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Precise Positioning

Precise positioning of spacecrafts by multi frequency VLBI

Precise positioning of spacecrafts by multi frequency VLBI

... the case of the smaller angular distance between the radio sources. These frequencies are set to resolve the cycle am- biguity of a carrier wave at X-band from three group delays between carrier waves at S-band. MFV ...

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Precise Positioning of Pneumatic Artificial Muscle Systems

Precise Positioning of Pneumatic Artificial Muscle Systems

... the precise motion for PAM mechan- ...the precise positioning of a PAM mechanism with a pair of PAMs is proposed and its usefulness is demonstrated ...for precise positioning of the PAM ...

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A Frantic Jumble Rail Fastener Precise Positioning Algorithm Research

A Frantic Jumble Rail Fastener Precise Positioning Algorithm Research

... accurate positioning of orbital characteristics is the premise to obtain accurate parameters of track geometry ...realize positioning extraction of ...to precise positioning of a frantic ...

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Optimal Two-Degree-of-Freedom Control for Precise Positioning of a Piezo-Actuated Stage

Optimal Two-Degree-of-Freedom Control for Precise Positioning of a Piezo-Actuated Stage

... This paper has presented a novel design method for designing a 2DOF controller for precise positioning of a MEMS-based piezo-actuated stage. The piezo-actuated stage was modelled based on the Bouc-Wen ...

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Tropospheric delay parameters from numerical weather models for multi-GNSS precise positioning

Tropospheric delay parameters from numerical weather models for multi-GNSS precise positioning

... reliability, positioning accuracy, and convergence time of PPP in comparison with the stand-alone GPS ...the positioning accuracy when compared to single-system PPP ...time precise positioning ...

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Flight tests of GPS/GLONASS precise positioning versus dual frequency KGPS profile

Flight tests of GPS/GLONASS precise positioning versus dual frequency KGPS profile

... for applications such as open-cast mining operations and highly dynamic vehicles such as spaceplanes. Moreover, using GLONASS satellites in addition to GPS is useful for long baseline applications since it increases the ...

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Novel split chest tube improves post-surgical thoracic drainage

Novel split chest tube improves post-surgical thoracic drainage

... that precise positioning of separate arms of the novel chest drain in the costo-diaphragmatic recess and mediastinum is as efficient and affords more complete fluid evacuation than conventional, completely ...

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Augment BeiDou real time precise point positioning using ECMWF data

Augment BeiDou real time precise point positioning using ECMWF data

... for precise positioning with a comparable accu- racy to that of the Global Positioning System (GPS) at the centimeter level for the horizontal component and the sub- centimeter level for the vertical ...

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High Accuracy and Sensitivity Method of the Observation of the Surface’s Morphology Changes by Means of Atomic Force Microscopy with Cyclic, Precise Sample Positioning

High Accuracy and Sensitivity Method of the Observation of the Surface’s Morphology Changes by Means of Atomic Force Microscopy with Cyclic, Precise Sample Positioning

... The scanning resolution was 512 x 512 points. The data was processed using SPIP software from Image Metrology company [23]. Root mean square roughness (Sq) was determined for each acquired image and used for the ...

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Atmospheric Water Estimation Using GNSS Precise Point Positioning Method

Atmospheric Water Estimation Using GNSS Precise Point Positioning Method

... and precise data files were post-processed using the PPP processing algorithm [7, ...geospatial precise positioning applications, especially those suitable for post-missing ...

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Precise Optical Positioning Using an Inexpensive USB Microscope Camera.

Precise Optical Positioning Using an Inexpensive USB Microscope Camera.

... The Anoto system is highly developed and commercialized. The information described about their technology is extracted from publicly available information on their website and patents. They also have a software ...

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Study of ionospheric disturbances over the China mid  and low latitude region with GPS observations

Study of ionospheric disturbances over the China mid and low latitude region with GPS observations

... for precise positioning techniques based on global positioning system (GPS) ...static precise point positioning (PPP) on storm and quiet days is ...on positioning with technique ...

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Galileo millimeter level kinematic precise point positioning with ambiguity resolution

Galileo millimeter level kinematic precise point positioning with ambiguity resolution

... high-accuracy precise point positioning (PPP) can be ...kinematic positioning for a set of fixed stations at a 30-s ...of precise Galileo orbit and “integer” clock products, delivered by ...

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Effect of the 24 September 2011 solar radio burst on precise point positioning service

Effect of the 24 September 2011 solar radio burst on precise point positioning service

... Global Positioning System (GPS) and Global Navigation Satellite System (GLONASS), include the effect of ionospheric perturbations and the direct effect of solar radio ...and positioning errors of up to 60 m ...

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A concept of precise kinematic positioning and flight state monitoring from the AGMASCO practice

A concept of precise kinematic positioning and flight state monitoring from the AGMASCO practice

... The EU (European Union) project AGMASCO (Airborne Geoid Mapping System for Coastal Oceanography), in which five European institutions participated, has collected about two months of static and airborne kinematic GPS data ...

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Impact of Tropospheric Delay Gradients on Total Tropospheric Delay and Precise Point Positioning

Impact of Tropospheric Delay Gradients on Total Tropospheric Delay and Precise Point Positioning

... tively [7]. Different models are available to compute the zenith tropospheric delay (dry and wet components). Tropospheric models include Saastamoinen model [8], Davis et al. model [9], Baby et al. model [10], Hopfield ...

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Comparative analysis of real time precise point positioning zenith total delay estimates

Comparative analysis of real time precise point positioning zenith total delay estimates

... The observations from Global Navigation Satellite Systems (GNSS) can be used to study the state of the troposphere at a given location and time by estimating the respective amount of zenith total delay (ZTD) and ...

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A REVIEW ON KALMAN FILTER FOR GPS TRACKING

A REVIEW ON KALMAN FILTER FOR GPS TRACKING

... Global Positioning System to determine the precise location of a vehicle, person, or other asset to which it is attached and to record the position of the asset at regular ...

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Title: IoT BASED SURGICAL STRIKE

Title: IoT BASED SURGICAL STRIKE

... global positioning system to determine the precise location of an object, person or other asset to which it is attached and using GSM modem this information can be transmit to remote ...

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Evaluation of precise point positioning services

Evaluation of precise point positioning services

... (OPUS has since resumed operation). Data collected from a single point over thirty-two consecutive days was broken into twenty-four one hour sessions per day and each of the thirty-two days of data processed using each ...

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