Results 51 to 60 of about 4,702,403 (151)

High Accuracy Reference-free Ultrasonic Location Estimation [PDF]

open access: yes, 2012
This paper presents a novel reference-free ultrasonic indoor location system. Unlike most previous proposals, the mobile device (MD) determines its own position based only on ultrasonic signals received at a compact sensor array and sent by a fixed ...
Saad, Mohamed   +7 more
core   +1 more source

Recognition of repeating earthquakes in Hunan area and its application to seismic network location evaluation

open access: yes地震科学进展
Based on 778 earthquakes (2009—2022) and their observation reports recorded by the Hunan Seismic Network, through the analysis of the cross-correlation of the waveforms, 149 repeated earthquake pairs were identified which were recorded at least 3 ...
Qiyun Yan   +6 more
doaj   +1 more source

Evaluating EUCLID location accuracy using lightning events near tall structures [PDF]

open access: yesAtmospheric Measurement Techniques
This study evaluates the location accuracy (LA) of the European Cooperation for Lightning Detection (EUCLID) network by analysing lightning events recorded near tall structures located either on flat ground or on elevated terrain, such as mountain ridges,
D. R. Poelman, H. Kohlmann, W. Schulz
doaj   +1 more source

A model of object location memory [PDF]

open access: yes, 2014
We present a model of object location memory developed within the ACT-R cognitive architecture and compare the model's performance to that of human participants in a modified version of the toy test. The results of the experiment reveal that the accuracy
Jones, Corinna, Peebles, David
core   +2 more sources

Dynamic W-CDMA network planning using mobile location [PDF]

open access: yes, 2002
Location assisted dynamic network planning enables an operator to obtain geographic specific performance estimates and automatically redistribute radio resources.
Nix, AR, Sharma, S, A.R. Nix, S. Sharma
core   +1 more source

Exploring the Effects of Target Location Size and Position System Accuracy on Location Based Applications

open access: yes, 2006
We describe an examination of various physical and human factors which influence the effectiveness of location-based applications. By varying both the target location size and position system accuracy, and hence the ease of use of an application, we are ...
Erik Geelhoed   +12 more
core   +1 more source

Location Assurance and Privacy in GNSS Navigation [PDF]

open access: yes, 2013
peer reviewedThe growing popularity of location-based services such as GNSS (Global Navigation Satellite System) navigation requires confidence in the reliability of the calculated locations. The exploration of a user’s location also gives rise to severe
Chen, Xihui   +4 more
core   +1 more source

The behavioral data shows no significant improvement for location accuracy.

open access: yes, 2012
The behavioral data shows no significant improvement for location accuracy.
H. Steven Scholte (41079)   +2 more
core   +1 more source

Research on Location Accuracy of UAV Based on DGPS/INS Technique

open access: yes, 2011
Location accuracy of UAV which adopts DGPS location technique was studied. Introduced principle of DGPS technology, Built state and measurement formulizations of DGPS/INS mixed navigation system, and location accuracy of UAV which adopts DGPS/INS mixed ...
Gang Lei   +3 more
core   +1 more source

Wireless indoor localization technology based on fingerprint algorithm

open access: yesDianxin kexue, 2016
As people's demand for location based service(LBS)is increasing, indoor localization has gradually becomes a hot research topic in the field of user location.
Mengdan ZHANG   +3 more
doaj   +2 more sources

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