Document Type : Research Paper

Author

• Majid Hamrah

Member of Faculty, K.N. Toosi University of Technology

Abstract

Although in the past centuries humans have used ground observations and direct presence on the site to study their environment, in the present century by conquering space by humans these studies are being carried out through space. Since humankind has been able to overcome the gravity of the earth and to separate from the surface of the earth, his imagination and observations concerning the information on the earth has changed. He studies and controls phenomena remotely from space, and from this point spatial remote sensing begins. Investigating phenomena while standing on the earth certainly has limitations. Spacecraft remote sensing features include comprehensive vision. Today in space remote sensing we inherit technology and transformations that thousands of people have made in their efforts to achieve this possibility, and even lost their lives in this way. The history of spatial remote sensing is full of successes and frustrations. In this article, we first look at the past developments of spatial remote sensing and then examine its outlook in the 1990s.

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