Synthetic Aperture Radar (SAR) uses a small antenna to move rapidly along the trajectory of a long linear array and radiate coherent microwave signals, and coherently process echoes received at different positions to obtain higher spatial resolution imaging radar. On the contrary, military radars placing on ground need large antenna to get high resolution.
As an active sensor, synthetic aperture radar has the characteristics of achieving all-day, all-weather ground observation without being restricted by light and climatic conditions, and can even obtain its cover information through the ground or vegetation. These characteristics make it has potential to be widely used in agriculture, forestry, water or geological and natural disasters. With Interference SAR, the deformation of large area ground surface and dams can be quickly and easily measured.
Aerial photogrammetry is generally low altitude flight, which is easy to operate in airspace and will not be affected by extreme weather. At the same time, it is not limited to the needs of take-off and landing sites. It only needs to select a relatively flat site for take-off and landin...
As we all know, aerial photogrammetry technology is playing an increasingly important role in urban planning and construction. Moreover, compared with the traditional topographic survey technology, aerial photogrammetry technology has the advantages of small volume, light weight, ra...
After the LiDAR data is obtained, the data can be post-processed only after data preprocessing. After the data preprocessing, there is a data checking software to conduct a preliminary check on the data results. The general data format check has the follo