TOPSAR is a recently proposed SAR mode for wide swath acquisition, which is intended to replace the conventional ScanSAR mode. TOPSAR will be used by the ESA Sentinel-1 SAR sensor in its main interferometric wide swath mode. TerraSAR-X has demonstrated the TOPSAR mode in space by acquiring and processing TOPSAR images for the first time. The paper reports the results of the image scalloping ana...

ion. Journal of Experimental Psychology: Human Learning & Memory, 7 , 397–417. Elio, R., & Anderson, J. R. (1984). The effects of information order and learning mode on schema abstraction. Memory & Cognition, 12, 20–30.ion. Memory & Cognition, 12, 20–30. Ellis, N. C. (2002). Frequency effects in language processing: A review with implications for theories of implicit and explicit language acqui...

In this paper, we present and analyze a technique for fast acquisition and accurate tracking of the carrier frequency in orthogonal frequency division multiplexing (OFDM) receivers. The scheme is based on a data-aided frequency estimation algorithm recently proposed in the literature by the authors. The presence of known symbol sequences periodically inserted in the OFDM frame allows the data d...

This work focuses on an issue situated at the intersection of two domains: the oral mode of communication vs. the written mode of communication, and language acquisition. The backbone of this research is a conjecture that, for some age groups (babies, toddlers and preschool-aged children), to explore the acquisition of discourse as a whole (including gestures, facial expressions, prosody, pause...

The impact of spectral filtration in digital ('cine') acquisition was investigated using a flat panel cardiac interventional X-ray imaging system. A 0.1-mm copper (Cu) and 1.0-mm aluminium (Al) filter added to the standard acquisition mode created the filtered mode for comparison. Image sequences of 35 patients were acquired, a double-blind subjective image quality assessment was completed and ...

Department of Physics, University of Pisa and INFN, Pisa, Italy The development of MRI compatible detectors based on compact solid state photomultipliers has recently led to simultaneous fully integrated PET/MRI systems for human imaging. The PET acquisition design for MRI integration is known to have several additional constraints, including smaller space, electromagnetic compatibility issues ...

This article describes the design and some results of implementation of a distributed computing data acquisition and processing system being developed by the Computer technology and system department of Vladivostok State University (Russian Federation). The system is designed to provide data acquisition, processing, and storage in distributed heterogeneous environments. Some of the system’s com...