User Account

All Pages

Illustrate the discrete-time fourier transform

Assignment Help Electrical Engineering
Reference no: EM131674613

Question 1:

A certain analog signal xa (t) has the following real Fourier transform:

                1, |Ω|≤8Π
Xa(jΩ) =
                0, otherwise

(a) Illustrate Xa(jΩ)

(b) Carefully illustrate the discrete-time Fourier transform of the discrete-time signal x(n) define by x(n) = xa(nT) for the case T = 1/16sec and T = 1/4 sec.

(c) Is xa(t)band limited? If so, find the Nyquist rate. If not, tell why not.

Question 2:

Let x[n], 0 ≤ n ≤ N - 1 be an even-length sequence with an N-point DFT X[k], 0 ≤ k ≤ N - 1. Determine the N-point DFTs of the following length-N sequences in terms of X[k]:

(a) u[n] = x[n] - x[n - N/2]

(b) y[n] = x[n] + x[n - N/2]

(c) y[n] = (-1)nx[n]

Reference no: EM131674613

Questions Cloud

Discuss case for a pharmaceutical warehouse : Jarold Daniel Friedman worked as a temporary computer contractor for a pharmaceutical warehouse. The warehouse offered him a permanent position.
Religion respective rules and you want : Provide a dinner menu that is acceptable to 5 guests of different faiths: Judaism, 7th Day Adventist Christians, Muslims, Hindus, and Buddhists.
Identify what crimes are defined as index crimes : What is the Uniform Crime Report and what is it used for. Identify what crimes are defined as index crimes and explain the Hierarchy Rule
How the values and mission statement help to shape planning : Give an example of how the values and mission statement help to shape planning. what you believe is distinctive competence and core competence of your company.
Illustrate the discrete-time fourier transform : Illustrate the discrete-time Fourier transform of the discrete-time signal and Determine the N-point DFTs of the following length-N sequences in terms of X[k]
An emergency management and its importance to communities : discussed Emergency Management and its importance to the local communities as well as, state and federal officials
Entrepreneurial marketing strategy : What are the differences between an entrepreneurial marketing strategy and a large corporation's marketing strategy?
Reduce and avoid turnover among employees : What are some of the steps that organizations take to reduce and avoid turnover among employees?
Ethical guidelines of an american business manager : What ethical guidelines could help an American business manager working in another country decide whether she should engage in behavior that is ethical.

Reviews

Write a Review

Electrical Engineering Questions & Answers

  Lithium ion battery technology

The paper includes Lithium ion battery technology with its advantages and disadvantages. The paper discusses about the Lithium air battery in which detailed reactions of Lithium with air including nonaqueous as well as aqueous are given.

  Power transformers and tariffs

Construction of different types of power transformer, significant energy savings

  Paper on orthogonal frequency-division multiplexing

This document is shown a paper on Orthogonal frequency-division multiplexing with advantages, disadvantages and uses.

  Function of the hmi in a scada system

This assignment contains electronics engineering questions like State the commonly found components of a SCADA (Supervisory control and data acquisition) system. and decribe the function of the HMI in a SCADA system.

  Resultant waveform of the odd harmonic series

Prepare an Excel graph showing the individual components and summated resultant waveform of the odd harmonic series resulting in an approximate square wave.

  Explain scada system

Explain the function of the HMI in a SCADA system.

  Design a 2-digit 24 second shot-clock

Design a 2-digit 24 second "shot-clock" countdown timer with pushbutton controller.

  Model a discrete-time system

To understand di erent signal models To be able to model a discrete-time system and design simple signal processing algorithms.

  Draw a relay construction diagram

Draw a relay construction diagram and briefly explain the operation of a relay.

  Frequency division multiplexing

Write a short technical report on Frequency Division Multiplexing

  Impact of electron energy

Briefly discuss the impact of electron energy, electron current and target on the Bremsstrahlung generated.

  Traffic light controller

The schematic of the traffic light controller

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd