Digital Signal Processing Test Questions


Q.  The interface between an analog signal and a digital processor is

a. D/A converter
b. A/D converter
c. Modulator
d. Demodulator


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  For a system function H(s) to be stable
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MCQs:  IIR filter design by approximation of derivatives has the limitations 1) Used only for transforming analog high pass filters 2) Used for band pass filters having smaller resonant frequencies 3) Used only for transforming analog low pass filters 4) Used for band pass filters having high resonant frequencies
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MCQs:  The filter that may not be realized by approximation of derivatives techniques are 1) Band pass filters 2) High pass filters 3) Low pass filters 4) Band reject filters
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MCQs:  In direct form for realisation of IIR filters, 1) Denominator coefficients are the multipliers in the feed forward paths 2) Multipliers in the feedback paths are the positives of the denominator coefficients 3) Numerator coefficients are the multipliers in the feed forward paths 4) Multipliers in the feedback paths are the negatives of the denominator coefficients
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MCQs:  The direct form II for realisation involves 1) The realisation of transfer function into two parts 2) Realisation after fraction 3) Product of two transfer functions 4) Addition of two transfer functions
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MCQs:  The cascade realisation of IIR systems involves 1) The transfer function broken into product of transfer functions 2) The transfer function divided into addition of transfer functions 3) Factoring the numerator and denominator polynomials 4) Derivatives of the transfer functions
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MCQs:  The advantage of using the cascade form of realisation is 1) It has same number of poles and zeros as that of individual components 2) The number of poles is the product of poles of individual components 3) The number of zeros is the product of poles of individual components 4) Over all transfer function may be determined
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MCQs:  Which among the following represent/s the characteristic/s of an ideal filter?
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MCQs:  FIR filters ________ A. are non-recursive B. do not adopt any feedback C. are recursive D. use feedback
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MCQs:  In tapped delay line filter, the tapped line is also known as ________
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MCQs:  How is the sensitivity of filter coefficient quantization for FIR filters?
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MCQs:  Decimation is a process in which the sampling rate is __________.
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MCQs:  Which units are generally involved in Multiply and Accumulate (MAC)?
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MCQs:  In DSP processors, which among the following maintains the track of addresses of input data as well as the coefficients stored in data and program memories?
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MCQs:  The cost of the digital processors is cheaper because
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MCQs:  The operations that may be performed on vectors in Euclidean Space are 1) Inner product, distance between vectors 2) Norm of a vector, orthogonal vectors 3) Orthonormal functions 4) Vector division
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MCQs:  The norm or length of a signal is given by
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MCQs:  The principle of Gram-Schmidt Orthogonalization (GSO) states that, any set of M energy signals can be expressed as
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MCQs:  Time shifting of discrete time signal means
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MCQs:  Time reversal of a discrete time signal refers to
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