Results 151 to 160 of about 54,321 (199)

On Ambiguities in Super-Resolution Modeling

IEEE Signal Processing Letters, 2004
Some models for super-resolution restoration assume that low-resolution (LR) images are formed from high-resolution (HR) ones by a warping first, blurring second (followed by decimating) imaging process; whereas others adopt a blurring first, warping second imaging constraint.
Zhaozhong Wang, Feihu Qi
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Ambiguity resolution for permanent scatterer interferometry

IEEE Transactions on Geoscience and Remote Sensing, 2004
In the permanent scatterer technique of synthetic aperture radar interferometry, there is a need for an efficient and reliable nonlinear parameter inversion algorithm that includes estimation of the phase cycle ambiguities. Present techniques make use of a direct search of the solution space, treating the observations as deterministic and equally ...
Bert M. Kampes, Ramon F. Hanssen
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An ambiguity resolution algorithm

1994
Compilers for object-oriented languages must traverse an inheritance graph to locate the class to which an attribute belongs. The algorithm presented in this paper performs the ambiguity resolution check in one single traversal of the inheritance graph.
Chandra Shrivastava, Doris L. Carver, Rajendra Shrivastava   +2 more
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Resolution of ambiguity in parsing

Acta Informatica, 1976
The use of context-free grammars to define the syntax of programming languages is complicated by the phenomenon of ambiguity. Ambiguity can be resolved by the specification of a unique canonical parse. A set of rules is given which defines a canonical bottom-up parse, and these rules are implemented in a left-to-right bottom-up parsing algorithm.
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Frequency ambiguity resolution in OFDM systems

IEEE Communications Letters, 2000
In orthogonal frequency division multiplexing systems, the carrier-frequency offset can be divided into two parts: (1) an integer one-multiple of the subcarrier spacing 1/T and (2) a fractional one-less than 1/2T in amplitude. Some schemes proposed in the literature can only recover the fractional part.
MORELLI, MICHELE, D'ANDREA, NUNZIO ALDO, MENGALI, UMBERTO   +2 more
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Resolution of interferometric ambiguities

IEEE Antennas and Propagation Society International Symposium. Transmitting Waves of Progress to the Next Millennium. 2000 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.00CH37118), 2002
A new technique is described to resolve the ambiguities of wide field of view interferometers. The use of integer fractional baselines minimizes the number of additional elements since the ambiguities of the smaller baseline straddles those of the overall baseline.
R.B. Dybdal, P.R. Rousseau
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Monopulse resolution of interferometric ambiguities

1982 Antennas and Propagation Society International Symposium, 1986
Practical interferometric systems capable of high angular accuracy must resolve ambiguities which result from large baseline dimensions. A new technique is described which resolves ambiguities based on monopulse measurements made with interferometric elements.
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Ambiguity Resolution in Interferometry

IEEE Transactions on Aerospace and Electronic Systems, 1981
A comprehensive theory of interferometry from a system viewpoint with particular emphasis on the ambiguity resolution problem is developed. The derived error equations include contributions from all system uncertainties, i.e., phase measurement, frequency, and element phase center position errors in three dimensions. The direction-of-arrival errors are
Ernest Jacobs, Elizabeth Ralston
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An approach to GLONASS ambiguity resolution

Journal of Geodesy, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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