Simulation of synthetic aperture imaging ladar (SAIL) for three-dimensional target model

Ning Yi; Zhen-Sen Wu

doi:10.1117/12.869809

Abstract

In conventional imaging laser radar, the resolution of target is constrained by the diffraction-limited, which includes the beamwidth of the laser in the target plane and the telescope's aperture. Synthetic aperture imaging Ladar (SAIL) is an imaging technique which employs aperture synthesis with coherent laser radar, the resolution is determined by the total frequency spread of the source and is independent of range, so can achieve fine resolution in long range. Ray tracing is utilized here to obtain two-dimensional scattering properties from three-dimensional geometric model of actual target, and range-doppler algorithm is used for synthetic aperture process in laser image simulation. The results show that the SAIL can support better resolution.

Citation Download Citation

Ning Yi, Ning Yi, Zhen-Sen Wu, Zhen-Sen Wu, } "Simulation of synthetic aperture imaging ladar (SAIL) for three-dimensional target model", Proc. SPIE 7850, Optoelectronic Imaging and Multimedia Technology, 78501K (9 November 2010); doi: 10.1117/12.869809; https://doi.org/10.1117/12.869809

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