Using single millisecond pulsar for terrestrial position determination
Sign Up to like & getrecommendations! Published in 2019 at "Astrophysics and Space Science"
DOI: 10.1007/s10509-019-3531-2
Abstract: With precise observatory coordinates, we can convert the site arrival times (SATs) of observed pulses to barycenter by adopting correct pulsar timing model. In this paper, we time millisecond pulsars to determine the position of… read more here.
Keywords: millisecond; pulsar terrestrial; position; position determination ... See more keywords
Accuracy and precision of position determination in ISTEM imaging of BaTiO3.
Sign Up to like & getrecommendations! Published in 2021 at "Ultramicroscopy"
DOI: 10.1016/j.ultramic.2021.113325
Abstract: In this paper we study the effect of lens aberrations (spherical aberration and astigmatism), beam tilt, contamination and shot noise on the accuracy and precision of position determination in imaging scanning transmission electron microscopy (ISTEM)… read more here.
Keywords: accuracy precision; precision position; position determination; istem ... See more keywords
Direct position determination with phase error compensation for multiple targets using spatial sparsity
Sign Up to like & getrecommendations! Published in 2021 at "Measurement Science and Technology"
DOI: 10.1088/1361-6501/abe9dc
Abstract: Measuring the positions of multiple targets is key in many positioning applications. Utilizing compressed sensing theory, measurements using the sparse direct position determination (DPD) methods are more accurate than the two-step methods and the traditional… read more here.
Keywords: direct position; position; multiple targets; error compensation ... See more keywords
Accuracy of position determination in Ca^{2+} signaling.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review. E"
DOI: 10.1103/physreve.100.022401
Abstract: A living cell senses its environment and responds to external signals. In this paper, we study theoretically the precision at which cells can determine the position of a spatially localized transient extracellular signal. To this… read more here.
Keywords: determination signaling; accuracy position; position; position determination ... See more keywords
A Computationally Efficient Direct Position Determination Algorithm Based on OFDM System
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2022.3231548
Abstract: Based on the orthogonal frequency division multiplexing (OFDM) system, a computationally attractive implementation for the traditional single source maximum likelihood (SML) direct position determination (DPD) algorithm is proposed. The proposed algorithm implements fast Fourier transform… read more here.
Keywords: sml; algorithm; direct position; ofdm system ... See more keywords
Distributed Direct Position Determination
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2020.3025386
Abstract: The direct position determination (DPD) algorithms have been shown to outperform conventional two-step methods in localization accuracy under poor observation conditions (e.g., low signal-to-noise ratios or short signal observation durations). In this paper, we consider… read more here.
Keywords: cost function; position determination; position; direct position ... See more keywords
Robust direct position determination methods in the presence of array model errors
Sign Up to like & getrecommendations! Published in 2018 at "EURASIP Journal on Advances in Signal Processing"
DOI: 10.1186/s13634-018-0555-7
Abstract: Direct position determination (DPD) methods are known to have many advantages over the traditional two-step localization method, especially for low signal-to-noise ratios (SNR) and/or short data records. However, similar to conventional direction-of-arrival (DOA) estimation methods,… read more here.
Keywords: model errors; direct position; position; array model ... See more keywords