# discrete fourier transform questions and answers

This set of Digital Signal Processing Multiple Choice Questions & Answers (MCQs) focuses on “Properties of Fourier Transform for Discrete Time Signals”. Clearly State Which Properties (if Any) You Have Used And Show Your Work. 15. 14. Questions & Answers on Fourier Integral, Fourier Transforms and Integral Transforms . My definition of Discrete Fourier Transform is: the " Stack Exchange Network Stack Exchange network consists of 176 Q&A communities including Stack Overflow , the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. 11. Question: Discrete-time Fourier Transform (DTFT). It offers the techniques for digital filter design and frequency analysis of digital signals. Find b n in the expansion of x 2 as a Fourier series in (-p, p). 1. The discrete Fourier transform or DFT is the transform that deals with a nite discrete-time signal and a nite or discrete number of frequencies. Since each of the rectangular pulses on the right has a Fourier transform given by (2 sin w)/w, the convolution property tells us that the triangular function will have a Fourier transform given by the square of (2 sin w)/w: 4 sin2 w X(()) = (0). 19. Which frequencies? Define The Range Of A And B For Which This DTFT Will Exist. Explore the latest questions and answers in Fourier Series, and find Fourier Series experts. Since f ( x) = x 2 is an even function, the value of b n = 0. If x(n)=x R (n)+jx I (n) is a complex sequence whose Fourier transform is given as X(ω)=X R … In other words, a discrete time system takes a discrete time input signal and gives a discrete … ¦ f f n X ( ) x[n]z n Definition of z-transform: For causal sequence, x(n) = 0, n< 0: View Lab 5.pdf from ELECTRICAL 632 at York University. Z - Transform 1 CEN352, Dr. Ghulam Muhammad King Saud University The z-transform is a very important tool in describing and analyzing digital systems. )2 Solutions to Optional Problems S9.9 A. Discrete Fourier Transform and zero padding For the signals 1 [] and 2 [] answer the following questions: 1 [] = 230/100 Determine The DTFT Of The Following Sequence: X[n]=x**'[-n+1]+8*-!8[n–2]. The section contains questions and answers on fourier transform and convolution, linear difference equations, z-transforms, fourier integral theorem, parseval’s identity, finite fourier sine and cosine transforms. Find the constant a 0 of the Fourier series for function f (x)= x in 0 £ x £ 2 p. The given function f (x ) = | x | is an even function. Fourier Transform example if you have any questions please feel free to ask :) thanks for watching hope it helped you guys :D A system is said to be a discrete time system, if the system's excitation and responses are both discrete time signals. Questions (49) ... [x y] which could be used for 2D discrete fourier transform… Academia.edu is a platform for academics to share research papers. Basically a system is a device which takes a signal as input and gives another signal as output.