c) 2pi/w Electrical Engineering (EE) 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. View Answer, 4. 15 Questions MCQ Test Digital Signal Processing | Test: Z Transform ... (EE) helps you for every Electrical Engineering (EE) entrance exam. c) Both stable and unstable A discrete time signal x (n) is a function of an independent variable that is an integer. In the case of auto correlation sequence, we can simply divide by rxx (0). Define Discrete Time System? The solved questions answers in this Test: Discrete Time Signal Correlation quiz give you a good mix of easy questions and tough questions. These short objective type questions with answers are very important for Board exams as well as competitive exams. View Answer. =[h(l)*x(l)]*[h(-l)*x(-l)] =[h(l)*h(-l)]*[x(l)*x(-l)] =rhh(l)*rxx(l). I'd suspect it is done by stretching the low pass filter to get the correct bandwidth (frequency dilation) and then frequency shifting it to the correct center frequency. Home >> Category >> Electronic Engineering (MCQ) questions & answers >> Digital Signal Processing; Q. ~~ 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 questions are accompanied with reasons and solutions. b) False students definitely take this Test: Discrete Time Signal Correlation exercise for a better result in the exam. These short solved questions or quizzes are provided by Gkseries. d) Accumulator a) It is stable a discrete time signal is not defined at instant between two successive samples. Continuous-time, continuous amplitude (Analog Signals) Discrete time, continuous amplitude. signal processing questions and answers Oct 04, 2020 Posted By Gérard de Villiers Media Publishing TEXT ID f390ceaf Online PDF Ebook Epub Library recent years the technologies related to image video and sound have found their own importance towards better visualization tools gate … Which of the following is the auto correlation of x(n)? Therefore, this type of shifting is known as Right shifting. c) sin2 Determine the value of the summation: ∑∞n= -∞δ(n-1)sin2n. a) Yes The solved questions answers in this Test: Discrete Time Signal Correlation quiz give you a good mix of easy questions and tough questions. What is the auto correlation of the sequence x(n)=anu(n), 0>>CLICK HERE<<< Media PDF … Digital signal processing interview questions. What is the time period of the function x[n] = exp(jwn)? View Answer, 2. Q1. A discrete time signal may be 1) Samples of a continuous signal 2) A time series which is a domain of integers Continuous time, discrete amplitude. Speech processing ,Image processing, Radar signal processing. The cross correlation of two real finite energy sequences x(n) and y(n) is given as: Explanation: If any two signals x(n) and y(n) are real and finite energy signals, then the correlation between the two signals is known as cross correlation and its equation is given as, Explanation: we know that, the correlation of two signals x(n) and y(n) is, What is the cross correlation sequence of the following sequences? a) Continuous in amplitude and continuous in time View Answer, 14. View Answer, 8. b) Unit impulse sequence Determine the product of two signals: x1 (n) = {2,1,1.5,3}; x2 (n) = { 1,1.5,0,2}. a) z = esT. a) Unit ramp sequence These short solved questions or quizzes are provided by Gkseries. Is the function y[n] = x[n-1] – x[n-4] memoryless? ... Digital Signal Processing Questions and Answers ; Control Systems Questions and Answers ; Determine the discrete-time signal: x(n)=1 for n≥0 and x(n)=0 for n<0 Discrete-time, discrete-amplitude. This set of Signals & Systems Multiple Choice Questions & Answers (MCQs) focuses on “Discrete Time Signals”. b) False Is the above function defined, causal in nature? Which of the following parameters are required to calculate the correlation between the signals x(n) and y(n)? d) 4pi/w 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. If n tends to infinity, is the accumulator function a stable one? d) Discrete in amplitude and continuous in time c) {2,0,1.5,6} LTI discrete time systems can be analysed using DTFT, if input signals are DTF transformable and if system is stable. Periodic Discrete time signals b. Aperiodic Discrete time signals c. Aperiodic continuous signals d. Periodic continuous signals. The normalized auto correlation ρxx(l) is defined as: Explanation: If the signal involved in auto correlation is scaled, the shape of auto correlation does not change, only the amplitudes of auto correlation sequence are scaled accordingly. Now, z[n] = z[n-1] + y[n]. View Answer, 12. What is the nature of the following function: y[n] = y[n-1] + x[n]? a) The system is non causal Join our social networks below and stay updated with latest contests, videos, internships and jobs! Define discrete time and digital signal. Digital Signal Processing LAB VIVA Questions :-1. ... here is complete set of 1000+ Multiple Choice Questions and Answers. d) Constant . View Answer, 10. Optional book references are for Oppenheim & Schafer, with Buck, Discrete-Time Signal Processing, 2nd Ed. Part 3: List for questions and answers of Digital Signal Processing . b) Moderate. a. b) Both convert discrete time domain to frequency spectrum domain. Amplitude Shifting. a) The function is marginally stable Consider the following statements regarding a linear discrete-time system: H (z) = z2+1/(z+0.5)(z-0.5) 1. Explanation: Let us consider x(n) be the input reference signal and y(n) be the reflected signal. When a discrete-time signal is obtained by sampling a continuous-time signal, why we are removing the information about sampling interval and only deal it as a sequence of numbers? 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 “. Digital Signal Processing Objective Type Questions and Answers for competitive exams. Question 2. d) {2,1.5,0,3} 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)). Latest Digital Signal Processing MCQs. The figure given below shows right shifting of a signal by 2. A subset of these problems will be posted on compass as multiple choice questions. 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. 1) Linearity 2) Modulation 3) Shifting 4) Convolution. Is the function y[n] = sin(x[n]) periodic or not? b) 0 b) It is unstable Please answer the questions by 10:00 PM on the date indicated. We know that, a2rxx(0)+b2ryy(0)+2abrxy(l) ≥0 d) sin4 EC8553 DTSP Syllabus. Thus the normalized auto correlation sequence is defined as ρxx(l)= (rxx (l))/(rxx (0)). b) False a) True The initial value of h(0) of the impulse response is -4 3. DTSP Important Questions EC8553 pdf free b) The system is causal Amplitude shifting means shifting of signal … Click on Whatapp logo … => (a/b)2rxx(0)+ryy(0)+2(a/b)rxy(l) ≥0 These short objective type questions with answers are very important for Board exams as well as competitive exams. This set of Digital Signal Processing Multiple Choice Questions & Answers (MCQs) focuses on “Correlation of Discrete Time Signals”. 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. a) Integrator Is the function y[n] = y[n-1] + x[n] stable in nature? long questions & short questions for Electrical Engineering (EE) on EduRev as well by searching above. View Answer, 6. EduRev is a knowledge-sharing community that depends on everyone being able to pitch in when they know something. We know that, for auto correlation sequence rxx (l)=rxx (-l). b) {2,1.5,6,0} ANSWER:(a) 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 L + M – 1 1, 2 and 3 are correct b. The s plane and z plane are related as. View Answer, 11. 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. a) 3 What is the relation between cross correlation and auto correlation? Q48. Electronic Engineering MCQ Question Papers: ENTC, IT Interview Placement. X(ejω)=11−14e−jω=11−0.25cos⁡ω+j0.25sin⁡ω ⟺X∗(ejω)=11−0.25cos⁡ω−j0.25sin⁡ω Calculating, X(ejω).X∗(ejω) =1(1−0.25cos⁡ω)2+(0.25sin⁡ω)2=11.0625−0.5cos⁡ω 12π∫−ππ11.0625−0.5cos⁡ωdω 12π∫−ππ11.0625−0.5cos⁡ωdω=16/15 We can see that, LHS = RHS.HenceProved Online Study Material, Lecturing Notes, Assignment, Reference, Wiki and important questions and answers discrete … If x(n) is the input signal of a system with impulse response h(n) and y(n) is the output signal, then the auto correlation of the signal y(n) is: Explanation: ryy(l)=y(l)*y(-l) We use N-point DFT to convert an N-point time-domain sequence x(n) to an N-point frequency domain sequence x(k). By continuing, I agree that I am at least 13 years old and have read and agree to the. Test Set - 3 - Digital Signal Processing - This test comprises 40 questions. A filter is said to be linear phase filter if the phase delay and group delay are _____ a) High. (PM). 1. d) None of the mentioned Is z[n] a causal system? a) {2,1.5,0,6} Q1.- Classify signals. Determine the value of the summation: ∑∞n= -∞ δ(n+3)(n2+n). a) True Download Digital Signal Processing Notes, PDF, Books, Syllabus for B Tech ECE, EEE, CSE 2021.We provide complete digital signal processing pdf. To practice all areas of Signals & Systems, here is complete set of 1000+ Multiple Choice Questions and Answers. b) The function is stable ... Digital Signal Processing Quiz | MCQs | Interview Questions. Discrete time Fourier Transform (DFFT) of an aperiodic signal is continuous function of Ω and is periodic with period 2π. View Answer, 5. Q20. Discrete-Time Signal Processing - EC8553. Explanation: We know that, the correlation of two signals x(n) and y(n) is. Digital Signal Processing Multiple Choice Questions and Answers for competitive exams. c) 9 b) Yes d) Both convert digital signal to analog signal . In other words, a discrete time system takes a discrete time input signal and gives a discrete signal as output. Explanation: A discrete-time signal is continuous in amplitude and discrete in time. You can find other Test: Discrete Time Signal Correlation extra questions, Discrete time signal is continuous in amplitude and discrete in time, where Digital signal is discrete in time and amplitude. d) z = esT/2 . It can either be present in nature or is sampled from an analog signal. Sanfoundry Global Education & Learning Series – Signals & Systems. c) Exponential sequence View Answer, 3. a) Both convert frequency spectrum domain to discrete time domain. }, {10,-9,19,36,-14,33,0,7,13,-18,16,-7,5,-3}, {10,9,19,36,14,33,0,-7,13,-18,16,-7,5,-3}, {10,-9,19,36,-14,33,0,-7,13,18,16,7,5,-3}. ANSWER:(b) Aperiodic Discrete time signals. a discrete time signal is not defined at instant between two successive samples. We define y[n] = nx[n] – (n-1)x[n]. This contains 10 Multiple Choice Questions for Electrical Engineering (EE) Test: Discrete Time Signal Correlation (mcq) to study with solutions a complete question bank. Discrete-time signals are _________________ a) True Subject: Digital Signal Processing 3. This DSP quiz is crafted to test your skills in the fundamental concepts of signal processing. Explanation: 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 Example. x(n)={….0,0,2,-1,3,7,1,2,-3,0,0….} Now, z[n] = z[n-1] + y[n], is z[n] stable? b) Continuous in amplitude and discrete in time b) z = e2sT. This contains 15 Multiple Choice Questions for Electrical Engineering (EE) Test: Z Transform (mcq) to study with solutions a complete question bank. When K is less than zero the shifting of signal takes place towards right in the time domain. Anna University Regulation 2017 ECE Engineering (ECE) 5th Sem EC8553 DISCRETE-TIME … However, the process of calculating DFT is quite complex. The ratio of output signal to input signal is the transfer function of the system. Where α-attenuation factor representing the signal loss in the round-trip transmission of the signal x(n) Is the function y[n] = x[n-1] – x[n-56] causal? View Answer, 7. 10) The transforming relations performed by DTFT are. D-time delay between the time of projection of signal and the reflected back signal Explanation: Let us consider a signal x(n) whose auto correlation is defined as rxx (l). Dtf transformable and if system is stable present in nature or is sampled from analog! By rxx ( l ) ) 9 d ) sin4 View Answer,.... Better result in the sanfoundry Certification contest to get free Certificate of.. Sin2 d ) { 2,1.5,6,0 } c ) { 2,1.5,6,0 } c ) sin2 d {! Yes b ) Differentiator c ) 2pi/w d ) Both convert analog to! 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