Journal ArticleDOI
Error analysis of optical range measurement systems
H.C. Salwen
- Vol. 58, Iss: 10, pp 1741-1745
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TLDR
In this paper, the relationship between the tracker characteristics, the characteristics of the received signal and background radiation, and the measurement accuracy is determined, based on the assumption that the transmitted pulse duration is short compared to the delay fluctuations induced by at least one of these three effects.Abstract:
The ranging error of short pulse optical tracking systems is investigated. The relationships between the tracker characteristics, the characteristics of the received signal and background radiation, and the measurement accuracy are determined. It is found that the effects of characteristics of the tracker, the propagating medium, and/or the target to be tracked will predominate in the derived accuracy expressions. This result is based on the assumption that the transmitted pulse duration is short compared to the delay fluctuations induced by at least one of these three effects.read more
Citations
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Journal ArticleDOI
Laser altimetry measurements from aircraft and spacecraft
TL;DR: The techniques involved in the design and application of laser altimeter instruments are reviewed in this article, including a description of the instrument subsystems required for the range and waveform measurements.
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Analysis of Range Measurements From a Pulsed Airborne $ \hbox{CO}_{2}$ Integrated Path Differential Absorption Lidar
TL;DR: A ranging algorithm for the airborne IPDA lidar designed at the NASA Goddard Space Flight Center is adapted and tested, and a quasi-maximum-likelihood method is applied, using cross correlation, to estimate the range from the lidar's 1-wide echo pulses.
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Correction for errors in optical pulsed range measurements.
TL;DR: It is shown that corrections for range errors can be described as a linear combination of the atmospheric correction, the spatial correction, and the corrections for the errors in electrical circuits.
Journal ArticleDOI
High-Precision CO2 Column Length Analysis on the Basis of a 1.57-μm Dual-Wavelength IPDA Lidar
TL;DR: An airborne experiment carried out in a sea area near Qinhuangdao, China on 14 March 2019 showed that the ranging accuracy can reach 0.9066 m, which achieved an excellent ranging accuracy on 1.57-μm IPDA Lidar and met the requirement for high-precision CO2 column length inversion.
Journal ArticleDOI
Optical pulsed ranging: effect of atmospheric scintillation on measurement accuracy
TL;DR: In this article, the effect of atmospheric turbulence on the accuracy of optical pulsed range measurements is investigated assuming a Poisson detection process and log normal scintillation, and numerically evaluated for various optical Gaussian pulse shapes.