Remote sensing

Post on 20-May-2015

3.716 views 1 download

Tags:

Transcript of Remote sensing

REMOTE SENSING TECHNOLOGY

Submitted By:-Nishant ChaturvediMCA Vth SemMCA-554

Submitted to:-Mrs. Preeti TiwariSr.Asst.ProfessorISIM Jaipur

History

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.

Aerial Photos

Balloon photography (1858)

Kite photography (1890)

Pigeon cameras (1903)

Aircraft (WWI and WWII)

Space (1947)

REMOTE SENSING SYSTEMThe gathering of information from an object or surface

without direct contact.

Energy Source or Illumination (A)

Radiation and the Atmosphere (B)

Interaction with the Target (C)

Recording of Energy by the Sensor (D)

Transmission, Reception, and Processing (E)

Interpretation and Analysis (F)

Application (G)

Remote Sensing Process Components

Types

Passive Remote Sensing

Photography Radiometers

Active Remote Sensing

RADAR LiDAR

Resolution Techniques

Spatial Resolution

Spectral Resolution

High vs. Low?

Spatial Resolution

SpectralResolution

System Used

Optical System

Panchromatic imaging system Multispectral imaging system Super spectral Imaging System Hyper spectral Imaging System

RADAR System

LiDAR System

Optical Remote SystemOptical 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.

Panchromatic Imaging SystemA single channel sensor is used to detect radiationIf range of wavelength and the visible range become

same then the imagery will appear as a black and white photograph taken from space

Multispectral Imaging SystemUses a multi channel detector and records radiation

with a narrow range

Brightness and color informatics are available

Super Spectral Imaging SystemFiner spectral feature that capture by the sensors.

RADAR SystemRadio Detection And RangingObject detection system which uses electromagnetic

waves determine range, direction or speed

LiDAR SystemLight Detection And RangingMeasures distance by sending pulses of laser light that

strike and reflect from the surface of earth.

Application Area

Forestry

Agriculture

Hydrology

Sea Ice

Land Cover & Land Use