نتایج جستجو برای: waveform lidar
تعداد نتایج: 29800 فیلتر نتایج به سال:
The hyperspectral full-waveform LiDAR (HSL) system based on the supercontinuum laser can obtain spatial and spectral information of target synchronously outperform traditional or imaging spectrometers in classification other applications. However, low detection efficiency caused by useless background points (ULBG) hinders its practical applications, especially when is small compared with large ...
This paper proposes an energy-barycenter-based waveform centroid algorithm (EWCA) for a high-precision Lidar ranging system. Firstly, the emission and echo pulse models of system are established. Secondly, based on analyzing merits demerits conventional (CWCA) intensity-weighted discrimination (IWCD). Moreover, combined with characteristics energy moment distribution, adaptive strategy is used ...
The airborne lidar system has been shown to be an effective and reliable method for spatial data collection. Lidar records the coordinates of point and intensity, dependent on range, incident angle, reflectivity of object, atmospheric condition, and several external factors. To fully utilize the intensity of a lidar system, several researchers have proposed correction models from lidar equation...
The main principle of remote sensing LiDAR is to send a laser pulse from a transmitter and to analyze the backscattered signal (in particular its largest amplitude) to reconstruct the 3D position of the encountered objects (to which the intensity of the wave is generally associated). Using airborne LiDAR, it is possible to obtain a series of 3D positions whose analysis is extremely interesting ...
Radiometric calibration of the Dual-Wavelength Echidna(®) Lidar (DWEL), a full-waveform terrestrial laser scanner with two simultaneously-pulsing infrared lasers at 1064 nm and 1548 nm, provides accurate dual-wavelength apparent reflectance (ρ(app)), a physically-defined value that is related to the radiative and structural characteristics of scanned targets and independent of range and instrum...
Data storage capacity and high processing speed available today has made it possible to digitally sample and store the entire reflected waveform of Small-Footprint Airborne Lidar (light detection and ranging), instead of only extracting the discrete coordinates which form the so-called point clouds. One of the most important advantages from waveforms data is that it gives the user the chance to...
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