remote sensing and image interpretation
Remote sensing call any methods used to define the distinguishing features of an object in the distance. In identifying archaeological sites such technique are primarily photographic and other similar means of identifying features and features that are considered characteristic of a certain type of monuments or objects. Remote sensing can be very effective in the study of large areas of land that can not be covered by traditional field survey methods.
The most common form of archeology in remote sensing is the use of aerial photography. Usually use vertical shoot (straight down perpendicular to the ground), but in some cases, a shot-aligned (at an angle to the earth’s surface). The detail in images depends primarily on the height of the camera and on the properties of film used. So, shooting from a low altitude usually allow you to show more detail than a picture taken with an artificial satellite.
Ground penetrating radar to modern radar designed to Address a wide range of targets. Comparative compactness and mobility to perform non-destructive control environment with high details make it unique among geophysical equipment -rental cost. Find georadar used very widely in different areas of human activity: Geology-geological sections, building and determine the position of the water.
ground penetrating radar (gpr) systems
Profiling provides a vertical sectional view of the subsurface environment along the path of measurement in real time. However, the role of the vertical coordinate performs during the pulse to travel from the transmitter to the boundary of the reflecting object and then to the receiving antenna. To convert this “temporary cut” in the real depth is necessary to estimate the velocity of propagation of electromagnetic waves in the environment and take into account the location of the point of reflection about the antenna device.
Propagation velocity of the probe pulse needed to assess the real depth of the objects can be found directly from the temporary cut in the presence of local or on the track linearly extended across the road subsurface object forming at radarogram characteristic hyperbolic trail. Solution corresponding asymptotes of the hyperbola depends on the speed of wave propagation in the medium. Function determining the speed of propagation of electromagnetic waves in a medium according to the diffraction image of a hyperbolic local object in the device has not been implemented and it is expected to available software systems GPR data processing on a computer…Read Post