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Remote Sensing Platforms
Remote Sensing And Geographic Information System Applications (GL 223)
University of Kerala
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REMOTE SENSING PLATFORMS
Remote sensing is the process of learning details about an object without ever touching it. And a "sensor" is a tool that aids in information collection (amount of EMR emitted or reflected by the object). In other terms, a "sensor" is a distant sensing system that logs energy wavelengths. Typically, a "platform" is used to install or fix these sensors. Consequently, a vehicle that contains a remote sensing device is referred to as a "platform."
PLATFORMS
Platform is a platform on which a sensor or camera is positioned to gather data about a target that is being investigated. A platform, in the words of Lillesand and Kiefer (2000), is a machine from which a sensor can be controlled. Stepladders and satellites are just two examples of platforms. Platforms come in a variety of shapes and sizes, and they can be grouped according to how high they are above the earth's surface.
Ground-Based Platforms Remote sensing uses a variety of ground-based platforms. Common ones include handheld gadgets, tripods, towers, and cranes. A ground-based platform is used to investigate the characteristics of a single plant or a small area of grass. Additionally, ground-based platforms (either handheld or tripod-mounted) are employed for sensor calibration, quality assurance, and the creation of novel sensors.
Balloon Platforms As platforms, balloons are less expensive than aircraft. They come in a wide range of forms, dimensions, and functionalities. Moderate vibrations, no power requirement, and low acceleration are all characteristics of the balloons. Free balloons, tethered balloons, and powered balloons are the three primary categories of balloon systems. Since free balloons can almost reach the top of the atmosphere, they can offer a platform at a height in between that of aircraft and that of spacecraft. With an altitude range of 22–40 km, free-floating or moored balloons can only be used to a limited extent as a platform. It is helpful for testing the equipment that is being developed as well as for probing the atmosphere.
Aircraft Platforms Stable wing aircraft make up the majority of aerial platforms. This occasionally also involves the employment of helicopters. Aircraft are typically employed to gather extremely detailed photographs. Although they can be used for precise positioning, helicopters shake and lack stability.
a) Low Altitude Aircraft: It typically works below 30,000 feet and is most commonly employed there. Single or light twin engines are available. It is appropriate for getting large-scale image data for small locations.
Remote Sensing Platforms
Course: Remote Sensing And Geographic Information System Applications (GL 223)
University: University of Kerala
