# questions on periodic and aperiodic signals

ASK ON FB page .facebook link : https://www.facebook.com/studysimplified/quora link : https://www.quora.com/profile/Shrenik-Jain-51 t is any part of periodic signal or it may be 2 pie Question 1 : x(n) = u(n) - u(n-10) Solution : this problem can be solved by using diagram method as u(n) = 1, n>0 ... then an irrational period will create an aperiodic signal. The periodic component is obtained by subtracting the reconstructed aperiodic component signal from the residual signal. If the above 3 questions are true so far, the non-periodic digital signals, like the periodic ones, are also composed of analogue sine wave signals, right? Information can be shared by means like sounds, action, gestures etc. Signals into Periodic and Aperiodic Components B. Y egnanarayana, Senior Member, IEEE, Christophe d’Alessandro, Member, IEEE, and V assilis Darsinos Abstract — The speech signal … Fundamental of Networking Online Tests margin-left: 13px; or Register padding-left: 0px; How to repair street end of driveway that has loose asphalt? Non-periodic digital signals would have no patterns such as "10011101..110001..", right? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. So they can conclude that $f(x)$ is aperiodic. $$\left|f(x)\right|=\left|f(x+kT)\right|<\varepsilon_k$$ with Periodic analog signals can be classified as simple or composite. In answer to your question there is a nice slide in the following PowerPoint presentation .... You must log in or register to reply here. By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. 1 The _______ wave is the simplest analog signal. Sender: As the name sugge... Signalling is a source of energy that used to convey the information. The periodic digital signal is then composed of many composite analogue sine wave signals that are periodic. In data communication domain, there are two major types of signals viz. Filtering can thus be seen as a way to change the frequency content of an input signal. cursor: pointer; Since periodic as well as aperiodic signals have Fourier representations consisting of sinusoids of different frequencies, these signal components can be modified by appropriately choosing the frequency response of a LTI system, or filter. Computer Networking MCQs There are five main parts of the communication system:Message: Message is the data which needs to be sent .It can be in any form like text, audio, number, video, images. Scalability problem: is the end of Bitcoin near? periodic analog signals and non-periodic or aperiodic digital signals. You can prove it using rev 2020.11.24.38066, The best answers are voted up and rise to the top, Mathematics Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us, Thanks for the answer....the third question i asked because of this answer how he is saying after $\lim_{x\to \infty }f'(x)=0.$ its aperiodic. MathJax reference. Thanks for contributing an answer to Mathematics Stack Exchange! This set of Data communication and Networking Multiple Choice Questions and Answers (MCQs) focuses on “Data Signal – Analog Digital and Periodic Aperiodic”. Given the signal X (t) = cos t, if t<0 Sin t, if t≥0 For continuous signals, then any period will create a periodic signal. For a better experience, please enable JavaScript in your browser before proceeding. When checking for periodicity, you’re checking in a graphical sense to […] Signals \u0026 Systems: Solved questions on Periodic and Non-Periodic Signals.Topics Covered:1. Example: The sinusoidal signal is periodic having periodicity value of 2π. periodic analog signals and non-periodic or aperiodic digital signals. Well, if $f^\prime(x)$ were periodic and $\lim_{x\to\infty}f^\prime(x)=0$, this would imply that $f^\prime(x)=0$ for all $x$ (using the property shown in your 3rd question). Consider for instance: Yes, if the derivative of a function $f(x)$ exists, and $f(x)$ is periodic with period $T$, then $f'(x)$ is also periodic with the same period $T$ because, for all $x$ and all integers $k$, $f(x)+g(x) = \sin(\sqrt{2}x)$ is a periodic function of period $\frac{2\pi}{\sqrt{2}}$. Sum of a periodic and aperiodic signal always be a aperiodic signal? Period of two periodic functions with same period, Decomposition of periodic spikes into frequencies. If a periodic function $f(x)$ satisfies $\lim_{x\to\infty}f(x)=0$ then $f(x)=0$ for all $x$. Why Fourier series has summation and Fourier transform has integration symbol in their respective formulae? A signal is periodic if x(t) = x(t + T0), where T0, the period, is the largest value satisfying the equality. JavaScript is disabled. Periodic Signal. I have three question on periodic and aperiodic signal that I have doubt about also I couldn't find the answer on searching so I am asking here. Did the Genesis device create planet Genesis? Making statements based on opinion; back them up with references or personal experience. to leave a response. Is Heaviside step function or unit step function periodic? Does the Discrete Fourier Transform assume a periodic signal, or one that dies off? 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