REMOTE SENSING SYSTEM Mirza Muhammad Waqar Contact mirza
- Slides: 12
REMOTE SENSING SYSTEM Mirza Muhammad Waqar Contact: mirza. waqar@ist. edu. pk +92 -21 -34650765 -79 EXT: 2257 RG 610 Course: Introduction to RS & DIP
Outlines Remote Sensing System � � � The Energy Source The Atmosphere The Energy-Matter Interaction at the Earth’s Surface The Sensor The data processing and supply system The multiple data users An ideal Remote Sensing System
Remote Sensing & Satellite Image Processing
The Energy Source Active Remote Sensing => Own source of energy Passive Remote Sensing => Sun Energy Solar energy level varies w. r. t time and location. For active remote sensing => Control on illumination. Sun energy is non-uniform w. r. t wavelength.
The Atmosphere The atmosphere normally compounds the problems introduced by energy source variations. Modify the strength and spectral distribution received by the sensor. Define the wavelength ranges in which we can do remote sensing.
Energy-Matter Interaction at Earth Surface Remote Sensing would be simple if every material reflected or emitted energy in a unique, known way.
The Sensor No single sensor is sensitive to all wavelength. � Ideal supersensor How small an object on the earth can be seen. � Spatial Resolution All real sensors have fixed limits of spectral sensitivity.
Data Processing & Supply Unit Manual Image Processing Digital Image Processing
Multiple Data Users 1. 2. 3. 4. 5. Urban Planner Policy Makers Engineers Environmentalists Glaciologists
An Ideal Remote Sensing System A Uniform Energy Source A noninterfering Atmosphere A Series of unique energy-matter interaction at Earth’s surface A supersensor A real Time data Processing and Supply System Multiple data users
An Ideal Remote Sensing System
Questions & Discussion
- Advantages of remote sensing
- Idealized remote sensing system
- Energy transfer
- Remote sensing platforms
- Passive remote sensing
- Digital number in remote sensing
- Limitations of remote sensing
- Gis definition ap human geography
- Remote sensing ap human
- Parallax bar
- Strip camera in remote sensing
- Remote sensing image
- Ifov and fov in remote sensing