (DFT) : 1. It is obtained by performing a sampling operation in the time domain. 2. It transforms a finite duration sequence into a discrete frequency spectrum. ... (a) 1 and 2 only (b) 2 and 3 only (c) 1 only (d) 3 only

Description : Speed of improvement of computation of 64 point DFT by using FFT compared to direct computation is about  A) 4 B) 8 C) 16 D) 20

Description : What is the use of Fast Fourier Transform?

Description : What is the use of Z transform?

Description : What is the use of digital signal processing?

Description : What are the advantages of a digital signal?

Answer : It  has   only   two  variable   input  and  output (low   or    high)   (0  or    5).

Description : What are digital signals used for?

Description : A unit ramp function when integrated yields: A) unit parabolic function B) unit ramp function C) unit doublet D) unit impulse function

Answer : A unit ramp function on integration yields a unit parabolic function

Description : The spectrum of discrete-time Fourier transform will be:  a. Periodic and discrete b. Aperiodic and continuous c. Periodic and continuous d. Aperiodic and discrete

Answer : The spectrum of discrete-time Fourier transform will be: Periodic and continuous

Description : On different unit impulse function results in   (A) Unit parabolic function (B) Unit triplet (C) Unit doublet (D) Unit ramp function

Answer : On different unit impulse function results in Unit doublet

Description : A system is causal if the output of any time depends only on   (A) Values of input in the past and in the future (B) Values of input at that time and in the past (C) Values of input at that time and in the future (D) none

Answer : A system is causal if the output of any time depends only on Values of input at that time and in the past

Description : The Match Filter  (A) is a high-pass filter  (B) is a low-pass filter  (C) is an optimum system for detecting known signal in the presence of Gaussian noise  (D) is a system to detect arbitrary signal in the presence of noise

Answer : The Match Filter is an optimum system for detecting known signal in the presence of Gaussian noise

Description : For a discrete time filter to be causal and to have exact linear phase (A) Its impulse response must be of infinite length (B) Its impulse response can be of any length (C) The signal should be left sided (D) Its impulse response must be of finite length

Answer : For a discrete time filter to be causal and to have exact linear phase Its impulse response must be of finite length

Description : Integration of step signal gives (A) Impulse signal. (B) Ramp function. (C) Parabola. (D) Square pulse.

Answer : Integration of step signal gives Ramp function.

Description : The Fourier Transform of a discrete and aperiodic signal is: A) Continuous and aperiodic B) Continuous and periodic C) Discrete and aperiodic D) Discrete and periodic

Description : The signal x(t) = sin(t)/t is  A) Even function B) Odd function C) Neither odd nor even D) Both odd and even

Description : The FS of a periodic continuous-time signal x(t) is  A) Continuous Complex-valued function B) Discrete Real-valued function C) Continuous Real-valued function D) Discrete Complex-valued function

Description : Can you convert analog signal to digital?

Description : How does signal processing work?

Description : Why digital signal processing is important?

Description : 7.24 Consider the finite-duration signal x(n) = {1,2,3,1} (a) Compute its four point DFT by solving explicitly the 4-by-4 system of linear equations defined by the inverse DFT formula. (b) Check the answer in part (a) by computing the four-point DFT, using its defination.

Answer : Handwritten Solution for Problem Number 7.24 from Digital Signal Processing 4th edition By John G. Proakis

Description : Linear Time Invariant (LTI) System

Answer : Linear Time Invariant System Linear system means a system which possesses the property of superposition. Time invariant system means its behavior and characteristics are fixed over time. Before ... from the impulse response. Impulse response is related to frequency response via Fourier transform.

Description : Sampling of Analogue Signals

Answer : Sampling of Analogue Signals Sampling means splitting in regular interval to convert it in digital form. Sampling converts continuous signal to discrete signal. Actually the accuracy ... use. Using sampling we can store the analogue data in digital form.

Description : What is the meaning of life?

Description : What’s your favorite holiday tradition? What meaning does it have for you?

Description : What is the meaning for greedy local search?

Answer :  It goals (picks) a good neighbor state without thinking ahead about where to go next.

Description : What is the process by which individuals organize and interpret their sensory impressions in order to give meaning to their environment? (a) Interpretation ; (b) environmental analysis ; (c) Outlook ; (d) Perception

Description : What is redundancy in messages? (a) Information that recipient has already receive (b) Extra information to persuade the receiver to accept and act upon the message (c) Parts of the message that have no meaning and could be eliminated (d) Message that have no purpose and need not be retained

Description : What mechanical and electronic device has a name derived from a Czechoslovakian word meaning "work; compulsory service"?

Description : Many elements are Greek or Latin names for a particular color, examples are Chlorine from chloros (greenish-yellow) and Cesium from caesius (sky blue). What is the element that was named from the Greek word meaning color?

Description : What is the literal meaning of the word "chromatography"?

Description : Shaquille O’ Neal is a 60% career free throw shooter, meaning that he successfully makes 60 free throws out of 100 attempts on average. What is the probability that he will successfully make exactly 6 free throws in 10 attempts? (A) 0.2508 (B) 0.2816 (C) 0.2934 (D) 0.6000

Answer : Correct option is (A).

Description : What is the original literal meaning of the word bride

Answer : To cook (ancient tutonic)

Description : What is network topology? List their types with meaning.

Answer : The topology of a network is the geometric representation of the relationship of all the links and linking devices (usually called nodes) to one another. List: 1. Mesh topology 2. Bus topology ... 6. Hybrid Topology: a combination of two or more different topologies makes for a hybrid topology.

Answer : EEE is the branch of Engineering.EEE is the study of Electrical and Electronic Engineering in which we get knowledge of both electrical and electronics components.

Description : What is the meaning of Arduino?

Description : What is the meaning of LTI system?

Answer : The system which satisfies both linearity and time invarient is called linear time invarient (LTI) systrm

Description : What is the meaning of electrical materials?

Description : What is the meaning of reference node?

Description : What is the meaning of Electronics and Communication Engineering?

Description : What is the meaning of computer system organization?

Description : What is the meaning of computer organization?

Description : What is the meaning of operational amplifier?

Description : What is the meaning of the word hydroelectric power?

Answer : Hydro means water, hydroelectric mean electricity generated from water.

Description : What is the meaning of RMS value?

Answer : RMS value means root mean square value. It is 0.707 times peak value of voltage or current. The ammeter and voltmeter records this rms value. RMS value for sine wave is more than average value. RMS ... same amount of heat as produce by AC when AC is flowing through the same resistance for same time.

Description : Explain the meaning of Taxation with objectives.

Answer : Taxation: Taxes in India are levied by the Central Government and the state governments. Some minor taxes are also levied by the local authorities such as the Municipality. A Tax is nothing but ... unemployment. 4. Reduction in regional disparities. 5. Distributional justice to all the people.

Description : Write the Emf equation of transformer. State the meaning of each term in it.

Answer : EMF equation of Transformer:- E1 = 4.44 f ØmN1 OR E1 = 4.44 f BmAN1 E2 = 4.44 f ØmN2 OR E2 = 4.44 f Bm AN2 Let, E1 = Primary emf E2 = Secondary emf N1= Number of turns in the primary N2 ... flux in core (wb) Bm= Flux density (wb/m2 /Tesla) A= Area of cross section of core m2 F = Frequency

Description : List any four methods of plotting a compass traverse survey & explain any one in brief. Also state the meaning of adjustment of closing error of traverse.

Answer : Methods of plotting compass traverse are: 1. By parallel meridian through each station. 2. By included angle. 3. By paper protractor. 4. By rectangular co-ordinates. 5. ... . 5. Finally join new points to get corrected traverse ABCDEA after graphical adjustment of closing error.

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