• Aucun résultat trouvé

Precise positioning

Performance Limits of GNSS Code-Based Precise Positioning: GPS, Galileo & Meta-Signals

Performance Limits of GNSS Code-Based Precise Positioning: GPS, Galileo & Meta-Signals

... Sensors 2020, 20, 2196 14 of 21 the main peak. These secondary peaks induce a second operation region of the MLE between the CRB and the threshold. Indeed, in this intermediate operation region, the MLE jumps between ...

22

Performance Limits of GNSS Code-Based Precise Positioning: GPS, Galileo & Meta-Signals

Performance Limits of GNSS Code-Based Precise Positioning: GPS, Galileo & Meta-Signals

... Regarding the first question, at a representative SNR out = 25 dB operation point at the output of the MLE, it was found that the time-delay standard deviation using BPSK and BOC-type signals ranges between 2.24 m for ...

23

Low-cost GPS/GLONASS Precise Positioning in Constrained Environment

Low-cost GPS/GLONASS Precise Positioning in Constrained Environment

... Low-cost Precise Positioning for Road Users: Overview and Challenges Chapter 2 It can be seen that code measurement availability is very good in the 3 ...Therefore precise positioning ...

199

Precise positioning of Chang’e 3 lander based on Helmert-VCE-aided weighting method using phase delay data from Chinese VLBI Network

Precise positioning of Chang’e 3 lander based on Helmert-VCE-aided weighting method using phase delay data from Chinese VLBI Network

... lander positioning firstly is the key element in mission operations and scientific ...lander positioning algorithm will have the potential to contribute the high-accuracy model of the rotation and ...

15

Precise positioning in multi-GNSS mode

Precise positioning in multi-GNSS mode

...  Multi-GNSS improves positioning solutions  Higher number of visible satellites.  Lower PDOP values[r] ...

37

Precise positioning in multi-GNSS mode

Precise positioning in multi-GNSS mode

... Drawbacks of multi-GNSS  Differences between GNSS • Coordinate systems • Time systems • Hardware delays additional biases negligible estimable constant variable Additional unknown Rem[r] ...

22

On hysteresis modeling of a piezoelectric precise positioning system under variable temperature

On hysteresis modeling of a piezoelectric precise positioning system under variable temperature

... of positioning manipulator-based piezoceramic actuators, the proposed nonlinear models can enhance the precision tracking control of these manipulators [4, 5, 6, 11, 12, 13, 14, 16, 19, 24] ...the ...

46

Effects of small-scale atmospheric activity on precise positioning

Effects of small-scale atmospheric activity on precise positioning

... AB N to the correct integer value in real-time. The ambiguity resolution requires the use of sophisticated techniques like the so-called LAMBDA method (Joosten & Tiberius, 2000). When ambiguities are solved, the user ...

50

Precise Positioning with Dual Frequency Smartphones

Precise Positioning with Dual Frequency Smartphones

... • The simultaneous measurement of ranges to (at least) 4 different satellites allows to compute the user position.. Conclusions and outlook • The availability of dual frequency multi‐c[r] ...

13

Space Weather influence on satellite based navigation and precise positioning

Space Weather influence on satellite based navigation and precise positioning

...  There is no simple relationship between a given ionospheric There is no simple relationship between a given ionospheric activity (TEC) and the positioning error. activity (TEC) and the positioning error. ...

21

Precise Positioning with Smartphones running Android 7 or later

Precise Positioning with Smartphones running Android 7 or later

... Horizontal position repeatability (static case) 15 minutes of Samsung Galaxy S8 GPS code measurements (static smartphone) . Kalman filter using Code + Doppler.[r] ...

13

Localization Precise in Urban Area

Localization Precise in Urban Area

... although precise positioning technologies have been developed for high-end multiple-frequency receivers ...Many precise positioning techniques have been devised to improve the ...

157

View planning with positioning system error

View planning with positioning system error

... 4.2 Pose Error Model Suitability This analysis has employed a simple, general purpose error model based on Gaussian statistics. The sta- tistical behavior of real positioning systems is more complex and highly ...

28

Wake survey analysis and positioning software

Wake survey analysis and positioning software

... National Research Council Canada Institute for Ocean Technology Conseil national de recherches Canada Institut des technologies oc ´eaniques Laboratory Memorandum LM-2007-02. Wake Survey[r] ...

145

Relativistic Positioning Systems: The Emission Coordinates

Relativistic Positioning Systems: The Emission Coordinates

... and positioning. Some more specific papers on positioning systems have been published [16, 23, 17, 18, 19, 20, 22, 21], an international school has been devoted to the subject [24], and some works are in ...

24

Positioning NK-kappaB in multiple myeloma.

Positioning NK-kappaB in multiple myeloma.

... Activation of CD40 B cell molecules by the CD40ligand on cognate T cells and of Toll like receptor by bacterial products induce non-canonical and canonical NF-  B pathway activation [r] ...

6

Nuclear positioning: A matter of life

Nuclear positioning: A matter of life

... Nuclear positioning: a matter of life Cadot Bruno Cell organization, and in particular how organelles are distributed in the cell, is often used by physio- pathologists to visually identify cell types in an ...the ...

3

A Precise Metamodel for Open Cloud Computing Interface

A Precise Metamodel for Open Cloud Computing Interface

... our precise semantics of OCCI consis- tent for modeling any OCCI systems? The response to this question is yes as there are no contradictions between our twenty five OCL invariants, else EMF-VF will not evaluate ...

9

Precise Spatio-Temporal Electromagnetic Fault Injections on Data Transfers

Precise Spatio-Temporal Electromagnetic Fault Injections on Data Transfers

... micrometer positioning table, which coordinates in the target referential are denoted by x and y over the the surface of the device, and z in the orthogonal ...the positioning table, the pulse generator, ...

9

Precise deadlock detection for polychronous data-flow specifications

Precise deadlock detection for polychronous data-flow specifications

... more precise deadlock detection approach for deadlock-free checking of synchronous programs defining multi-clocked embedded real-time systems in the Signal ...

7

Show all 290 documents...

Sujets connexes