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Tuesday, 24 July 2012

Remote sensing and image interpretation-for B.E/B.Tech –model question paper


1(a) What are the basic components of an ideal remote sensing system? Explain. (10 Marks)
(b) Write a note on Stefan-Boltzmann law. (4 Marks)
(c) Explain in detail the interaction of energy with the surface of earth. (6 Marks)
2(a) Explain the working of a densitometer with the help of a figure. (6 Marks)
(b) Write a note on aerial film cameras. (6 Marks)
(c) Explain the term multiband imaging. (4 Marks)
(d) A film is properly exposed when the lens aperture setting is f/8 and the exposure time is 1/125 sec. If the lens aperture setting is changed to f/4, and the scene brightness does not change, what exposure time should be used to yield a proper film exposure? (4 Marks)
3 (a) Explain in detail basic geometric characteristics of aerial photographs. (12 Marks)
(b) Write a note on orthophotos. (4 Marks)
(c) The area of a well is 12 cm2 on a 1: 2000 vertical photograph. Find the ground area of the well.  (4 Marks)
4(a) Explain geological mapping and soil mapping. (8 Marks)
(b) Write a note on natural disaster assessment. (6 Marks)
(c) Differentiate between intrusive igneous rocks and extrusive igneous rocks. (6 Marks)
5 (a) Explain the working of an airbone multispectral scanner. (6 Marks)
(b) Draw blackbody radiation spectrum and explain it using various laws. (10 Marks)
(c) What is internal blackbody source referencing? (4 Marks)
6 (a) Write and explain Elachi’s formula for the period of a satellite. (4 Marks)
(b) Write a note on Landsat satellite program of NASA. (8 Marks)
(c) What are hyperspectral satellite systems? (4 Marks)
(d) Write a brief note on MODIS sensor. (4 Marks)
7(a) Explain biophysics modeling. (4 Marks)
(b) What is level slicing? (4 Marks)
(c) Write a detailed note on classification of mixed pixels. (6 Marks)
(d) Write a note on different forms of multitemporal data merging. (6 Marks)
8(a) Explain the working of a synthetic aperture RADAR. (6 Marks)
(b) What is radar image speckle? (4 Marks)
(C) Write a nte on shuttle radar topography mission. (6 Marks)
(d) A given SLAR system transmits pulses over duration of 0.1 microseconds. Find the range resolution of the system at a depression angle of 45 degrees. (4 Marks)

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