In a real aperture radar system that the azimuthal resolution inversely proportional to antenna length l great improvement in azimuth resolution could be realized. Initially cameras were used to take photographs on the ground, which provided and still does a fascinating and exciting way to capture moments in time and keep a record of something that happened, which looked more realistic than a. The sun is the major source of energy, radiation and illumination. Ppt remote sensing basics powerpoint presentation free to. Synthetic aperture radar sar remote sensing basics and. Electromagnetic radiation emr basics for remote sensing handouts objectives. The rscc is primarily geared towards university level education but some lessons may be suitable for k. Ppt remote sensing basics powerpoint presentation free. Most often we refer to aerial photography or satellite imaging as remote sensing for precision agriculture. Introduction to satellite remote sensing for air quality. Remote sensing began in the 1860s as balloonists took pictures of the earths surface. The main topics discussed in the listed documents include. As this profession rides through the wild west stage of drone use, many practitioners dont even know they are producing garbage and trust that because the ruler says good to 2 cm that their mapping products are inherently that accurate.
Sar basics, backscatter, geometry, interferometry, polarimetry, sar data, data acquisition, available data sets. Apr 18, 2009 definitions remote sensing can be defined as the acquisition and recording of information about anobject without being indirect contact with that object. Basics of capacitive sensing and applications davidwang abstract capacitive sensing is becoming a popular technology to replace optical detection methods and mechanical designs for applications like proximitygesture detection, material analysis, and liquid level sensing. If you havent already, please check out my previous post that summarizes my capstone project from general assemblys data science immersive course. This presentation can help you to quickly understand basics and concepts of remote sensing. Remote sensing is a technique to observe the earth surface or the atmosphere from out of space using satellites space borne or from the air using aircrafts airborne.
Principles of remote sensing shefali aggarwal photogrammetry and remote sensing division indian institute of remote sensing, dehra dun abstract. Bhattacharya 6 advantages compared to optical remote sensing all weather capability small sensitivity of clouds, light rain day and night operation independence of sun illumination no effects of atmospheric constituents multitemporal analysis sensitivity to dielectric properties water content, biomass, ice. Remote sensing basics course overview, imagery, and. Basics of remote sensing for agricultural applications introduction when farmers or ranchers observe their fields or pastures to assess their condition without physically touching them, it is a form of remote sensing. Remote sensing applications the authors have carefully structured and organized the book to introduce readers to the basics, and then move on to more advanced applications.
Feb 25, 2019 it is a good introduction to some of my interests in machine learning, remote sensing, and ecology and a good preface to this article. Remote sensing technologies measure the energy that is reflected or emitted from plants or soil. Remote sensing, process of obtaining information about land, water, or an object withoutany physical contact between the sensor and the subject of analysis. Basics of capacitive sensing and applications davidwang abstract capacitive sensing is becoming a popular technology to replace optical detection methods and mechanical designs for applications like proximitygesture detection. Oct 16, 2014 are you looking to get up to speed with the basics of remote sensing. This is done by sensing and recording of reflected and emitted energy. The satellite sensor in this case records primarily the radiation that is reflected from the target. Depending on what is source of energy, remote sensing is classified into 2 types.
Visible to humans light is one segment of the energy that can be observed. The adage certainly applies with drones and remote sensing. Remote sensing ppt remote sensing infrared free 30. In the process of remote sensing involves an interaction between the incoming radiation and interest of target. Intro to gis and remote sensing linkedin slideshare. Scribd is the worlds largest social reading and publishing site. Principles of remote sensing and mapping using drones. At any given moment our sun is bombarding the earth with a variety of wavelengths of emr, including visible light, infrared, radio and microwaves. Following an introduction, chapter 2 sets forth the basic properties of electromagnetic waves and their interactions with matter. If we just look at satellite imagery, we can predict agricultural yields across regions, assess forest health, and determine available water in lakes and reservoirs. A major advance in radar remote sensing has been the improvement in azimuth resolution through the development of synthetic aperture radar sar systems.
Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects. Passive detection sensors measure levels of energy that are naturally emitted, reflected, or transmitted by the target object. Worlds best powerpoint templates crystalgraphics offers more powerpoint templates than anyone else in the world, with over 4 million to choose from. Basics, data processing, applications garik gutman nasa headquarters washington, dc usa. In a lidar system, light is emitted from a rapidly firing laser. As humans, we are intimately familiar with remote sensing in that we rely on visual perception to provide us with much of the information about our surroundings. Basics of remote sensing for agricultural applications. Remote sensing ppt remote sensing infrared free 30day.
Remote sensing introduction to image classification. One observe a subsidence of about 6 cm 2 fringes which. In passive remote sensing sun is the main source of energy. Know basics of remote sensing quickly and become expert.
Jan 08, 2019 depending on what is source of energy, remote sensing is classified into 2 types. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that. Image analysis is the science of interpreting speci. September 3, 2007 lecture d1la1 introduction to sar remote sensing thuy le toan impact of a geothermal plant on the environment. Humans with the aid of their eyes, noses, and ears are constantly seeing, smelling, and hearing things from. Jan 27, 2006 remote sensing applications the authors have carefully structured and organized the book to introduce readers to the basics, and then move on to more advanced applications. Initially cameras were used to take photographs on the ground, which provided and still does a fascinating and exciting way to capture moments in time and keep a record of something that happened, which looked more realistic than a drawing or painting. Note, however that remote sensing also involves the sensing of emitted energy and the use of nonimaging sensors. Comparison to maps, gis, aerial photography photogrammetry, sonar 10. Remote sensing uses instruments or sensors to view the spectral and spatial relations of observable objects and materials at a distance, typically from above them. The process of remote sensing, its principles, platforms and sensors are discussed.
Example of humans senses are sight, sound, smell, touch and taste. The basics of lidar light detection and ranging remote. The canada centre for mapping and earth observation formerly canada centre for remote sensing is pleased to offer this tutorial on remote sensing technology and its applications. Out of our senses, three of these are remote senses. Ppt introduction to remote sensing powerpoint presentation. The rscc is intended to provide a knowledgebase of theory and techniques to advance the understanding and use of remote sensing and geospatial science. For example sun is the most powerful and commonly used source of energy for passive remote sensing. This beam of light hits the earth and is reflected back to the sensor, which records the time it took for the beam of light to return. Assistant professor department of geography mangaldaimangaldai collegecollege email. Remote sensing basics course overview, imagery, and raster.
Passive remote sensing depends on a natural source to provide energy. This interactive module is intended as an overview at a senior high school or early university level and touches on physics, environmental sciences, mathematics. Remote sensing, like the rest of gis, has applications across the spectrum. Remote sensing is the art and science of acquiring information about the earth surface without having any physical contact with it.
Winner of the standing ovation award for best powerpoint templates from presentations magazine. The fringes characterize the ground subsidence around the plant. Electromagnetic radiation emr basics for remote sensing. A sensor detects physical variations in the world, e. If you continue browsing the site, you agree to the use of cookies on this website. We emphasize that remote sensing systems of various kinds are the most widely used tools for gathering information about earth, the planets, and the stars.
Prados university of maryland baltimore county jcet, baltimore, md nasa goddard space flight center, greenbelt, md a free powerpoint ppt presentation displayed as a flash slide show on id. As sensors, however, our eyes are greatly limited by. In case of active remote sensing, an external source of energy is used for remote sensing. Synthetic aperture radar sar remote sensing basics and applications this post will provide an overview of the basics of synthetic aperture radar sar and applications. Our new crystalgraphics chart and diagram slides for powerpoint is a collection of over impressively designed datadriven chart and editable diagram s guaranteed to impress any audience. The presentation is about the basics of remote sensing. This webinar by russ congalton of unh and nhview will provide an introduction to remote sensing fundamentals including. The technology of modern remote sensing has a very long history, dating back to the end of the 19th century with the invention of the camera. Remote sensing rs system capture radiation in different wavelength. An active system means that the system itself generates energy in this case, light to measure things on the ground. However, we need to consider visible light as only part of broader spectrum of electromagnetic energy. It also shows the position and relationship between objects and geographic.
Remote sensing basic processes data acquisition energy. Fundamentals of remote sensing and its applications in gis. Jan 31, 2011 an introduction to the basics of a gis and remote sensing. Remote sensing for precision agriculture is a collection of technologies that attempt to emulate that process. This light travels to the ground and reflects off of. Remote sensing is defined as the science and technology by which characteristics of objects of interest can be identified without direct contact concept of remote sensing earth observation from space and air remote sensing is a technology to observe objects size, shape and character without direct contact with them. Examples of human senses are sight, sound, smell, touch and taste. Mar 02, 2018 the adage certainly applies with drones and remote sensing. Remote sensing data is one of the primary data sources in gis analysis. Definitions remote sensing can be defined as the acquisition and recording of information about anobject without being indirect contact with that object. What is remote sensing basics, introduction and components.
Interferogram processed from two ers images, acquired at two years interval. The presentation talks about its need and who uses remote sensing. Remote sensing produces images of a much larger area of the earths surface than a person on the ground can photograph. Theyll give your presentations a professional, memorable appearance the kind of sophisticated look that todays audiences expect. A sensor detects physical variations in the world, for example light, temperature, radio waves, sound and magnetic fields. The four types of resolutions spatial, spectral, temporal and radiometric are also discussed. It is a good introduction to some of my interests in machine learning, remote sensing, and ecology and a good preface. Energy resources, energy interactions with earth surface features and atmosphere, resolution, sensors and satellite visual interpretation techniques, basic elements, converging evidence, interpretation for terrain evaluation, spectral properties of water bodies, introduction to digital data analysis.
Humans with the aid of their eyes, noses, and ears are constantly seeing, smelling, and hearing things from a distance as they move through an environment. Pigeon fleets were another form of remote sensing in the early years. These technologies collect information about the plants in the field from a distance, without being in physical contact. Apr 29, 2017 synthetic aperture radar sar remote sensing basics and applications this post will provide an overview of the basics of synthetic aperture radar sar and applications.
Lidar or light detection and ranging is an active remote sensing system that can be used to measure vegetation height across wide areas. Fundamentals of remote sensing introduction natural resources. For those intending to pursue graduate studies in remote sensing, this book serves as an overview and introduction, so that the basic concepts of all topics science, technology and. Remote sensing is a technology for sampling electromagnetic radiation to acquire and interpret nonimmediate geospatial data from which to extract information about features and objects on the earths land surface, oceans, and atmosphere dr. Introduction many multispectral mss systems sense radiation in the thermal infrared as well as the visible and reflected infrared portions of the spectrum. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. History of remote sensing the invention of photography in 1839 made remote sensing eventually possible. Fundamentals of remote sensingfundamentals of remote sensing pranjit kr sarma ph dpranjit kr.
Remote sensing is the science and art of acquiring and analyzing information about objects or phenomena from a distance. Introduction to the physics and techniques of remote sensing. An introduction to the basics of a gis and remote sensing. Remote sensing is the art and science of recording, measuring, and analyzing information about a phenomenon from a distance. You can imagine light quickly strobing from a laser light source. A presentation on remote sensing by aswathy babu paul. Remote sensing measurements represented as a series of digital numbers the larger this number, the higher the radiometric resolution, and the sharper the imagery spectral bands and resolution for various sensors cimss. This page will introduce fundamental lidar or lidar concepts including. Are you looking to get up to speed with the basics of remote sensing. Observing the colors of leaves or the overall appearances of plants can determine the plants condition.
380 1091 1291 397 207 120 925 125 95 496 1303 1124 679 796 483 882 349 789 883 1273 4 1180 648 1050 438 36 66 1244 898 146 384 754 662 1297 378 745 1343 620 1405 335 621 968 467