Related InterviewSolutions

• What is the magnitude response |W(ω)| of a rectangular window function?(a) \(\frac{|sin(ωM/2)|}{|sin(ω/2)|}\)(b) \(\frac{|sin(ω/2)|}{|sin(ωM/2)|}\)(c) \(\frac{|cos(ωM/2)|}{|sin(ω/2)|}\)(d) None of the mentionedThis question was addressed to me in a national level competition.This question is from Design of Linear Phase FIR Filters Using Windows topic in portion Digital Filters Design of Digital Signal Processing
• What is the Fourier transform of the rectangular window of length M-1?(a) \(e^{jω(M-1)/2} \frac{sin⁡(\frac{ωM}{2})}{sin⁡(\frac{ω}{2})}\)(b) \(e^{jω(M+1)/2} \frac{sin⁡(\frac{ωM}{2})}{sin⁡(\frac{ω}{2})}\)(c) \(e^{-jω(M+1)/2} \frac{sin⁡(\frac{ωM}{2})}{sin⁡(\frac{ω}{2})}\)(d) \(e^{-jω(M-1)/2} \frac{sin⁡(\frac{ωM}{2})}{sin⁡(\frac{ω}{2})}\)I have been asked this question by my college director while I was bunking the class.Enquiry is from Design of Linear Phase FIR Filters Using Windows in portion Digital Filters Design of Digital Signal Processing
• For |x|≤1, |TN(x)|≤1, and it oscillates between -1 and +1 a number of times proportional to N.(a) True(b) FalseThe question was posed to me during an interview for a job.My question comes from Chebyshev Filters topic in chapter Digital Filters Design of Digital Signal Processing
• What is the value of chebyshev polynomial of degree 5?(a) 16x^5+20x^3-5x(b) 16x^5+20x^3+5x(c) 16x^5-20x^3+5x(d) 16x^5-20x^3-5xThe question was asked in examination.This question is from Chebyshev Filters topic in section Digital Filters Design of Digital Signal Processing
• C=I is the desired normalization factor.(a) True(b) FalseI had been asked this question in an online quiz.My query is from Interpolation by a Factor I topic in portion Digital Filters Design of Digital Signal Processing
• Which of the following is true about the interpolated signal whose spectrum is V(ωy)?(a) (I-1)-fold non-periodic(b) (I-1)-fold periodic repetition(c) I-fold non periodic(d) I-fold periodic repetitionThis question was posed to me during a job interview.The doubt is from Interpolation by a Factor I in section Digital Filters Design of Digital Signal Processing
• If x(m) and v(m) are the original and interpolated signals and ωy denotes the frequency variable relative to the new sampling rate, then V(ωy)= X(ωyI).(a) True(b) FalseI have been asked this question in unit test.Asked question is from Interpolation by a Factor I in section Digital Filters Design of Digital Signal Processing
• The following sampling rate conversion technique is interpolation by a factor I.(a) True(b) FalseI got this question during an interview.Origin of the question is Interpolation by a Factor I topic in division Digital Filters Design of Digital Signal Processing
• What is the relationship between ωx and ωy?(a) ωy= ωx.I(b) ωy= ωx/I(c) ωy= ωx+I(d) None of the mentionedThis question was addressed to me during an online interview.The question is from Interpolation by a Factor I topic in portion Digital Filters Design of Digital Signal Processing
• If X(z) is the z-transform of x(n), then what is the z-transform of interpolated signal v(m)?(a) X(zI)(b) X(z+I)(c) X(z/I)(d) X(zI)The question was asked in quiz.I'd like to ask this question from Interpolation by a Factor I topic in section Digital Filters Design of Digital Signal Processing