Rapid beamsteering reflectarrays for mm-wave and submm-wave imaging radars
| Autor: | P. Rantakari, Paivi Koivisto, Arttu Luukanen, Pekka Pursula, Jussi Säily, Aleksi Tamminen, Juha Ala-Laurinaho, Markku Sipilä, Janne Häkli, David Gomes Martins, Reijo Tuovinen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Diffraction
Image formation control electronics diffractive optics high voltage switch Computer science business.industry electronic beam steering submillimetre-wave imaging Frame (networking) Beam steering CMOS ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Ranging Frame rate reflectarray Adaptive RF systems Optics THz imaging Radar imaging Transceiver business hologram |
| Zdroj: | Luukanen, A, Ala-Laurinaho, J, Gomes Martins, D, Häkli, J, Koivisto, P, Pursula, P, Rantakari, P, Säily, J, Tamminen, A, Tuovinen, R & Sipilä, M 2011, Rapid beamsteering reflectarrays for mm-wave and submm-wave imaging radars . in Passive Millimeter-Wave Imaging Technology XIV ., 80220M, International Society for Optics and Photonics SPIE, Proceedings of SPIE, vol. 8022, SPIE Defense, Security, and Sensing. Passive Millimeter-Wave Imaging Technology XIV, Orlando, FL, United States, 28/04/11 . https://doi.org/10.1117/12.887068 |
| Popis: | Recent developments in millimetre to submillimetre-wave imaging radars with excellent ranging resolution provide an attractive route towards stand-off imaging of concealed explosives at ranges up to several tens of meters. Present systems typically rely on only one transceiver, coupled with an optomechanical scanning system for image formation. This limits the image acquisition speed to several seconds/frame. Frame rate can in principle be increased with increasing the channel count but this adds substantially to the system complexity and cost, while only providing a modest speed increase. In this paper we present preliminary designs for rapid electronic beam steering system that could provide a way towards real-time millimetre-wave to submillimetre-wave imaging radars. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|