&lt;title&gt;Three-dimensional laser radar modeling&lt;/title&gt;

Steinvall, Ove; Carlsson, Tomas

doi:10.1117/12.440110

Cited by 17 publications

(12 citation statements)

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“…It depends on surface slope and microscopic properties. For more details about target reflection, it can be found in reference [5,6,7]. In order to simplify the simulation process, assuming the surface reflectance is constant term, which independent of the incidence angle.…”

Section: Target Reflectionmentioning

confidence: 99%

Echo signal modeling of imaging LADAR target simulator

Shi

Wang

et al. 2014

SPIE Proceedings

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LADAR guidance technology is one of the most promising precision guidance technologies. In the aim of simulating the return waveform of the target, a 3D geometrical model of a target is built and mathematical model of target echo signal for imaging LADAR target simulator is established by using the coordinate transformation, radar equation and ranging equation. First, the 3D geometrical data of the object model is obtained by 3D geometrical modeling. Then, target coordinate system and viewpoint coordinate system are created respectively. 3D geometrical model is built in the target coordinate system. The 3D geometrical model is transformed to the viewpoint coordinate system based on the derived relationship between the two coordinate systems. Furthermore, the range information of the target could be obtained under viewpoint coordinate system. Thus, the data of the target echo signal can be obtained by using radar equation and ranging equation. Finally, the echo signal can be exported through corresponding data interface. In order to validate the method proposed in this paper, the echo signal generated by a typical target is computed and compared with the theory solutions. The signals can be applied to drive target simulator to generate a physical target LADAR image.

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Section: Target Reflectionmentioning

confidence: 99%

Echo signal modeling of imaging LADAR target simulator

Shi

Wang

et al. 2014

SPIE Proceedings

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“…To enable an interpretation of the measured waveform of a backscattered pulse, understanding the physical background of pulse propagation and surface interaction is necessary (Der et al, 1997;Jutzi et al, 2002;Steinvall and Carlsson, 2001;Wagner et al, 2004Wagner et al, , 2006. Especially in the case of multiple backscatters, the received waveform may be complex.…”

Section: Introductionmentioning

confidence: 98%

Range determination with waveform recording laser systems using a Wiener Filter

Jutzi

Stilla²

2006

ISPRS Journal of Photogrammetry and Remote Sensing

178

125

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“…This process is divided into four parts, as shown in Fig. 1 [38]. The laser beam energy distribution is described first in both temporal and spatial domains …”

Section: Simulation Of Laser Beam Propagationmentioning

confidence: 99%

“…1 The division of the process during simulation. Figure adapted from [34,38] 3D Res (2017) 8:31 Page 3 of 16 31…”

Section: Atmospheric Effectsmentioning

confidence: 99%

“…More advanced and complex models [13,17,35,38,48,49], can be used to simulate the propagation of the laser beam, for example, from laser energy distribution to atmospheric effects and beam interaction models, to receiver optics and received signal processing electronics models. However, this study is focusses on evaluating the processing speed of the Fig.…”

Section: Ladar Receivermentioning

confidence: 99%

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The Development of a 3D LADAR Simulator Based on a Fast Target Impulse Response Generation Approach

Al-Temeemy

2017

3D Res

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A new laser detection and ranging (LADAR) simulator has been developed, using MATLAB and its graphical user interface, to simulate direct detection time of flight LADAR systems, and to produce 3D simulated scanning images under a wide variety of conditions. This simulator models each stage from the laser source to data generation and can be considered as an efficient simulation tool to use when developing LADAR systems and their data processing algorithms. The novel approach proposed for this simulator is to generate the actual target impulse response. This approach is fast and able to deal with high scanning requirements without losing the fidelity that accompanies increments in speed. This leads to a more efficient LADAR simulator and opens up the possibility for simulating LADAR beam propagation more accurately by using a large number of laser footprint samples. The approach is to select only the parts of the target that lie in the laser beam angular field by mathematically deriving the required equations and calculating the target angular ranges. The performance of the new simulator has been evaluated under different scanning conditions, the results showing significant increments in processing speeds in comparison to conventional approaches, which are also used in this study as a point of comparison for the results. The results also show the simulator's ability to simulate phenomena related to the scanning process, for example, type of noise, scanning resolution and laser beam width.

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<title>Three-dimensional laser radar modeling</title>

Cited by 17 publications

References 0 publications

Echo signal modeling of imaging LADAR target simulator

Echo signal modeling of imaging LADAR target simulator

Range determination with waveform recording laser systems using a Wiener Filter

The Development of a 3D LADAR Simulator Based on a Fast Target Impulse Response Generation Approach

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