Comparison of 905 nm and 1550 nm semiconductor laser rangefinders’ performance deterioration due to adverse environmental conditions
By J. Wojtanowski, M. Zygmunt, M. Kaszczuk, Z. Mierczyk, M. Muzal. 2014
134 citations recorded by the source corpus.
Laser rangefinder performance (i.e., maximum range) is strongly affected by environment due to visibility-dependent laser attenuation in the atmosphere and target reflectivity variations induced by surface condition changes (dry vs. wet). Both factors have their unique spectral features which means that rangefinders operating at different wavelengths are affected by specific environmental changes in a different way. Current state of the art TOF (time of flight) semiconductor laser rangefinders are based mainly on two wavelengths: 905 nm and 1550 nm, which results from atmospheric transmission windows and availability of high power pulsed sources. The paper discusses the scope of maximum range degradation of hypothetical 0.9 μm and 1.5 μm rangefinders due to selected water-related environmental effects. Atmospheric extinction spectra were adapted from Standard Atmosphere Model and reflectance fingerprints of various materials have been measured. It is not the aim of the paper to determine in general which wavelength is superior for laser range finding, since a number of criteria could be considered, but to verify their susceptibility to adverse environmental conditions.
Subfields: Global and Planetary Change, Instrumentation, Ophthalmology
View Paper: https://www.semanticscholar.org/paper/a37746bf6c95a8f0fb59cfec1031451623e8dda9
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Citations in the corpus
- A Systematic Review of Perception System and Simulators for Autonomous Vehicles Research (2019, methodology): “This initial disadv ntage of power incre se at 1550 nm is used y the aqueous liquid of the eye to totally filter this wavelength, making them less harmful than LiDAR at 905 nm [10].”
- An Overview of Autonomous Vehicles Sensors and Their Vulnerability to Weather Conditions (2021, unknown): “The distance to the reflection point may be calculated by using this electronically measured round-trip ToF (∆t) [13], as indicated in Equations (2) and (3):”
- Sensor and Sensor Fusion Technology in Autonomous Vehicles: A Review (2021, background): “A study in reference [53] found that the 905nm systems are much capable of providing higher resolution of point clouds in adverse weather conditions like fog and rains.”