Precise range estimation on known surfaces by analysis of fullwaveform laser

Laser range data analysis is of high interest in photogrammetry. Rangeestimation for complex surface structures can be inaccurate. To overcome this drawback a method using a laser scanner capable offull-waveform analysis is proposed. For analysis the transmitted waveform of the emitted pulse is used to estimate thereceived waveform of the backscattered pulse for a known surface.We simulated a plane surface with different slopes and a sphere. Typicalspatial beam distributions are considered for modeling, namely Gaussian and uniform. The surface response is determined andthe corresponding received waveform is calculated. The normalized cross-correlation function in between the simulated andthe measured waveform is used for precise range measurement.Additionally the position on the surface can be determined.     «

Laser range data analysis is of high interest in photogrammetry. Rangeestimation for complex surface structures can be inaccurate. To overcome this drawback a method using a laser scanner capable offull-waveform analysis is proposed. For analysis the transmitted waveform of the emitted pulse is used to estimate thereceived waveform of the backscattered pulse for a known surface.We simulated a plane surface with different slopes and a sphere. Typicalspatial beam distributions are considered for m...     »