View Answer, 12. Periodic Discrete time signals b. Aperiodic Discrete time signals c. Aperiodic continuous signals d. Periodic continuous signals. Now, the relation between the two signals is given as y(n)=αx(n-D)+w(n) Explanation: Let us consider a signal x(n) whose auto correlation is defined as rxx (l). b) No Determine the value of the summation: ∑∞n= -∞δ(n-1)sin2n. c) Both causal and non causal What is the relation between cross correlation and auto correlation? Define Discrete Time Signal? a) 1 Explanation: A discrete-time signal is continuous in amplitude and discrete in time. Consider the following statements regarding a linear discrete-time system: H (z) = z2+1/(z+0.5)(z-0.5) 1. A subset of these problems will be posted on compass as multiple choice questions. c) Exponential sequence d) 12 Now, z[n] = z[n-1] + y[n], is z[n] stable? The ratio of output signal to input signal is the transfer function of the system. Digital Signal Processing Multiple Choice Questions And Answers Pdf >>>CLICK HERE<<< Media PDF … LTI discrete time systems can be analysed using DTFT, if input signals are DTF transformable and if system is stable. Digital Signal Processing LAB VIVA Questions :-1. ... Digital Signal Processing Questions and Answers ; Control Systems Questions and Answers ; c) The function is unstable a) The function is marginally stable This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Discrete Time Signals”. If n tends to infinity, is the accumulator function a stable one? What is the auto correlation of the sequence x(n)=anu(n), 0> Category >> Electronic Engineering (MCQ) questions & answers >> Digital Signal Processing; Q. Discrete-time, discrete-amplitude. This DSP quiz is crafted to test your skills in the fundamental concepts of signal processing. The purpose of performing a DFT operation is so that we get a discrete-time signal to perform other processing like filtering and spectral analysis on it. © 2011-2020 Sanfoundry. EduRev is a knowledge-sharing community that depends on everyone being able to pitch in when they know something. Therefore, this type of shifting is known as Right shifting. This set of Digital Signal Processing Multiple Choice Questions & Answers (MCQs) focuses on “Correlation of Discrete Time Signals”. x(n)={….0,0,2,-1,3,7,1,2,-3,0,0….} These short objective type questions with answers are very important for Board exams as well as competitive exams. 1, 2 and 3 are correct b. c) z = 2esT. long questions & short questions for Electrical Engineering (EE) on EduRev as well by searching above. In other words, a discrete time system takes a discrete time input signal and gives a discrete signal as output. The initial value of h(0) of the impulse response is -4 3. c) Both convert analog signal to digital signal. b) The system is causal Part 3: List for questions and answers of Digital Signal Processing . Since scaling is unimportant, it is often desirable, in practice, to normalize the auto correlation sequence to the range from -1 to 1. d) Discrete in amplitude and continuous in time => (a/b)2rxx(0)+ryy(0)+2(a/b)rxy(l) ≥0 Please answer the questions by 10:00 PM on the date indicated. EC8553 Important Questions Discrete Time Signal Processing Regulation 2017 Anna University free download. a) The system is non causal The questions are accompanied with reasons and solutions. b) {2,1.5,6,0} When K is less than zero the shifting of signal takes place towards right in the time domain. Now, z[n] = z[n-1] + y[n]. View Answer, 13. b) False Since the quadratic is nonnegative, it follows that the discriminate of this quadratic must be non positive, that is 4[r2xy(l)- rxx(0) ryy(0)] ≤0 =>|rxy(l)|≤√(rxx(0).ryy(0)). a) True Amplitude shifting means shifting of signal … Ans1. Explanation: So, auto correlation sequence is an even sequence. View Answer, 3. students definitely take this Test: Discrete Time Signal Correlation exercise for a better result in the exam. … c) {2,0,1.5,6} a) pi/2w Time Domain Representation for LTI Systems, Signal Transmission Through Linear Systems, here is complete set of 1000+ Multiple Choice Questions and Answers, Prev - Signals & Systems Questions and Answers – Properties of Systems – 5, Next - Signals & Systems Questions and Answers – Useful Signals, Signals & Systems Questions and Answers – Properties of Systems – 5, Signals & Systems Questions and Answers – Useful Signals, Software Architecture & Design Questions and Answers, Information Technology Questions and Answers, Mechatronics Engineering Questions and Answers, Instrumentation Transducers Questions and Answers, Instrumentation Engineering Questions and Answers, Wireless & Mobile Communications Questions & Answers, Electronic Devices and Circuits Questions and Answers, Electrical & Electronics Engineering Questions and Answers, Electronics & Communication Engineering Questions and Answers, Electrical Engineering Questions and Answers, Biomedical Instrumentation Questions and Answers, Digital Communication Questions and Answers, Discrete Mathematics Questions and Answers, Digital Signal Processing Questions and Answers. Thus the normalized auto correlation sequence is defined as ρxx(l)= (rxx (l))/(rxx (0)). The linear convolution of a discrete-time signal of length L and a discrete-time signal of length M produces a discrete-time convolved result of length 2L + 2M – 1. c) Low. d) None of the mentioned Digital Signal Processing study material includes digital signal processing notes, digital signal processing book, courses, case study, syllabus, question paper, MCQ, questions and answers and available in digital signal processing pdf form. b) Continuous in amplitude and discrete in time Q1. View Answer, 15. discrete … d) Both convert digital signal to analog signal . EC8553 DTSP Syllabus. a) Yes We define y[n] = nx[n] – (n-1)x[n]. d) sin4 a) It is stable a) Integrator ~~ Best Book Signal Processing Questions And Answers ~~ Uploaded By Beatrix Potter, viva questions and answers on digital signal processing 1 differentiate between a discrete time signal and a digital signal a discrete time signal can be defined as a signal which is continuous in amplitude and discrete in time in other words a discrete time The figure given below shows right shifting of a signal by 2. Which of the following parameters are required to calculate the correlation between the signals x(n) and y(n)? By practicing these MCQs of Z Transform & its Application MCQs ( Digital Signal Processing ) MCQs – Latest Competitive MCQs , an individual for exams performs better than before.This post comprising of objective questions and answers related to “Z Transform & its Application MCQs ( Digital Signal Processing ) Mcqs “. 1) Linearity 2) Modulation 3) Shifting 4) Convolution. Verify Parseval’s theorem of the sequence x(n)=1n4u(n) Solution − ∑−∞∞|x1(n)|2=12π∫−ππ|X1(ejω)|2dω L.H.S ∑−∞∞|x1(n)|2 =∑−∞∞x(n)x∗(n) =∑−∞∞(14)2nu(n)=11−116=1615 R.H.S. All Rights Reserved. These short solved questions or quizzes are provided by Gkseries. View Answer. b) z = e2sT. I think this used to be in the old version of Oppenheim and Schafer but it is omitted in the new "Discrete-Time Signal Processing" $\endgroup$ – David 5 hours ago d) z = esT/2 . Continuous-time, continuous amplitude (Analog Signals) Discrete time, continuous amplitude. The solved questions answers in this Test: Discrete Time Signal Correlation quiz give you a good mix of easy questions and tough questions. c) 9 Discrete-Time Signal Processing - EC8553. Is the function y[n] = x[n-1] – x[n-4] memoryless? Optional book references are for Oppenheim & Schafer, with Buck, Discrete-Time Signal Processing, 2nd Ed. Test Set - 3 - Digital Signal Processing - This test comprises 40 questions. Digital Signal Processing Objective Type Questions and Answers for competitive exams. Determine the discrete-time signal: x(n)=1 for n≥0 and x(n)=0 for n<0 a) True The system is stable 2. View Answer, 10. A discrete time signal x (n) is a function of an independent variable that is an integer. The relation between cross correlation and auto correlation sequence rxx ( l ) discrete-time signal Processing LAB VIVA:... Of x ( n ) and y ( n ) = { ….0,0,2 -1,3,7,1,2! Students preparing for semester exams, GATE, IES, PSUs, NET/SET/JRF, UPSC other... Present in nature for a better result in the case of auto correlation two... With latest contests, videos, internships and jobs exp ( jwn ) in amplitude and discrete in and... Or quizzes are provided by Gkseries with period 2π areas of signals & Systems, here is complete of... 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