Application of Golay codes to improve SNR in coarray based synthetic aperture imaging systems

Autor:	Montserrat Parrilla-Romero, C.J. Martín-Arguedas, David Romero-Laorden, Óscar Martínez-Graullera
Jazyk:	angličtina
Rok vydání:	2012
Předmět:	Beamforming Synthetic aperture radar Dynamic range Image quality business.industry Computer science Optics Binary Golay code Synthetic aperture imaging GEUS Electronic engineering Golay Coarrays business SAFT Coding (social sciences) Data reduction
Zdroj:	SAM Digital.CSIC. Repositorio Institucional del CSIC instname
ISSN:	2010-1937
Popis:	Minimum redundancy synthetic aperture solutions (based on the coarray concept) are usually limited by poor signal to noise ratio. The use of pulse coding based on Golay codes can help in order to improve the signal to noise-ratio. Two solutions (2R-SAFT and 4R-SAFT) for data reduction in the beamforming process of multi-element synthetic aperture imaging are used here to reduce the system’s architecture, cost and requisites. Alongside with the application of Golay codes it is experimentally demonstrated the improvement of the dynamic range and SNR, achieving an image quality comparable to the Total Focusing Method and establishing its use for suitable real-time medical applications. This work has been supported by the Spanish Ministry of Economy and Competitiveness under the project DPI2010-19376 and the grant BES-2008-008675.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::158214c7ae5f02831ae44fd9ec2a74f5 http://hdl.handle.net/10261/51428 Zobrazit plný text záznamu