Results 21 to 30 of about 580,865 (313)
The BeiDou system (BDS) plays a significant role in people’s lives, but its security is easily affected by spoofing attacks. The radio determination satellite service (RDSS) is a special service of BDS that provides two-way communication, positioning ...
Fei Wang +4 more
doaj +1 more source
An accurate identification of oil spill types is the basis of determining the source of leakage, evaluating the potential damage, and deciding a plan of responses for an oil spill event.
Ying Li +5 more
doaj +1 more source
LTE NLOS Navigation and Channel Characterization [PDF]
Navigation with terrestrial wireless infrastructure is appealing to overcome geometrical limitations of satellite navigation for users in environments with limited sky views.
Tufvesson, Fredrik +6 more
core +1 more source
BOC Signal Acquisition Algorithm Based on Similar Enfoldment
A BOC signal has been widely used in the Global Navigation Satellite System (GNSS). Although the BOC signal has many advantages, the autocorrelation function (ACF) of the BOC signal has lots of peaks, which makes signal acquisition difficult.
Qi Han +5 more
doaj +1 more source
Conflict Resolution Strategy Based on Flight Conflict Network Optimal Dominating Set
Aiming at the problem that the air traffic flow is increasing year by year and the flight conflicts are difficult to be deployed, we take aircraft as the node and established a flight conflict network based on the flight conflict relationship between ...
Minggong Wu +4 more
doaj +1 more source
The need to assess security and take protection decisions is at least as old as our civilisation. However, the complexity and development speed of our interconnected technical systems have surpassed our capacity to imagine and evaluate risk scenarios.
Christian W. Probst +2 more
openaire +5 more sources
Towards Operational Systems for Continuous Navigation of Rescue Teams [PDF]
Self-protection is of rescue teams has absolute priority over all other objectives. Nevertheless rescue workers, such as fire fighters often face conditions that impose a combination of threats on them: severe physical and mental stress, limited or no ...
Mohammed Khider +5 more
core +1 more source
Adaptive filtering applications to satellite navigation [PDF]
PhDDifferential Global Navigation Satellite Systems employ the extended Kalman filter to estimate the reference position error. High accuracy integrated navigation systems have the ability to mix traditional inertial sensor outputs with navigation ...
Zhahir, Md Amzari
core +3 more sources
A navigation algorithm inspired by human navigation [PDF]
Human navigation has been a topic of interest in spatial cognition from the past few decades. It has been experimentally observed that humans accomplish the task of way-finding a destination in an unknown environment by recognizing landmarks. Investigations using network analytic techniques reveal that humans, when asked to way-find their destination ...
M. Vijesh +5 more
openaire +2 more sources
Rail Digital Map Construction on GNSS Denied Areas
A Digital Map of the rail infrastructure in a key element to support the adoption of GNSS in railway signalling and satisfy the strict accuracy and integrity requirements even in the presence of feared events that may hinder the positioning solution.
D’Orazio, Francesca +5 more
core +1 more source

