Nothing Special   »   [go: up one dir, main page]
Scribd Logo
Upload

Welcome to Scribd!

  • 14 views

    Sample DSP Questions

    Uploaded by

    sandeeprvjec
    This document contains exam questions on discrete time signals and systems: 1. It asks to explain the linear shift invariant property with an example and describes a system to determine if it is causal. 2. It provides impulse responses and asks to test stability of one and determine the convolution of two sequences. 3. It asks to prove the relationship between cross correlation and convolution and find the even and odd parts of a signal. 4. Additional questions involve plotting shifted and scaled versions of Dirac delta and unit step functions, finding shifted versions of a given signal, and determining the natural response and cross correlation of systems.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as DOCX, PDF, TXT or read online from Scribd

    Sample DSP Questions

    Uploaded by

    sandeeprvjec
    14 views1 page
    This document contains exam questions on discrete time signals and systems: 1. It asks to explain the linear shift invariant property with an example and describes a system to determine if it is causal. 2. It provides impulse responses and asks to test stability of one and determine the convolution of two sequences. 3. It asks to prove the relationship between cross correlation and convolution and find the even and odd parts of a signal. 4. Additional questions involve plotting shifted and scaled versions of Dirac delta and unit step functions, finding shifted versions of a given signal, and determining the natural response and cross correlation of systems.

    Original Description:

    Original Title

    Sample Dsp Questions

    Copyright

    © Attribution Non-Commercial (BY-NC)

    Available Formats

    DOCX, PDF, TXT or read online from Scribd

    Did you find this document useful?

    Is this content inappropriate?

    This document contains exam questions on discrete time signals and systems: 1. It asks to explain the linear shift invariant property with an example and describes a system to determine if it is causal. 2. It provides impulse responses and asks to test stability of one and determine the convolution of two sequences. 3. It asks to prove the relationship between cross correlation and convolution and find the even and odd parts of a signal. 4. Additional questions involve plotting shifted and scaled versions of Dirac delta and unit step functions, finding shifted versions of a given signal, and determining the natural response and cross correlation of systems.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    14 views1 page

    Sample DSP Questions

    Uploaded by

    sandeeprvjec
    This document contains exam questions on discrete time signals and systems: 1. It asks to explain the linear shift invariant property with an example and describes a system to determine if it is causal. 2. It provides impulse responses and asks to test stability of one and determine the convolution of two sequences. 3. It asks to prove the relationship between cross correlation and convolution and find the even and odd parts of a signal. 4. Additional questions involve plotting shifted and scaled versions of Dirac delta and unit step functions, finding shifted versions of a given signal, and determining the natural response and cross correlation of systems.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    of 1

    PART A (Answer all questions.

    5 Marks each)
    1)Explain the linear shift invariant property of discrete time signals and explain with an example.
    2)The output-input relationship of a discrete time system is approximated by
    Y(n)=x(n+1)-2x(n)+x(n-1),Is it a causal system? Explain with reason.
    3)Test the stability of a system whose impulse response is
    H(n)=(1/2)nU(n)
    4)Determine the convolution of
    X(n)={1,2,1,1}
    H(n)={1,-1,1,-1}
    5)Prove the relationship between Cross correlation and Convolution.
    6)Find the even and odd part of a signal x(n)={0.5,1,2.5,4,2.5,1,0.5}

    PART B
    7)Plot the signals
    -δ(n-3)
    2 δ(n+5)
    α

    ∑ δ (n+ 1) e−2 n
    n=0
    1-u(n)
    -U(n)……………………..(15 marks)

    Or

    For a signal x(n)={-1,-1/2,1/2,1,1,1,1,1/2}


    Find 1)x(n-4)
    2)x(3n)
    3)x(-n)
    4)x(n-2) δ(n-2) and plot it…………………………(15 marks)

    8)a)Find the natural response of a system


    Y(n)-4y(n-1)+4y(n-2)=x(n)-x(n-1)
    Where the initial conditions are y(-1)=y(-2)=1……….(10 marks)
    b)Find the cross correlation of two sequences of finite length
    x(n)={1,2,1,1}
    y(n)={1,1,2,1}…………(5 marks)

    Or

    Find the total response of a system


    Y(n)-0.3y(n-1)-0.04y(n-2)=x(n)+2x(n-1)
    Where y(-1)=y(-2)=1
    And x9n0=3nu(n)………………………(15 marks)

    You might also like