A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2013; you can also visit the original URL.
The file type is application/pdf.
Filters
SATLSim: a Semi-Analytic framework for fast GNSS tracking loop simulations
2011
GPS Solutions
Preserved Fulltext
Efficient tracking loop simulations can be obtained by substituting the I&D blocks with their analytical model. ...
This principle directly applies to GNSS digital tracking loops, where the most computationally demanding components are the Integrate and Dump (I&D) blocks used for despreading the incoming GNSS signals ...
doi:10.1007/s10291-011-0221-0
fatcat:p4376yqiazcbll6chs2cmvqvoq
A graphical approach to GPS software-defined receiver implementation
2013
2013 IEEE Global Conference on Signal and Information Processing
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
The carrier-aided code tracking mode consists of the following main building blocks: correlators, code and carrier phase detectors, code and carrier phase filters, a code generator, and a numerically-controlled ...
A typical GPS receiver is readily expressible as a block diagram, making a graphical approach a natural choice for implementing GPS SDRs. ...
Code Phase Tracking Code phase tracking is achieved via a delay lock loop (DLL), consisting of a code phase detector (discriminator) and a code loop filter. ...
doi:10.1109/globalsip.2013.6737129
dblp:conf/globalsip/KassasBH13
fatcat:l5ol6k3ve5chfool6ffzvd4yru
Semi-Analytic Techniques for Fast MATLAB Simulations
[chapter]
2012
MATLAB - A Fundamental Tool for Scientific Computing and Engineering Applications - Volume 2
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is application/pdf.
For example, figures of merit such as the Bit Error Rate (BER) are difficult to determine analytically for transmission schemes involving correction codes and communication channels with Inter-Symbol Interference ...
Additional information is available at the end of the chapter http://dx.doi.org/10.5772/46470 Introduction Advances in electronics and telecommunications are leading to complex systems able to efficiently ...
Efficient tracking loop simulations can be obtained by substituting the I&D blocks with their analytical model. ...
doi:10.5772/46470
fatcat:udbvs47j55f3zbvljrglkmvswy
Sub-carrier shaping for BOC modulated GNSS signals
2011
EURASIP Journal on Advances in Signal Processing
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
This filtering effect can be equalized leading to unambiguous tracking and allowing autocorrelation shaping. ...
One of the main challenges in Binary Offset Carrier (BOC) tracking is the presence of multiple peaks in the signal autocorrelation function. ...
In a GNSS code tracking loop, correlation is the most computationally demanding task. ...
doi:10.1186/1687-6180-2011-133
fatcat:5kmzyo5jvrabtiao33y2wrj5le
Deep fusion of vector tracking GNSS receivers and a 3D city model for robust positioning in urban canyons with NLOS signals
2014
2014 7th ESA Workshop on Satellite Navigation Technologies and European Workshop on GNSS Signals and Signal Processing (NAVITEC)
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL.
The file type is application/pdf.
In this work, we propose a deep integration of the 3D model-based signal characterization into an advanced GNSS receiver architecture called vector tracking loops. ...
To exploit these biased signals, we compensate for the NLOS bias using a 3D GNSS simulation model of the environment. ...
ACKNOWLEDGMENT The authors would like to thank OKTAL-SE, Thales Alenia Space and DGA for supporting this work. ...
doi:10.1109/navitec.2014.7045155
fatcat:sevwk2wzlbcbjlrtuc26batdre
Performance study of FLL schemes for a successful acquisition-to-tracking transition
2014
2014 IEEE/ION Position, Location and Navigation Symposium - PLANS 2014
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is application/pdf.
Then, based on Monte-Carlo simulations, for each signal, the choices of FLL scheme parameters as the discriminator, loop bandwidth, correlator outputs combination technique are studied in order to highlight ...
This article focuses on the analysis of several FLL schemes for different GNSS signals in order to success the acquisition-to-tracking transition at low received C/N 0 . ...
It is also one of the most computationally efficient discriminator. ...
doi:10.1109/plans.2014.6851414
fatcat:3coeyiachrek7izhrkhpjjtbom
Kalman filter-based architecture for robust and high-sensitivity tracking in GNSS receivers
2010
2010 5th ESA Workshop on Satellite Navigation Technologies and European Workshop on GNSS Signals and Signal Processing (NAVITEC)
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
In these circumstances it is not possible for traditional receivers to keep track of the received signals, thus failing to provide reliable position fixes. ...
The contribution of this paper is the proposal and analysis with synthetic signal of a Kalman filterbased architecture for robust and high-sensitivity tracking. ...
Therefore, a computationally efficient architecture able to operate under high-sensitivity conditions is required. ...
doi:10.1109/navitec.2010.5708005
fatcat:jzgeie2sizbe5iko6hwp65eyk4
From response to stimulus: adaptive sampling in sensory physiology
2007
Current Opinion in Neurobiology
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2010; you can also visit the original URL.
The file type is application/pdf.
Third, information-theoretic data analyses open up novel ways to search for those stimuli that are most efficient in driving a given neuron in terms of its firing rate or coding quality. ...
Second, model-driven stimulus exploration improves the quality of experimental data needed to discriminate between alternative hypotheses. ...
Acknowledgements We thank Jeremy Lewi for providing the data shown in Figure ...
doi:10.1016/j.conb.2007.07.009
pmid:17689952
fatcat:662ic43xrvckjphozrhlu5sp5i
Optimized Carrier Tracking Loop Design for Real-Time High-Dynamics GNSS Receivers
2012
International Journal of Navigation and Observation
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL.
The file type is application/pdf.
Their phase and frequency discriminators and loop filter are derived considering the digital nature of the loop inputs. ...
Optimal and efficient ways to smooth the phase estimates are also presented. ...
The pull-out probability is approximated as an efficient tool for selecting the correlation time and the loop bandwidth so that the tracking threshold is minimized. ...
doi:10.1155/2012/651039
fatcat:ilifz6cvnnerpjeiijkyw3loei
Channel-noise tracking for sub-shot-noise-limited receivers with neural networks
[article]
2021
arXiv
pre-print
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2021; you can also visit the original URL.
The file type is application/pdf.
Here, we investigate the use of a deep neural network as a computationally efficient estimator of phase and amplitude channel noise to enable a reliable method for noise tracking for non-Gaussian receivers ...
However, the amount of information that can be reliably transmitted substantially degrades if there is noise in the communication channel, unless the receiver is able to efficiently compensate for such ...
This result demonstrates the capabilities of a NN for efficient and reliable noise tracking for non-Gaussian receivers for state discrimination. ...
arXiv:2102.07665v1
fatcat:cn5ke5j7ovb4ngumdhpulfsuce
Investigating the Benefits of Vector-Based GNSS Receivers for Autonomous Vehicles under Challenging Navigation Environments
2020
Signals
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
The results show that the vector tracking system outperforms the scalar tracking in terms of position and velocity estimation accuracy in signal-degraded environments. ...
There is a growing demand for robust and accurate positioning information for various applications, including the self-driving car industry. ...
in [5] introduced a novel integration scheme for the discriminator-based multipath mitigation technique and the VT loop. ...
doi:10.3390/signals1020007
fatcat:pi4tqnx6l5b5ncoov76rjj2c4e
Fast Direct Stereo Visual SLAM
[article]
2021
arXiv
pre-print
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2021; you can also visit the original URL.
The file type is application/pdf.
We extend monocular Direct Sparse Odometry (DSO) to a stereo system by optimizing the scale of the 3D points to minimize photometric error for the stereo configuration, which yields a computationally efficient ...
Afterward, we estimate the relative pose using direct alignment by minimizing the photometric error for potential loop closures. ...
These simplifications facilitate a computationally efficient optimization process. ...
arXiv:2112.01890v1
fatcat:szjf2o6hz5h3hojryhjfwhkunm
Double phase estimator: New results
2014
2014 7th ESA Workshop on Satellite Navigation Technologies and European Workshop on GNSS Signals and Signal Processing (NAVITEC)
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is application/pdf.
In the DPE, the signal subcarrier is processed independently from the code and carrier components and it is tracked using a modified Phase Lock Loop (PLL). ...
The Double Phase Estimator (DPE) has been recently proposed as an effective alternative to the Double Estimator (DE) for unambiguously tracking Binary Offset Carrier (BOC) modulated signals. ...
This is the approach commonly used for the processing of the code and of the carrier components which are tracked with a Delay Lock Loop (DLL) and a Phase Lock Loop (PLL), respectively. ...
doi:10.1109/navitec.2014.7045138
fatcat:vgntzivi7jf6vewe5tn3onyqau
Table-Based Adaptive Digital Phase-Locked Loop for GNSS Receivers Operating in Moon Exploration Missions
2022
Sensors
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2022; you can also visit the original URL.
The file type is application/pdf.
It is verified that the proposed algorithm is computationally efficient while maintaining jitter performance. ...
An adaptive digital phase-locked loop (DPLL) continually adjusts the noise bandwidth of the loop filter in global navigation satellite system (GNSS) receivers to track signals by measuring the signal-to-noise ...
The code tracking loop is set to the carrier-aided first-order delay-locked loop (DLL) with the noncoherent early-minus-late discriminator. ...
doi:10.3390/s222410001
pmid:36560374
pmcid:PMC9785736
fatcat:wv5s34xfmjcmrcbwtiup6oz2dy
A GPS spoofing detection and classification correlator-based technique using the LASSO
2020
IEEE Transactions on Aerospace and Electronic Systems
Preserved Fulltext
A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2020; you can also visit the original URL.
The file type is application/pdf.
Note that this fulltext copy is not of the "primary" version of this work. The version it corresponds to is:
2020 pre-print arXiv:2004.13900v1 fatcat:t5mtegessngptj2jcyrqweazyy
The proposed technique can be implemented as an advanced fine-acquisition monitoring tool to aid in the tracking loops for spoofing mitigation. ...
The optimal solution of this minimization problem discriminates the presence of a potential spoofing attack peak by observing a decomposition of two different code-phase values (authentic and spoofed) ...
The phase lock loop (PLL) tracks carrier-phase alignments, and the delay lock loop (DLL) tracks code-phase alignments. ...
doi:10.1109/taes.2020.2990149
fatcat:26pwul24gvd3xnn54lsqoiagiq
« Previous
Showing results 1 — 15 out of 8,510 results