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Quiz: DSP - Filters

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Number of Questions: 40

Question: 11 -

Basically, group delay is the delayed response of filter as a function of ________.

Options:

  1. All of the above

  2. Amplitude

  3. Frequency

  4. Phase

    5. Answer:

    Frequency
    Solution not available.

Question: 12 -

A filter is said to be linear phase filter if the phase delay and group delay are _______

Options:

  1. Constant

  2. High

  3. Moderate

  4. Low

    5. Answer:

    Constant
    Solution not available.

Question: 13 -

The impulse invariant method is obtained by

Options:

  1. Taking backward difference for the derivative

  2. Approximation of derivatives

  3. Sampling the impulse response of an equivalent analog filter

  4. Mapping from s-domain to z-domain

    5. Answer:

    Sampling the impulse response of an equivalent analog filter
    Solution not available.

Question: 14 -

Radix - 2 FFT algorithm performs the computation of DFT in

Options:

  1. N/2Log2 N multiplications and NLog2 N additions

  2. NLog2 N multiplications and N/2Log2 N additions

  3. N/2Log2 N multiplications and 2Log2 N additions

  4. Log2 N multiplications and N/2Log2 N additions

    5. Answer:

    N/2Log2 N multiplications and NLog2 N additions
    Solution not available.

Question: 15 -

The effects caused due to finite word lengths are

1) Coefficient quantization error
2) Adder overflow limit cycle
3) Round off noise
4) Limit cycles

Options:

  1. 1 and 4 are correct

  2. 1, 2 and 3 are correct

  3. All the four are correct

  4. 1 and 3 are correct

    5. Answer:

    All the four are correct
    Solution not available.