&lt;title&gt;LADAR scene projector for hardware-in-the-loop testing&lt;/title&gt;

Cornell, Michael C.; Naumann, Charles B.; Stockbridge, Robert G.; Snyder, Donald R.

doi:10.1117/12.474721

Cited by 3 publications

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“…Hardware-in-the-loop (HWIL) simulation is an effective approach for testing and evaluation in the development of LiDAR guidance system [5]- [10]. It can overcome the disadvantages of outfield test, e.g.…”

Section: Introductionmentioning

confidence: 99%

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A Programmable All-Optical Delay Array for Light Detection and Ranging Scene Generation

et al. 2019

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Light detection and ranging (LiDAR) scene generator is an important device in the LiDAR guidance hardware-in-the-loop (HWIL) simulation system. It generates simulated optical LiDAR scenes under laboratory conditions. A simulated LiDAR scene consists of an array of laser return signals with different intensities and time delays. The intensity of a return signal is determined by the target albedo and the target distance. The time delay of a return signal is determined by the target distance. A time delay array system is crucial for the LiDAR scene generation. In this paper, a programmable all-optical delay array system using an optical true-time-delay (OTTD) method is proposed. It can generate laser return signals with large-signal array size, long delay range, and high delay resolution. The signal array size of the generated LiDAR scene is 32 × 32. The depth of field (DOF) of the LiDAR scene is 19.2 m, which can be placed at different distances from 5.1 to 2481.6 m. The distance resolution is 0.3 m. The all-optical delay array system can also be extended to support tests of the LiDAR guidance systems with larger sensor arrays.

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Section: Introductionmentioning

confidence: 99%

“…Currently, researchers mainly use electronic time delay system to generate return signals with different time delays [5]- [10], as shown in Fig. 4.…”

Section: Introductionmentioning

confidence: 99%

A Programmable All-Optical Delay Array for Light Detection and Ranging Scene Generation

et al. 2019

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Ladar scene projector for a hardware-in-the-loop simulation system

Wang

Tian

et al. 2016

Appl. Opt.

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In order to test a direct-detection ladar in a hardware-in-the-loop simulation system, a ladar scene projector is proposed. A model based on the ladar range equation is developed to calculate the profile of the ladar return signal. The influences of both the atmosphere and the target's surface properties are considered. The insertion delays of different channels of the ladar scene projector are investigated and compensated for. A target range image with 108 pixels is generated. The simulation range is from 0 to 15 km, the range resolution is 1.04 m, the range error is 1.28 cm, and the peak-valley error for different channels is 15 cm.

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Modeling method of a ladar scene projector based on physically based rendering technology

Gao

Wang

et al. 2018

Appl. Opt.

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<title>LADAR scene projector for hardware-in-the-loop testing</title>

Cited by 3 publications

References 0 publications

A Programmable All-Optical Delay Array for Light Detection and Ranging Scene Generation

A Programmable All-Optical Delay Array for Light Detection and Ranging Scene Generation

Ladar scene projector for a hardware-in-the-loop simulation system

Modeling method of a ladar scene projector based on physically based rendering technology

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