topic wise questions

8/10/2019 Topic Wise Questions

1/6

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MICRO PROCESSOR BASED

What circuit is used in a signal conversion system to store voltage levels, draw a

schematic of such a circuit giving its working.3. >>> sample and hold cicuit

Give the circuit layout of microprocessor based blood pressure measuring machine along

with its flow chart and program.

Give the basic scheme for microprocessor based data acquisition system

along with necessary interfacing devices and algorithm. 7

With reference to this system explain the selection criterion of analog to digital converter. 7

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DIGITAL FILETRS :

a) Why it is advantageous to use integer coefficients in digital filters difference

equation?

e)

What are the main requirements of real time digital filter, for this what type ofdigital filter is preferred.

>>page 151

Give the differences between analog and digital filters.

What are the main requirements of real time digital filter, give the design criterion for

same

a) Explain the relationship between the frequencies present in a signal and the sampling theorem 2

b) Why are finite length register effects less significant in FIR filters than in IIR filters 2

Explain briefly the term Aliasing effect and Fold over with example. 2b) Give the basic elements of digital filter, along with their symbols 2

c) What is finite-length register effect? 2

Compute and sketch the amplitude and phase response of two Hanning filters.

A differentiator using two point difference algorithm is cascaded with trapezoidal type

integrator. A unit impulse is applied to the cascaded system what will be its output sequence.

Explain the working and design procedure of integer type digital filter. 5


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6

A filter has two poles at z= 0.5 j0.5 and two zeros at z = 0.707 j0.707,

what type of filter is this.

3. a) The transfer function of a filter designed for sampling rate of 800 samples/sec is

H(z) = (1 - 0.5z-1

)( 1 + 0.5z-1

), A 200 Hz sine wave with a peak amplitude of 4 is

applied to the input, find the peak value of output signal. 4

b) Design a 50 Hz digital notch filter to remove power frequency noise from ECG

signal, suggest methods to increase the sharpness of this filter.c)

b) Design a 4th

order 50 Hz IIR type notch filter to remove power frequency noise from

ECG signal, suggest methods to increase the sharpness of this filter.

Design a 50 Hz second order IIR type digital notch filter to remove power frequency noise

from ECG signal, suggest methods to increase the sharpness of this filter.

b) Design a 50 Hz notch filter to remove power frequency noise from ECG signal. What you will

do to increase the Q factor of this filter.

2 a) Two filters are cascaded. Their respective transfer functions are :-

H1 = 1 + 2z-1

+ z-2

and H2 = 1- z-1

find out the impulse response of the cascaded system

and what is its amplitude response at DC input.

. The z transform of afilter is: H(z) = 2 - 2z-4

. What is its (i) amplitude response and

(ii) phase response.

b) Two filters are cascaded with transfer function: H1(z) = 1 + 2z-1

+ z-2

and H2(z) = 1 - z-1

respectively. A unit impulse is applied to the input of cascaded filter, give the outputresponse and what is the magnitude of the amplitude response at DC and at half of fold

over frequency.

7

7


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DATA REDUCTION ALGORITHMS

b). Explain the need of data reduction and the desired features of data compression

algorithms.

>>page 193explain turning point algorithm

Explain in brief the meaning of lossless and lossy data compression.

List the different data reduction techniques giving their merits and demerits, and explain

the AZTEC data reduction technique along with algorithm.

Why AZTEC reconstructed ECG wave form is unacceptable to cardiologist, suggest ways

to alleviate this problem.

Discuss the different techniques of QRS detection giving their meritsand demerits.

Explain briefly the term Aliasing effect and Fold over with example


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ARTIFICIAL NEURAL NETWORK

6. Write shot note on any two

c) Hybrid networks based on ANN and Fuzzy systems.

4.

a) Give the general concept of genetic algorithm and explain the evaluation

and optimization technique. 72

Q6.a) Give the generalized concept of Fuzzy based system, give the application of fuzzy List

the differences between artificial neuron and biological neuron.>>1-1 last para2

a) e) Give the single layer ANN for six inputs and two outputs , the outputs are to be

limited and continuous over the range of 0 to 1.

On the basis of working of biological neuron derive the model for artificial neuron, and list

the various transfer function used. 5

c) Applications of Artificial intelligence in the field of biomedical engineering6

Explain the design criterion for neural network, giving procedure for selection of number

of layers, number of neurons in each layer and their interconnections and transfer function

,

Give the differences between supervised and unsupervised training of ANN, what is the

basis of selection of training rule.

b)

Give the different learning rules for ANN along with equations.

b) Explain the working of perceptron type neural network. Give the algorithm for

training of these network. 6


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Give the Hopfield and Hamming type ANN along with equations. 6

Explain the working of Hamming type ANN giving how its weight and bias values are

selected.

Give the schematic of Hopfield network also give its application.

.

b) Give the Hamming type and Hopfield type ANN and explain its working. 8

system in pattern recognition

) Explain the principle and working of Genetic Algorithm, also explain the different for

cross over and mutation strategies. 6

. Write shot note on any two

a)Genetic Algorithm

b) Fuzzy logic and its realization.

c) Applications of Artificial intelligence in the field of biomedical engineering

6x2

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