Results 11 to 20 of about 2,761 (153)

On vectorial integer bootstrapping implementations in the estimation of satellite orbits and clocks based on small global networks

Advances in Space Research, 2021
Abstract The estimation of satellite orbits and clocks plays a central role in different Global Navigation Satellite System (GNSS) domains, e.g. precise positioning or time transfer. Such products can be computed in the process of Orbit Determination and Time Synchronization (ODTS), which relies on a network of ground-based stations, well distributed
Lotfi Massarweh, Sebastian Straßer, Torsten Mayer-Gürr   +2 more
exaly   +5 more sources

Data-driven generalized integer aperture bootstrapping for real-time high integrity applications [PDF]

2016 IEEE/ION Position, Location and Navigation Symposium (PLANS), 2016
A new method is developed for integer ambiguity resolution in carrier-phase differential GPS (CDGPS) positioning. The method is novel in that it is (1) data-driven, (2) generalized to include partial ambiguity resolution, and (3) amenable to a full ...
Gary Nathan Green, Martin King, Todd E. Humphreys   +2 more
exaly   +3 more sources

Performance investigation of LAMBDA and bootstrapping methods for PPP narrow-lane ambiguity resolution

Geo-spatial Information Science, 2021
Precise point positioning with ambiguity resolution (PPP-AR) is a powerful tool for geodetic and time-constrained applications that require high precision.
Omer Faruk Atiz, Sermet Ogutcu, Salih Alcay, Pan Li, Ilkay Bugdayci   +4 more
doaj   +2 more sources

Bootstrapping Small Integers With CKKS [PDF]

The native plaintexts of the Cheon-Kim-Kim-Song (CKKS) fully homomorphic encryption scheme are vectors of approximations to complex numbers. Drucker et al. [J. Cryptol.’24] have showed how to use CKKS to efficiently perform computations on bits and small bit-length integers, by relying on their canonical embeddings into the complex plane. For small bit-
Youngjin Bae, Jaehyung Kim 0002, Damien Stehlé, Elias Suvanto   +3 more
core   +5 more sources

Position-Domain Integrity Analysis for Generalized Integer Aperture Bootstrapping

IEEE Transactions on Aerospace and Electronic Systems, 2019
A full analysis of position-domain integrity is carried out for the recently introduced generalized integer aperture bootstrapping (GIAB) technique, a data-driven method for resolving and validating global navigation satellite system carrier-phase integer ambiguities suitable for high-integrity safety-critical systems.
Gary Nathan Green
exaly   +2 more sources

Data-Driven Generalized Integer Aperture Bootstrapping for High-Integrity Positioning

IEEE Transactions on Aerospace and Electronic Systems, 2019
A new method is developed for integer ambiguity resolution in carrier-phase differential global navigation satellite system positioning. The method is novel in that it is simultaneously data-driven, generalized to include partial ambiguity resolution, and amenable to a full analytical characterization of the prior probabilities of correctly and ...
Gary Nathan Green, Todd E Humphreys
exaly   +2 more sources

Efficient Homomorphic Integer Computer from CKKS [PDF]

Transactions on Cryptographic Hardware and Embedded Systems
As Fully Homomorphic Encryption (FHE) enables computation over encrypted data, it is a natural question of how efficiently it handles standard integer computations like 64-bit arithmetic.
Jaehyung Kim
doaj   +4 more sources

Evaluating Larger Lookup Tables using CKKS

Transactions on Cryptographic Hardware and Embedded Systems
The Cheon–Kim–Kim–Song (CKKS) scheme is a fully homomorphic encryption scheme that traditionally supports only the evaluation of smooth functions. Recent works have enabled the evaluation of arbitrary (discontinuous) integer functions represented as ...
Jules Dumezy, Andreea Alexandru, Yuriy Polyakov, Pierre-Emmanuel Clet, Olive Chakraborty, Aymen Boudguiga   +5 more
doaj   +2 more sources

spINAR: An R Package for Semiparametric and Parametric Estimation and Bootstrapping of Integer-Valued Autoregressive (INAR) Models

Journal of Open Source Software
Although the statistical literature extensively covers continuous-valued time series processes and their parametric, non-parametric and semiparametric estimation, the literature on count data time series is considerably less advanced. Among the count data time series models, the integer-valued autoregressive (INAR) model is arguably the most popular ...
Carsten Jentsch
exaly   +3 more sources

Treeline Provides a Unified Strategy for Optimising Phylogenetic Trees Under Alternative Criteria. [PDF]

Mol Ecol Resour
ABSTRACT The choice of optimality criterion is a key consideration in phylogenetic studies. Recent work challenges the notion that more computationally demanding optimisation objectives result in better phylogenetic trees. This finding underscores the importance of comparing trees across optimisation objectives in addition to different models of ...
Wright ES.
europepmc   +2 more sources