b.tech. degree examination, may - 2013 · pdf file... write the applications of...

Total No. of Questions : 9] [Total No. of Pages : 01

B.Tech. DEGREE EXAMINATION, MAY - 2013(Examination at the end of Final Year)

ELECTRONICS AND COMMUNICATION ENGG.Industrial Management

Time : 03 Hours Maximum Marks : 75

Question No. 1 is compulsory and answer any Four from the remainingAll questions carry equal marks

(5 × 3 = 15)

Q1) Write short notes :

(a) Partnership.

(b) Value analysis.

(c) OC curve.

(d) EOQ.

(e) Market research.

Q2) What is management? And explain principles of scientific management.

Q3) What is joint stok company? And explain the merits and demerits of private limited company.

Q4) Describe the various methods of economic evaluation of alternatives.

Q5) Explain the importance of depriciation and also note down any two methods of depreciation.

Q6) Describe the functions of production planning and control.

Q7) Explain the importance of personnel functions and describe the salient features of motivationin the industrial organisation.

Q8) Explain the importance of materials management and also mention the procurement methods.

Q9) What is marketing management? And also explain the functions of marketing.

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��Total No. of Questions : 5] [Total No. of Pages : 02


ELECTRONICS AND COMMUNICATION ENGG.(Paper - II) : Satellite Communication


Answer Question No.1 compulsory (15)

Q1) (a) Define satellite orbit and axes. (2)

(b) Define G/T ratio of an earth station. (2)

(c) What is API? (2)

(d) Explain space craft antennas. (2)

(e) Explain probability of errors. (2)

(f) What is fast frequency hopping? (3)

(g) What is a slant range? (2)

Answer ONE question from each unit (4 × 15 = 60)

UNIT - I

Q2) (a) Explain orbital effects in communication system - performance in detail.

(b) State and explain Kepler’s laws of planetary motion.

OR

(c) Explain the locating the satellite with respect to the earth.

(d) Explain the history of satellite communications.

UNIT - II

Q3) (a) Explain TDMA.

(b) Explain FDM/FM satellite systems in briefly.

OR

(c) Write the comparison between ‘CDMA’, FDMA’ and ‘TDMA’.

(d) Explain SPADE DAMA satellite system.

UNIT - III

Q4) (a) Explain system noise temperature and G/T ratio.

(b) Explain small earth station antennas.

OR

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��(c) Explain satellite TV system and satellite broadcasting.

(d) Explain design of satellite links for specified C/N ratio in detail.

UNIT - IV

Q5) (a) Explain AC quistion and tracking.

(b) Explain in detail DSSS with CBPSK.

OR

(c) Write a short notes on :

(i) Practical Jammers.

(ii) PN sequences.

(iii) Slow frequency hopping.

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Electronics and Communication Engineering(Paper - III) : MICROWAVE ENGINEERING


Answer Question No.1 compulsory (1 × 15 = 15)

Answer one question from each unit (4 × 15 = 60)

Q1) (a) Velocity modulation explain. (3)

(b) Define coupling factor in directional coupler. (2)

(c) Write the applications of magic Tee. (2)

(d) Explain circulator. (2)

(e) Define isolator. (2)

(f) What is a magnetron. (2)

(g) Define GUNN effect. (2)

UNIT - I

Q2) (a) Draw and explain of Reflex Klystron amplifier.

(b) Explain limitations of conventional tubes at microwave frequencies.

OR

(c) Draw and explain of TWT [Travelling Wave Tube].

(d) Explain cylindrical magnetron.

UNIT - II

Q3) (a) Draw and explain of E-Plane Tee.

(b) Draw and explain of Directional Couplers.

OR

(c) Draw and explain of magic Tee.

(d) Explain Ferrite Devices and Faraday rotations.

UNIT - III

Q4) (a) Draw and explain of varactor diode and write the applications of ‘GUNN’ diode.

(b) Explain of read diode and what is tunneling effect in tunnel diode.

OR

(c) Explain crystal detectors in detail.

(d) Explain PIN diode and compare IMPATT and TRAPATT Diodes.

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��UNIT - IV

Q5) (a) Explain the measurement of frequency using MW Bench.

(b) Measurement of scattering coefficients.

OR

(c) Write short notes on :

(i) VSWR measurement [any method].

(ii) Power measurement.

(iii) Detection of Microwaves.

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Electronics and Communication Engineering(Paper - IV) : ANTENNAS AND PROPAGATION


Answer question No.1 compulsory

Answer one question from each unit

Q1) Write brief notes on : (1 × 15 = 15)

(a) What is a smart antenna. (2)

(b) Radiation mechanisam. (2)

(c) Directive gain. (2)

(d) Half power beam width. (2)

(e) Binomial array. (3)

(f) Application of log periodic antenna. (2)

(g) Basic principle of antenna. (2)

(4 × 15 = 60)

UNIT - I

Q2) (a) Derive an expression for the far field of Quarter-wave monopole of an antenna.

(b) Explain and derive power radiated by current element.

OR

(c) Explain basic principle of small circular loop antenna.

(d) Explain the working of travelling wave antenna.

UNIT - II

Q3) (a) Explain radiation intensity and power gain.

(b) Explain half power beam width and antenna polarisation.

OR

(c) Write the relation between maximum effective aperture and directivity.

(d) Explain and derive Friss transmission equation.

UNIT - III

Q4) (a) Explain uniform linear array.

(b) Explain basic principle of Dolph-Tschebyscheff array.

OR

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��(c) Draw and explain yagi-uda antenna.

(d) Explain in detail parabolic reflector antenna with neat diagram.

UNIT - IV

Q5) (a) Explain space-wave propagation.

(b) Explain ground wave propagation.

OR

(c) Write short notes on :

(i) Critical frequency.

(ii) Skip distance.(iii) Maximum usable frequency.

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Electronics and Communication Engineering(Paper - V) : VLSI DESIGN


Answer question No.1 compulsory (15)

Answer one question from each unit (4 × 15 = 60)

Q1) a) Explain about Moore’s Law and give its significance. (2)b) Draw the stick diagram of a CMOS inverter. (2)

c) Draw the stick diagram for ( )CDABy += for CMOS logic. (3)

d) What is Body effect? (2)e) What is subsystem? (2)f) Distinguish between static and dynamic RAM. (2)g) Explain sub-threshold current. (2)

UNIT - I

Q2) a) What are the steps involved in the N-MOS fabrication? Explain with neat sketch.b) Determine the pull-up to pull-down ratio of an nMOS inverter when driven through

one (or) more pass transistors.OR

Q3) a) Derive the relation between drain to source current Ids

versus drain to source voltageV

ds in non-saturated and saturated regions.

b) Explain BiCMOS inverters with diagrams.

UNIT - IIQ4) a) Explain the terms :

i) Sheet resistance (Rs.)ii) Standard unit of capacitance.

b) Explain different types of scaling models. Write down scaling factors used for thesemodels.

OR

Q5) a) Explain about wiring capacitances.b) Describe in detail about Lambda based design rules.

UNIT - III

Q6) a) Explain the design process of a four bit barrel shifter.b) Explain about design of an ALU subsystem.

OR

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��Q7) a) Explain in detail about architectural issues.

b) Describe the design rules of multipliers.

UNIT - IV

Q8) a) Explain about the following :

i) Full custom ASIC’s.ii) Standard cell based ASIC’s.

b) Explain in detail about functions and procedures.

OR

Q9) a) Write the VHDL code for an 8 × 1 MUX in structural and behavioral model.b) Compare CPLD’s and FPGA’s.

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ELECTRONICS AND COMMUNICATION ENGG.(Paper - VI) : Computer Networks




Q1) a) Define cryptography.b) What is protocol?c) Define Ethernet?d) Define Modem?e) What is meant by floding?f) What is B it Error Rate?g) What are the applications of computer networks?h) List out the layers in TCP/IP protocol.i) What is DNS?j) What is CSMA?k) What is a fire wall?l) What is cipher text?m) What is HTML?n) Distinguish between broadcast routing and multicast routing.o) What is a switch?

UNIT - I

Q2) a) Explain the OSI model layers.b) Describe the sliding window protocol.

OR

Q3) a) Explain guided transmission media.b) What is a computer network? Explain different network topologies.

UNIT - II

Q4) a) Explain briefly the significance of multiple access protocols.b) Discuss the working of Data Link layer switching.

OR

Q5) a) Explain Bluetooth Architecture with a neat diagram.b) Explain the distance vector algorithm.

UNIT - III

Q6) a) Explain about congestion control in networks.b) What do you mean by quality of service? Explain in detail.

OR

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Q7) a) Write short notes on :

i) UDP.ii) TCP.

b) Explain the network layer in the internet.

UNIT - IV

Q8) a) Explain DNS.b) What do you mean by email security? Explain in detail.

OR

Q9) a) Explain public key algorithms.b) Discuss the Authentication Protocols.

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ELECTRONICS AND COMMUNICATION ENGG.(Paper - VI) : Speech Processing



Answer ONE Question from each unit (4 × 15 = 60)

Q1) a) What are the Acoustic Cues?

b) What is Average zero crossing rate?

c) What is sampling theorem?

d) Define DPCM.

e) Define period of a pitch.

f) What is need for short time spectral analysis?

g) What is vocoder?

h) What is subband coding?

i) What is speech synchesizer?

j) What is an Echo?

k) What are different speech sounds?

l) What is quantization noise?

m) What is Mel cepstrum?

n) What is homomorphic system?

o) What is linear prediction?

UNIT - I

Q2) a) Discuss the short time energy with regard to speech processing.b) Explain about physiology of speech production.

OR

Q3) a) Discuss pitch period estimation using autocorrelation.b) Explain the effect of losses in vocal tract.

UNIT - II

Q4) a) Explain the frequency domain pitch estimation.b) Explain about delta modulation and list its advantages.

OR

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Q5) a) Explain the signal estimation from STFT.b) Explain DPCM.

UNIT - III

Q6) a) Explain the short time speech analysis and synthesis structure.b) Explain the spectral root homomorphic filtering.

OR

Q7) a) Explain homomorphic systems for convolution.

b) Show that if x(n) is minimum phase then x(–n) is maximum phase.

UNIT - IV

Q8) a) Briefly explain the principles of Linear predictive analysis.b) Write short notes on speaker recognition algorithms.

OR

Q9) a) Discuss the autocorrelation model.b) Explain about min distance classifier.

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Electronics and Communication Engineering(Paper - VII) : RADAR AND NAVIGATIONAL AIDS


Answer Question No.1 compulsory

Answer ONE question from each unit

Q1) Write briefly on :

a) Doppler effect. (2)

b) Define blind speed. (2)

c) Delaylive cancellers. (2)

d) Radomes. (2)

e) Write radar applications. (1)

f) What is duplexer? (2)

g) Define CFAR. (2)

h) Radar range ambiguity. (2)

(4 × 15 = 60)

UNIT - I

Q2) a) Draw and explain of pulse radar.

b) Derive the signal to noise ratio.

OR

c) Draw and explain of FMCW radar.

d) Derive radar range equation.

UNIT - II

Q3) a) Discuss PRF and range ambiguities.

b) Explain clutter alternation.

OR

c) Draw and explain of MTI radar.

d) Explain sequential lobing.

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��UNIT - III

Q4) a) Explain the effect of Noise Jamming.

b) Write stealth applications.

OR

c) Draw and explain of superhetrodyne receiver.

d) What are the types of electronic counter measure. Explain one counter.

UNIT - IV

Q5) a) Draw and explain of ILS.

b) Explain in briefly DVOR.

OR

c) Write short notes on :

i) LORAN.

ii) TACAN.

iii) OMEGA.

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Electronics and Communication Engineering(Paper - VIII) : OPTICAL COMMUNICATION




Q1) a) Define Numerical Operture. (2)

b) Differences between step Index and Graded Index. (3)

c) What is Attenuation? (2)

d) Define splicing. (2)

e) What is the principle of WDM? (2)

f) Define skew rays and meridional rays. (2)

g) Define refractive Index. (2)

UNIT - I

Q2) a) Explain the total internal reflections in a fiber with neat diagram.b) Discuss different modes of propagation.

OR

Q3) a) Explain the advantages of optical fiber communication.b) A single step index fiber with N.A = 0.25 supports approximately 1500 modes at

850nm wavelength calculate :

i) Diameter of the core.ii) How many modes this supports at 1350 nm.iii) Cladding index if core refractive index n

1 = 1.49.

UNIT - II

Q4) a) Explain different scattering and bending losses.b) With the help of relevant expression. Explain material dispersion and waveguide

dispersion.OR

Q5) a) Explain the inter model and intramodel dispersion.b) Discuss the Rayleigh scattering loss in optical fiber.

UNIT - III

Q6) a) Explain the principle operation of a LASER diode.b) Draw the schematic of edge emitting double hetro-junction LED and explain its

working.OR

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Q7) a) With neat sketches, explain the operation of APD and PIN photo diode.

b) Derive the expression for Bit Error rate in optical receiver.

UNIT - IV

Q8) a) Explain the principle operation of WDM.b) Give an account of fiber optic link power budget with an example.

OR

Q9) a) Write a short notes on SONET.b) Explain OTDR method of measurement of fiber losses with neat sketches.

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Electronics and Communication Engineering(Paper - IX) : MOBILE AND CELLULAR COMMUNICATION (WAVES)


Answer question No.1 compulsory (15)

Answer any one question from each unit

Q1) Write briefly on the following :

a) Write about channel assignment strategies. (2)

b) What are the examples of wireless communication system? (2)

c) Write the link budget design equations using path loss. (2)

d) Draw the block diagram of RAKE receiver. (3)

e) What type of Antennas are used for Mobile Communication? (2)

f) Define radio interface. (2)

g) What are the advantages of fixed channel assignment? (2)

UNIT - I (4 × 15 = 60)

Q2) a) Explain the importance of mobile radio and wire less systems?

b) Explain the frequency reuse concept for seven-cell structure with a diagram.

OR

Q3) a) What is meant by Handoff mechanisum and explain the handoff strategies?

b) Explain about cellular-system with neat diagram.

UNIT - II

Q4) a) Explain the concept of free space propagation model.

b) Explain about time diversity and frequency diversity methods.

OR

Q5) a) Explain about decision feedback equalizers with a diagram.

b) Explain about the different types of fading techniques and how it can be over come?

UNIT - III

Q6) a) Explain the GSM architecture in cellular network.

b) Draw the IS-95 Architecture and explain its importance?

OR

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��Q7) a) Explain the functional architecture and principal interfaces of network and switching

subsystems?

b) What are the different mobile services and explain them?

UNIT - IV

Q8) a) What are the different GPRS functional groups and explain it?

b) Draw the CDMA 2000 layering structure and explain its importance.

OR

Q9) a) Explain about WAP model.

b) Write about :

i) Paging system.

ii) SMS.

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Electronics and Communication Engineering(Paper - X) : DIGITAL IMAGE PROCESSING



Answer any ONE question from each unit

Q1) a) Name different types of greay level transformations. (2)

b) Draw the image compression systems in DIP? (2)

c) What is Histogram? (2)

d) Explain about segmentation of Image. (3)

e) Define lossless compression. (2)

f) What is image sampling? (2)

g) What is the use of Fourier Descriptors? (2)

(4 × 15 = 60)

UNIT - I

Q2) a) Explain with neat diagrams the sampling and quantization and the effect if varyingsampling intervels and quantization levels on the quality of image.

b) List the various fields that uses DIP.

OR

Q3) a) Explain the relation between pixels, linear and non-linear operations.

b) Explain about the elements of visual perception.

UNIT - II

Q4) a) Explain various methods for image enhancement in spatial and frequency domain.

b) Explain the operation of Histogram equatization.

OR

Q5) a) Explain about enchancement of image using arithmetic and logical operations?

b) Find fourier transform 2D sinusoidal function n(x, y) = A sin (u0x + u

0y) and draw the

spectrum.

UNIT - III

Q6) a) Explain about lossy compression.

b) Discuss the restoration of an image in presence of noise.

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��OR

Q7) a) Explain about compression ratio in DIP.

b) Discuss inverse and wiener filtering.

UNIT - IV

Q8) a) Explain the techniques in edge linking and boundary detection.

b) Explain the various techniques of thresholding.

OR

Q9) a) Explain about detection of discontinuities.

b) Explain about image representation schemes.

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��UNIT - II

Q3) a) Explain interfacing of output device.b) Discuss the features of I2C.

OR

a) Explain the modes of operation of serial port.b) Write the features of USB.

UNIT - III

Q4) a) Explain different components of embedded system.b) Explain memory management of embedded system.

ORa) Write about scheduling algorithms.b) Discuss different OS security issues.

UNIT - IV

Q5) a) Explain the mechanism of automatic vending machine.b) Explain interrupt service mechanism.

OR

a) Explain different types of device drivers.b) Explain different issues involved in designing embedded system.

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b.tech. degree examination, may - 2013 · pdf file... write the applications of...

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