Innovative application of satellite remote sensing technology

Satellite remote sensing technology is a comprehensive technology observation technology. For a long time, it has been used in water conservancy hydrology, geology, soil, environment, agricultural and forestry and other fields. In recent years, with the evolution of remote sensing carrying tools and photography measurement technology, the development of spatial technology and information technology, and human beings have also greatly improved the ability to obtain geographical space information through remote sensing technology.

The remote sensing was once explained as "distant perception". It is indeed the case. The remote sensing technology is an electromagnetic Potoma that obtains the target from the distance through the platform sensor without direct contact with the target object, and then analyzes and determines the obtained information. , Treatment, reveal the comprehensive detection technology of the nature of objects and its changes.

The types of remote sensing can be divided into land resource remote sensing, marine remote sensing and meteorological remote sensing from the target. From the height, remote sensing can be divided into aviation remote sensing and satellite remote sensing. The difference between the difference between the two is height. The height of aviation remote sensing is generally between 3000 meters and 5000 meters, and the height of satellite remote sensing is generally 500 kilometers to 900 kilometers.

The emergence of remote sensing satellite technology has solved the problem of traditional land measurement, shifted from static to real -time earth observation, and was widely used into many fields such as transportation, communication, meteorology, and exploration. For example, in the field of environmental monitoring, satellite remote sensing technology has played an incomparable role. Environmental satellites have a variety of advanced remote sensing detection equipment such as optical, hot infrared, and super spectrum. These equipment are conducive to the large -scale, fast and dynamic ecological environment monitoring and evaluation of the environmental protection department, and track the occurrence and development of some emergencies. Greatly improve the ability to monitor and grasp the national ecological environment macro trends. my country ’s remote sensing technology has made a lot of aspects of emergency environmental incidents such as cyanobacteria, as well as satellite remote sensing inspection and monitoring of satellite remote sensing inspections, and regional environmental air pollution monitoring of rural straw incineration pollution in the country. Time and detailed work.

With the continuous development of computer technology, photoelectric technology, and aerospace technology, satellite remote sensing technology is entering a new stage and application research that can provide a variety of local observation of massive data and application research in a timely manner.

(Yao Wang)

Knowledge expansion:

Artificial satellites are unmanned spacecraft running around the earth on the space track. Artificial satellites basically move around the earth in accordance with the laws of celestial physical mechanics, but due to the influence of non -spherical earth gravitational fields, atmospheric resistance, solar gravity, moon gravitational and optical pressure on different tracks, the actual movement is very complicated. Artificial satellites are spacecrafts with the most launch, the most widely used, and the fastest -developed spacecraft. The number of artificial satellites accounts for more than 90%of the total number of spacecraft launch.

Reprinted: Shaanxi Science and Technology News

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