What is Lidar mapping?
Lidar mapping is a technology of precise terrain measurement that uses laser reflection analysis and time delay to develop precise surface modeling. Sometimes it is referred to as a laser radar, but the radar depends on the reflection of the radio waves, while Lidar relies on light detection and to the range of height measurement. It can be used from helicopters and aircraft with fixed wing or ground systems. The speed of light is constant, measured against laser pulses and reflections to determine the increase. Lidar produces almost infrared spectral data at night and day that can map the terrain despite above -ground elements such as trees or structures.
Lidar mapping includes any field in which the terrain contour mapping is necessary. Sciences such as archeology, geology and geography use technology. Seismology and atmospheric physics benefit from the sensitivity of Lidar to fluctuating atmospheric factors. Lidar is used in mapping of floodplain dandruff, in calculating the front nest of biomass st, mappingTransport and urban modeling. The bare land of Lidar reveals the basic characteristics of the terrain, while the data of the reflex surface of Lidar increases the analysis in urban planning and visualization. Lidar mapping usually uses the emission technology and laser detection, scanning and control mechanics, global positioning system (GPS) and inertial measurement (IMU) unit. They calculate the exact xyz -targeted reflective surface coordinates. Other components can consist of a high -precision timer, a high -performance computer and a high -capacity data recording device.
Another key difference between Lidar and radar mapping is the distinction. Unlike radar, narrow beams allows high-rating, accurate reflections. Three -dimensional topographic images can be drawn from data files that illustrate many chemical compounds more clearly due to their vicinity visible spectrum. The shorter wavelengths of Lidar make the technology keyThe tool in the analysis of aerosols and cloud particles in meteorology and atmospheric research. By combining different types of lasers in remote mapping, it is possible to measure fine changes in the intensity of atmospheric phenomena depending on wavelengths.
Finding the laser range provides three -dimensional models of surfaces or structural elements such as buildings, trees and natural boundaries. Lidar mapping relies not only on multiple lasers, but also on more time effects to measure the first and last reflections to give low and high points. This provides data on excessive altitude of functions. While Lidar cannot penetrate the canopies on the trees, enough laser data will find the way through breaks in foliage to measure distance to the ground. Other applications include promoting operations using speed weapons for vehicle, physics and astronomy, various environmental sciences and land or property surveys.