Simulation of error in optical radar range measurements

Sandor Der, Brian Redman, and Rama Chellappa

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Sandor Der, Brian Redman, and Rama Chellappa, "Simulation of error in optical radar range measurements," Appl. Opt. 36, 6869-6874 (1997)

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Abstract

We describe a computer simulation of atmospheric and target effects on the accuracy of range measurements using pulsed laser radars with p-i-n or avalanche photodiodes for direct detection. The computer simulation produces simulated images as a function of a wide variety of atmospheric, target, and sensor parameters for laser radars with range accuracies smaller than the pulse width. The simulation allows arbitrary target geometries and simulates speckle, turbulence, and near-field and far-field effects. We compare simulation results with actual range error data collected in field tests.

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Equations (41)

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Location	x = 0.1	x = -0.05	x = 0.0	x = -0.05	x = 0.1
y = 0.1	0.003	0.014	0.022	0.014	0.003
y = 0.05	0.014	0.059	0.095	0.059	0.014
y = 0.0	0.022	0.095	0.154	0.095	0.022
y = -0.05	0.014	0.059	0.095	0.059	0.014
y = -0.1	0.003	0.014	0.022	0.014	0.003

Laser Type	Nd:YAG
Wavelenght	1.574 µm
Beam divergence	125 µrad
Pulse width	10 ns
Pulse energy	250 µJ

Location	x = 0.1	x = -0.05	x = 0.0	x = -0.05	x = 0.1
y = 0.1	0.003	0.014	0.022	0.014	0.003
y = 0.05	0.014	0.059	0.095	0.059	0.014
y = 0.0	0.022	0.095	0.154	0.095	0.022
y = -0.05	0.014	0.059	0.095	0.059	0.014
y = -0.1	0.003	0.014	0.022	0.014	0.003

Laser Type	Nd:YAG
Wavelenght	1.574 µm
Beam divergence	125 µrad
Pulse width	10 ns
Pulse energy	250 µJ

Simulation of error in optical radar range measurements

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Abstract

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Figures (6)

Tables (2)

Equations (41)

Applied Optics