Full-waveform echo tomography radar target reconstruction modeling and simulation

Biao Yang; Yihua Hu; Jinying Tang

doi:10.1117/12.2503958

12 December 2018 Full-waveform echo tomography radar target reconstruction modeling and simulation

Biao Yang, Yihua Hu, Jinying Tang

Proceedings Volume 10846, Optical Sensing and Imaging Technologies and Applications; 108460T (2018) https://doi.org/10.1117/12.2503958
Event: International Symposium on Optoelectronic Technology and Application 2018, 2018, Beijing, China

Abstract

The reconstruction of laser reflection tomography target reconstruction is an important part of the laser reflection tomography radar target detection technology.But currently the acquisition of imaging data for laser reflection tomography mainly stays in the laboratory test acquisition phase, for the complete slave laser pulse. There are still gaps in the comprehensive simulation of the complete process of launch propagation, laser and target effects, acceptance of echo data, and target reconstruction. In this paper, based on the above problems, studying the problem of large computational complexity firstly when the sub-rays and the bins are successively intersected. Proposed a fast intersection algorithm based on the boundary of the laser beam, which improves the computational efficiency. Secondly, based on the spatio-temporal distribution characteristics of the lidar signal, the response function of the detection target to the signal is deduced, and the action process model of the two is established. Based on the above key technologies, a target reconstruction simulation system based on laser reflection tomography was constructed. Finally, according to the effect of different sampling intervals and different detection angles on the reconstructed image quality, a contrast simulation experiment was conducted. The image back-propagation algorithm was used to complete the reconstruction of the target 2D contour under different conditions.

Citation Download Citation

Biao Yang, Yihua Hu, and Jinying Tang "Full-waveform echo tomography radar target reconstruction modeling and simulation", Proc. SPIE 10846, Optical Sensing and Imaging Technologies and Applications, 108460T (12 December 2018); https://doi.org/10.1117/12.2503958

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KEYWORDS

Target detection

Ultrasound reflection tomography

Signal detection

Pulsed laser operation

LIDAR

Optical simulations

Signal processing

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