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The wavelet method as an alternative for reducing ionospheric effects from single-frequency GPS receivers
(Springer, 2007-12-01)
The ionospheric effect is one of the major errors in GPS data processing over long baselines. As a dispersive medium, it is possible to compute its influence on the GPS signal with the ionosphere-free linear combination ...
Single-layer dichroic filters for multifrequency receivers at THz Frequencies
(IEEE, 2020)
In this work, we report the design, construction, and characterization of two free-standing single-layer frequency-selective surface structures to be used as dichroic filters in the THz range. Their spectral responses are ...
The wavelet method as an alternative for reducing ionospheric effects from single-frequency GPS receivers
(Springer, 2007-12-01)
The ionospheric effect is one of the major errors in GPS data processing over long baselines. As a dispersive medium, it is possible to compute its influence on the GPS signal with the ionosphere-free linear combination ...
Use of a Single L1 GPS Receiver for Monitoring Structures: First Results of the Detection of Millimetric Dynamic Oscillations
(ASCE-AMER SOC CIVIL ENGINEERSRESTON, 2012)
This paper presents preliminary results to determine small displacements of a global positioning system (GPS) antenna fastened to a structure using only one L1 GPS receiver. Vibrations, periodic or not, are common in large ...
Mitigating systematic errors for single frequency GPS receivers employing a penalized least squares methodology
(2006-12-27)
Among the positioning systems that compose GNSS (Global Navigation Satellite System), GPS has the capability of providing low, medium and high precision positioning data. However, GPS observables may be subject to many ...
Mitigating systematic errors for single frequency GPS receivers employing a penalized least squares methodology
(2006-12-27)
Among the positioning systems that compose GNSS (Global Navigation Satellite System), GPS has the capability of providing low, medium and high precision positioning data. However, GPS observables may be subject to many ...
Pilot tone aided measurements to extend the bandwidth of radio frequency applications
(Elsevier B.V., 2016)
A technique to extend the effective measurement bandwidth of a non-coherent vector receiver is presented. This bandwidth extension technique relies on the use of a pilot signal (known a priori), which is added on the signal ...
Modifying the stochastic model to mitigate GPS systematic errors in relative positioning
(2007-12-01)
The GPS observables are subject to several errors. Among them, the systematic ones have great impact, because they degrade the accuracy of the accomplished positioning. These errors are those related, mainly, to GPS ...
Efficacy of antibiotic therapy in reducing the frequency of dry socket single post exodontia. Randomized, controlled, single-blind clinical trial [Efectividad de la antibioticoterapia en la reducción de la frecuencia de alveolitis seca postexodoncia simple. Ensayo clínico aleatorizado de grupos en paralelo, controlado y ciego simple]
(Universidad Católica los Ángeles de Chimbote, 2016-10-01)
Objective To evaluate the efficacy of antibiotic therapy in reducing the frequency of dry socket single post exodontia. Material and methods This parallel randomized, controlled, single-blind, was developed in the dental ...