Traditional Culture Encyclopedia - Photography major - What are the five parts of the remote sensing system?
What are the five parts of the remote sensing system?
1, the information characteristics of the measured target.
2. Access to information.
3. Transmission and recording of information.
4. Information processing.
5. Application of information.
Remote sensing system consists of platform, sensing, receiving and processing application subsystems. Responsible for the whole process of collection, transmission, correction, conversion and processing of electromagnetic radiation of the detection object. That is, the electromagnetic wave characteristics of matter and environment are converted into images or digital forms.
Remote sensing is a new technology developed on the basis of aerial photography, which was developed in the early 1960s. Started for aerial remote sensing, since 1972, the United States launched the first land satellite, marking the beginning of the era of space remote sensing. After decades of rapid development, by the beginning of 2 1 century, remote sensing technology has been widely used in the fields of resources and environment, hydrology, meteorology, geology and geography, and has become a practical and advanced space exploration technology.
Characteristics of remote sensing
1, large-area synchronous observation
The higher the remote sensing platform, the wider the viewing angle and the wider the detectable ground area.
Step 2 be timely
The speed of obtaining information is fast, the period is short and the timeliness is strong.
3. Comprehensive and comparable data.
The obtained data comprehensively reflects a large amount of natural and human information on the earth, and the data sources are continuous and comparable.
4. Economy
Compared with traditional methods, it has higher economic and social benefits.
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