Ppt on remote sensing system
- 3. Presented by BCA-3A (Kreatipedia )
- 4. The gathering of information from an object or surface without direct contact.
- 5. Lithosphere Biosphere Remote Sensor Reflecting surfaces
- 6. 1858 Balloonist G.Tournachon made photographs of paris from his balloon. Systematic aerial photography developed for military and reconnaissance purposes beginning in World War I and reaching a climax during the Cold War Artificial satellites in the latter half of the 20th century
- 7. Passive Remote Sensing Photography Radiometers Infrared Active Remote Sensing RADAR LiDAR
- 8. Geology Environmental monitoring Commercial forestry Reconnaissance mapping
- 9. Forestry Agriculture Hydrology Sea Ice Land Cover & Land Use
- 11. Spectral Signatures Image Acquisition Spatial Resolution Spectral Resolution Multispectral Images Radiometric Resolution
- 12. signatures produced by wavelength-dependent absorption the ratio of reflected energy to incident energy as a function
- 13. radiant energy that is measured by an aerial or satellite sensor electromagnetic energy returned from the Earth’s surface can be detected by a light-sensitive film
- 14. a function of the design of the sensor detectors in a remote sensor measures energy received from a finite patch of the ground surface
- 15. Parallel sensor arrays detecting radiation in a small number of broad wavelength bands allow discrimination of different types of : vegetation, rocks and soils, clear and turbid water, and some man-made materials
- 16. Quantized incoming energy analyze the numerical values in the bands of a multispectral image
- 17. High Resolutions Low Resolution
- 18. Optical System Panchromatic imaging system Multispectral imaging system Super spectral Imaging System Hyper spectral Imaging System RADAR System LiDAR System
- 19. Optical remote sensing makes use of visible, near infrared and short-wave infrared sensors to form images of the earth's surface by detecting the solar radiation reflected from targets on the ground.
- 20. A single channel sensor is used to detect radiation If range of wavelength and the visible range become same then the imagery will appear as a black and white photograph taken from space
- 21. Uses a multi channel detector and records radiation with a narrow range Brightness and color informatics are available
- 22. Finer spectral feature that capture by the sensors .
- 23. RAdio Detection And Ranging Object detection system which uses electromagnetic waves determine range, direction or speed
- 24. Detect the presence of an object at a distance Detect the speed of an object Map something Echo Doppler Shift
- 25. Light Detection And Ranging Measures distance by sending pulses of laser light that strike and reflect from the surface of earth.
- 26. http://www.howstuffworks.com/radar.htm http://www.google.co.in/#sclient=psy-ab&hl=en&source=hp&q=radiometric+resolution+of+remote+sennsing&psj=1&oq=radiometric+resolution+of+remote+sennsing&aq=f&aqi=&aql=&gs_sm=e&gs_upl=550721l558445l1l558664l24l23l1l0l0l18l900l12399l4-10.9.3l22l0&bav=on.2,or.r_gc.r_pw.&fp=4df500c34198b13e&biw=1280&bih=869 http://www.crisp.nus.edu.sg/~research/tutorial/image.htm http://www.google.co.in/search?tbm=isch&hl=en&source=hp&biw=1280&bih=869&q=Active+remote+sensing&gbv=2&oq=Active+remote+sensing&aq=f&aqi=g1&aql=&gs_sm=e&gs_upl=9704l15125l0l15442l21l18l0l8l8l0l770l2764l5-2.2l4l0#hl=en&gbv=2&tbm=isch&sa=1&q=spatial+resolution+in+remote+sensing&oq=spatial+resolution+in+remote+sensing&aq=f&aqi=&aql=&gs_sm=e&gs_upl=75737l79409l6l79639l18l13l0l0l0l8l900l4886l4-1.6.1l8l0&bav=on.2,or.r_gc.r_pw.&fp=37c75e80de715eb4&biw=1280&bih=869