Near field 3-D scene simulation for passive microwave imaging

Cheng Zhang; Ji Wu

doi:10.1117/12.712586

28 October 2006 Near field 3D scene simulation for passive microwave imaging

Cheng Zhang, Ji Wu

Proceedings Volume 6419, Geoinformatics 2006: Remotely Sensed Data and Information; 641902 (2006) https://doi.org/10.1117/12.712586
Event: Geoinformatics 2006: GNSS and Integrated Geospatial Applications, 2006, Wuhan, China

Abstract

Scene simulation is a necessary work in near field passive microwave remote sensing. A 3-D scene simulation model of microwave radiometric imaging based on ray tracing method is present in this paper. The essential influencing factors and general requirements are considered in this model such as the rough surface radiation, the sky radiation witch act as the uppermost illuminator in out door circumstance, the polarization rotation of the temperature rays caused by multiple reflections, and the antenna point spread function witch determines the resolution of the model final outputs. Using this model we simulate a virtual scene and analyzed the appeared microwave radiometric phenomenology, at last two real scenes of building and airstrip were simulated for validating the model. The comparison between the simulation and field measurements indicates that this model is completely feasible in practice. Furthermore, we analyzed the signatures of model outputs, and achieved some underlying phenomenology of microwave radiation witch is deferent with that in optical and infrared bands.

Citation Download Citation

Cheng Zhang and Ji Wu "Near field 3D scene simulation for passive microwave imaging", Proc. SPIE 6419, Geoinformatics 2006: Remotely Sensed Data and Information, 641902 (28 October 2006); https://doi.org/10.1117/12.712586

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