Radiometric and spatial resolution constraints in millimeter-mave close-range passive screener systems
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessRestricted access - publisher's policy
This paper presents a comparative study of the radiometric sensitivity and spatial resolution of three near-field (NF) passive screener systems: real aperture, 1-D synthetic aperture (SA), and 2-D SA radiometers are compared. The analytical expressions for the radiometric resolution, the number of required antennas, and the number of pixels in the image are derived taking into account the distortion produced by the NF geometry at nonboresight directions where the distortion is dominant. Based on the theoretical results, a performance comparison among the studied systems is carried out to show the advantages and drawbacks when using the radiometers in a close-range screening application. Moreover, the screener performance in a close-range environment is discussed from the results obtained in the aforementioned comparison.
CitationNova, E. [et al.]. Radiometric and spatial resolution constraints in millimeter-mave close-range passive screener systems. "IEEE transactions on geoscience and remote sensing", Abril 2013, vol. 51, núm. 4, p. 2327-2336.
- ANTENNALAB - Grup d'Antenes i Sistemes Radio - Articles de revista 
- RSLAB - Remote Sensing Research Group - Articles de revista 
- Departament de Teoria del Senyal i Comunicacions - Articles de revista 
- CTE-CRAE - Grup de Recerca en Ciències i Tecnologies de l'Espai - Articles de revista 
|2013_TGRS_06307842.pdf||Paper TGRS||1.437Mb||Restricted access|