Translator Disclaimer
Presentation + Paper
14 May 2019 Generalization of active radar imaging and passive imaging models applied to wide band terahertz array imaging systems
Author Affiliations +
Abstract
System solutions for commercial applications such as autonomous driving, augmented reality, medical imaging, and security imaging, exploit active illumination. In these applications, the active source is used to provide photons but also to code and decode relevant information such as range or spectral response. The wavelengths of choice range from visible to millimeter waves depending on the application and associated requirements. Across these wavelengths, the targets range from Lambertian to specular. For single element and scanned systems, ranging is commonly modeled using conventions borrowed from the radar and antenna community. Staring and scanning systems that facilitate resolution in the cross-range are modeled using conventions borrowed from the synthetic aperture radar community or the passive imaging community. All the borrowed conventions, however, make assumptions about the size and nature of the target in relationship to the illumination and wavelength, unresolved versus resolved and Lambertian versus specular. These assumptions are relevant for the calculation of system signal to noise ratio and resolution; therefore, they should be carefully considered when adopting the conventions. Examples of systems where modeling falls between active radar and passive imaging include wide band Terahertz array imaging systems and solid state lidar systems. This paper generalizes and bridges the models used by the active radar community and the passive imaging community. We apply the model to a wide band terahertz array imaging system enabled by terahertz array technology recently developed at imec. The model is validated using simulated measurements from a two-dimensional terahertz array.
Conference Presentation
© (2019) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Orges Furxhi, Lei Zhang, and Ronald Driggers "Generalization of active radar imaging and passive imaging models applied to wide band terahertz array imaging systems", Proc. SPIE 11001, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXX, 110010H (14 May 2019); https://doi.org/10.1117/12.2519683
PROCEEDINGS
12 PAGES + PRESENTATION

SHARE
Advertisement
Advertisement
RELATED CONTENT

Staring target edge tracking
Proceedings of SPIE (April 10 1995)
Staring target edge tracking
Proceedings of SPIE (August 18 1995)
Modeling and optimal design of optical remote sensing payloads
Proceedings of SPIE (September 27 2007)

Back to Top