Remote sensing is derived from the sonar technology extension of science and technology, from the broad perspective, is refers to from the Angle of the remote sense, although can't directly contact can also detect the relevant technology. If through the concrete analysis, through the remote sensing radiation of electromagnetic wave feedback drawing into the reality of a comprehensive analysis, through the records in the form of electromagnetic wave, can record all the received signal, and the ability to make a series of data analysis and processing, finally forming analysis diagram is also a response to a clear understanding of the brain, the generation of the image, can explain dynamic out the true nature of things and the situation of the development of internal things. From outer space and remote sensing technology is to realize integrated test case on the ground can be used by the assembly technology, the technology of work center link are implemented through a series of comprehensive processing link, analysis is provided according to the analysis of graphic changes every time and form, is a dynamic process of analysis of remote sensing technology is a set up space, information technology and optical transmission and other related disciplines, this technology is an advanced scientific theory, is also a kind of comprehensive technical data, the level of the technology is a world leading level, have do not have the advantages of the previous technology, able to quickly transfer dynamic information in time, Information have multilayer the technical theory of various characteristics. At present, the information technology in social development speed is fast, remote sensing technology has been widely used in aerospace and other high-end industry and gradually improve, for the service of humanity is no longer a single direction, remote sensing technology in recognised by the social development at the same time also has received the attention. Of social value is and its wide, not only can produce economic benefits, at the same time to drive the rapid development of science and technology.
The transmission of vibration is called wave. Electromagnetic vibration is the spread of electromagnetic waves. According to the electromagnetic wave band from short to long wavelength can, in turn, can be divided into: gamma rays, x-rays, ultraviolet, visible, infrared, microwaves and radio waves. The shorter the wavelength of electromagnetic wave penetrating the stronger. Remote sensing detection by using electromagnetic wave wavelength from ultraviolet, visible, infrared to the microwave spectrum. Light emitted from the sun as the electromagnetic radiation source, it is also a kind of electromagnetic wave. Sunlight reaching the earth's surface from space must be through the earth's atmosphere. When sunlight through the atmosphere, are influenced by the atmosphere of the absorption and scattering sunlight, due to physical and chemical characteristics of every kind of object and the wavelength of incident light is different, so they have different reflectance of incident light. Objects of the law of the incident light reflection is called reflection spectrum of the object. Is to detect remote sensing remote sensing instrument is acceptable to the target of electromagnetic wave information and in comparison with the spectral reflectance of the object, which can be on the ground object recognition and classification. This is adopted by the basic principle of remote sensing.
Remote sensing technology in the fields of human society to application, in order to promote the technology research of professionals for the remote sensing technology, people according to the classification of remote sensing technology to wake the application, mainly for the following categories:
According to carry sensor platform for the remote sensing classification based on remote sensing detection using remote sensing remote sensing platform can be classified into the ground remote sensing and remote sensing.
Classification by remote sensing detection way of working According to work in a different way of remote sensing detection of remote sensing can be classified into active and passive remote sensing remote sensing.
Classification by remote sensing detection work according to the working band of the remote sensing detection of remote sensing can be classified into different ultraviolet, infrared remote sensing, microwave remote sensing, remote sensing multispectral remote sensing.
According to the application field of remote sensing detection classification according to the application field of remote sensing detection, remote sensing from the perspective of macro research can be classified into outer space remote sensing remote sensing, land, atmosphere, ocean remote sensing remote sensing etc. Remote sensing application from microscopic Angle can be classified into: military remote sensing, remote sensing geological remote sensing, resource, environment, surveying and mapping of remote sensing, remote sensing meteorological remote sensing, hydrological remote sensing, agriculture, forestry, fishery remote sensing remote sensing remote sensing, remote sensing and urban disaster remote sensing, etc.
Remote sensing is the use of space equipment as one kind of integrated information platform based on remote sensing technology. In the practical work in the actual remote sensing, according to the actual application demand is different, the selection of sensor will be different, build the kiosk on the ground, via satellite data is needed to obtain the latest data information. And can also use professional remote sensing image processing procedures, for relevant procedures, in order to realize the information in the form size, space and plane transformation of a variety of ways, can be combined with a map, and finally develop the space needed to aspects of the remote sensing images.
Airborne remote sensing refers to the aircraft such as planes, airship, hot air balloon as sensor bearing platform of remote sensing technology. According to the different application purpose, choose different sensors, such as: aerial camera, multispectral scanner, thermal infrared scanners, CCD camera, etc., to obtain the required information includes: air photograph and scanning data. The graphics applications generally includes two aspects:
First of all, in the field of surveying and mapping, photogrammetry is from theory to practice is very mature discipline. The principle and method of photogrammetric surveying and mapping is applied in our country has a long history of topographic maps. At present, 1:50 below 00 and small scale topographic map surveying and mapping, basically all the photogrammetry method for measuring. Secondly, the orthogonal projection has both features like figure is a note, scalability and other characteristics of the conventional topographic map information with rich intuitive image as a datum, that will be the center of the navigation photograph projection by mechanical or digital correcting into form of orthographic projection image maps are generated.
Remote sensing technology in the planning and construction of the city not only has important technical support role, at the same time because, in the field of aviation remote sensing mapping way and in the field of space remote sensing mapping way the rapid development of technology, has been able to help society in multiple ways to achieve the comprehensive technical support, it can not only promote the development of human society, at the same time also become an important digital information age range.
With the globalization of information technology application, the development of the digital information age has become the main form, combined with the present domestic information development situation, and the rest of the world of science and technology information development, a comprehensive analysis of the development of the digital information technology as the center of the current work. In terms of domestic situation, the digital informatization construction plan has become a focus recently, emerged in every field of social advanced the concept of digital information. With the emergence of remote sensing technology and application in the field of society, not only can realize non-contact technology, but also through a series of technical means of information processing, information, processing, and information receiving process. Through full text for remote sensing principle and classification of remote sensing technology is introduced, and the mapping of remote sensing data of space mapping mode and mapping mode in detail, respectively. Hope to be able to help with related to readers.