Results 61 to 70 of about 134,077 (188)

Sensitivity to Soil Moisture and Observation Geometry of Spaceborne GNSS-R Delay-Doppler Maps [PDF]

open access: yes, 2019
© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes,creating new ...
Camps Carmona, Adriano José   +5 more
core   +1 more source

Morphological updating on the basis of integrated DTMs: study on the Albano and Nemi craters [PDF]

open access: yes, 2008
The Colli Albani Volcano has recently developed particular interest in the geophysical community for some peculiar characteristics imputable to a recent residual volcanic activity, thus evidencing that it cannot be considered extinguished yet.
Augusto Mazzoni   +4 more
core   +1 more source

Online Estimation of the Mounting Angle and the Lever Arm for a Low-Cost Embedded Integrated Navigation Module

open access: yesRemote Sensing
Multi-source fusion constitutes a research focus in the navigation domain. This article focuses on the online estimation of the mounting angles between the body frame and vehicle frame within low-cost embedded vehicle navigation modules and the lever arm
Qinghai Wang   +7 more
doaj   +1 more source

BeiDou Geostationary Satellite Code Bias Modeling Using Fengyun-3C Onboard Measurements

open access: yesSensors, 2017
This study validated and investigated elevation- and frequency-dependent systematic biases observed in ground-based code measurements of the Chinese BeiDou navigation satellite system, using the onboard BeiDou code measurement data from the Chinese ...
Kecai Jiang   +4 more
doaj   +1 more source

New possibilities of calculating the volumes of extracted masses in the surface mining of brown coal [PDF]

open access: yes, 2017
The companies engaged in brown coal mining are looking for ways of managing the mining process as efficiently as possible. The principal mining technology used for brown coal mining in our country, but also in Germany and Poland, are wheel excavators ...
Gibesová, Beáta   +3 more
core  

National BDS Augmentation Service System (NBASS) of China: Progress and Assessment

open access: yesRemote Sensing, 2017
: In this contribution, the processing strategies of real-time BeiDou System (BDS) precise orbits, clocks, and ionospheric corrections in the National BDS Augmentation Service System (NBASS) are briefly introduced.
Chuang Shi   +8 more
doaj   +1 more source

A Multi Antenna Receiver for Galileo SoL Applications [PDF]

open access: yes, 2008
One of the main features of the Galileo Satellite Navigation System is integrity. To ensure a reliable and robust navigation for Safety of Life applications, like CAT III aircraft landings, new receiver technologies are indispensable.
Cuntz, Manuel   +5 more
core  

Linear-Combined-Code-Based Unambiguous Code Discriminator Design for Multipath Mitigation in GNSS Receivers [PDF]

open access: yes, 2012
Unambiguous tracking and multipath mitigation for Binary Offset Carrier (BOC) signals are two important requirements of modern Global Navigation Satellite Systems (GNSS) receivers.
Chen, Huihua   +3 more
core   +1 more source

Secure Trajectory Planning Against Undetectable Spoofing Attacks

open access: yes, 2019
This paper studies, for the first time, the trajectory planning problem in adversarial environments, where the objective is to design the trajectory of a robot to reach a desired final state despite the unknown and arbitrary action of an attacker.
Bianchin, Gianluca   +2 more
core   +1 more source

GNSS Signal Authentication via Power and Distortion Monitoring [PDF]

open access: yes, 2017
We propose a simple low-cost technique that enables civil Global Positioning System (GPS) receivers and other civil global navigation satellite system (GNSS) receivers to reliably detect carry-off spoofing and jamming.
Evans, Brian L.   +3 more
core   +1 more source

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