Mr. Yu Gu Profile

Yu Gu

at Electronic Engineering Institute

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Proceedings Article | 15 October 2015 Paper

Study on feasibility of laser reflective tomography with satellite-accompany

Yu Gu, Yi-hua Hu, Shi-qi Hao, You-lin Gu, Nan-xiang Zhao, Yang-yang Wang

Proceedings Volume 9674, 96742T (2015) https://doi.org/10.1117/12.2202763

KEYWORDS: Satellites, Tomography, Reflectivity, Satellite imaging, Imaging systems, Ultrasound reflection tomography, Target detection, Laser applications, LIDAR, Pulsed laser operation

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Laser reflective tomography is a long-range, high-resolution active detection technology, whose advantage is that the spatial resolution is unrelated with the imaging distance. Accompany satellite is a specific satellite around the target spacecraft with encircling movement. When using the accompany satellite to detect the target aircraft, multi-angle echo data can be obtained with the application of reflective tomography imaging. The feasibility of such detection working mode was studied in this article. Accompany orbit model was established with horizontal circular fleet and the parameters of accompany flight was defined. The simulation of satellite-to-satellite reflective tomography imaging with satellite-accompany was carried out. The operating mode of reflective tomographic data acquisition from monostatic laser radar was discussed and designed. The flight period, which equals to the all direction received data consuming time, is one of the important accompany flight parameters. The azimuth angle determines the plane of image formation while the elevation angle determines the projection direction. Both of the azimuth and elevation angles guide the satellite attitude stability controller in order to point the laser radar spot on the target. The influences of distance between accompany satellite and target satellite on tomographic imaging consuming time was analyzed. The influences of flight period, azimuth angle and elevation angle on tomographic imaging were analyzed as well. Simulation results showed that the satellite-accompany laser reflective tomography is a feasible and effective method to the satellite-to-satellite detection.

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