期刊名称:ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN:2194-9042
电子版ISSN:2194-9050
出版年度:2008
卷号:XXXVII Part B5
页码:1067-1072
出版社:Copernicus Publications
摘要:This paper deals with component calibration of a terrestrial laser scanner Faro LS880 HE80. The calibration is based on relative distance measurements and is focused on the distance measuring component of the scanner. The measurement range of 1-30 meters was divided into two parts according to the used sampling interval, and observations were compared to the results obtained with a robot tacheometer. The differences were analyzed by using Fourier transform techniques. The wavelengths, which yielded large amplitudes in the frequency space, were observed. The Fourier series yielded an error function for the relative distances measured with the laser scanner. The results indicated that the relative distance measurements were biased by both constant and periodic non- linear error, which we were able to correct using Fourier analysis. We also observed that the wavelengths of detected periodic errors often correlated with the wavelengths of the modulation frequencies of the instrument, or their harmonics