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Temporal electrical response of chiral smectic liquid crystal displays with V/W-shaped electrooptical characteristic

100%

Pena J. M. S. , Pérez I. , Urruchi J. , Torres J. C. , Otón J. M.

tom Vol. 16, No. 2

189-193

Chiral smectic liquid crystal cells showing V-shaped electrooptical switching have been reported as one of the most promising technologies for high-end display applications. In this work, time-resolved electrical behaviour of these devices has been obtained through a set of systematic measurements. The electrical equivalent circuit has been derived, a number of simulations at different frequencies have been performed using commercial software for analogue circuits. Performance of this electrical model to account for time domain variations of switching currents in chiral smectic LC displays with V/W-shaped electrooptical response has been analyzed as well.

AHS and CASI Processing for the REFLEX Remote Sensing Campaign : Methods and Results

86%

Miguel E. d. , Jiménez M. , Pérez I. , Cámara Ó. G. d. l. , Muñoz F. , Gómez-Sánchez J. A.

tom Vol. 63, no. 6

1485--1498

The airborne spectroradiometers AHS and CASI were used as a source of hyperspectral and thermal remote sensing data during the REFLEX campaign. Data geolocation and a first simple atmospheric correction was performed by INTA in near-real time with a specific on-site setup and distributed to all campaign participants. In this paper we present briefly the AHS and CASI REFLEX flight campaign followed by a detailed description of the methodology used for image processing and finally the results obtained in terms of image quality. As a conclusion, near-real time processing for AHS and CASI level 1 geolocated products was successful as most of CASI level 2 results but further work is needed for achieving accurate AHS level 2 products.