Lasers, Fiber Optics, and Communications

Simulation of two-dimensional target motion based on a liquid crystal beam steering method

[+] Author Affiliations
Yixiang Lin

Wuhan University, Electronic Information School, Luojia Hill, Wuchang District, Wuhan 430072, China

Yong Ai

Wuhan University, Electronic Information School, Luojia Hill, Wuchang District, Wuhan 430072, China

Collaborative Innovation Center of Geospatial Technology, 129 Luoyu Road, Wuhan 430079, China

Xin Shan

Wuhan University, Electronic Information School, Luojia Hill, Wuchang District, Wuhan 430072, China

Collaborative Innovation Center of Geospatial Technology, 129 Luoyu Road, Wuhan 430079, China

Science and Technology Electro-Optic Control Laboratory, 25 Kaixuan West Road, Luoyang 471000, China

Min Liu

Science and Technology Electro-Optic Control Laboratory, 25 Kaixuan West Road, Luoyang 471000, China

Opt. Eng. 54(5), 056102 (May 13, 2015). doi:10.1117/1.OE.54.5.056102
History: Received March 4, 2015; Accepted April 15, 2015
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Abstract.  A simulation platform is established for target motion using a liquid crystal (LC) spatial light modulator as a nonmechanical beam steering control device. By controlling the period and orientation of the phase grating generated by the spatial light modulator, the platform realizes two-dimensional (2-D) beam steering using a single LC device. The zenith and azimuth angle range from 0 deg to 2.89 deg and from 0 deg to 360 deg, respectively, with control resolution of 0.0226 deg and 0.0300 deg, respectively. The response time of the beam steering is always less than 0.04 s, irrespective of steering angle. Three typical aircraft tracks are imitated to evaluate the performance of the simulation platform. The correlation coefficients between the theoretical and simulated motions are larger than 0.9822. Results show that it is highly feasible to realize 2-D target motion simulation using the LC spatial light modulator.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Yixiang Lin ; Yong Ai ; Xin Shan and Min Liu
"Simulation of two-dimensional target motion based on a liquid crystal beam steering method", Opt. Eng. 54(5), 056102 (May 13, 2015). ; http://dx.doi.org/10.1117/1.OE.54.5.056102


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