Results 21 to 30 of about 960,386 (297)

Adaptive filtering applications to satellite navigation [PDF]

open access: yes, 2010
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   +4 more sources

Towards Operational Systems for Continuous Navigation of Rescue Teams [PDF]

open access: yes, 2008
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

Radio Direction Finding in Air Traffic Services

open access: yesPromet (Zagreb), 2005
The paper analyses the Radio Direction Finding principlefor navigation and swveillance system. Radio Direction Findinginvolves locating the bearing of a transmitter called a radiobeacon.
Andrej Novak
doaj   +1 more source

Radio-Frequency Interference Considerations for Utility of the Galileo E6 Signal Based on Long-Term Monitoring by ARFIDAAS

open access: yesNavigation, 2023
The extent to which navigation signals in the E6 band may be impacted by shared spectrum allocations might be underappreciated. This paper presents top-level observations from a multi-year international radio frequency interference (RFI) monitoring ...
Aiden Morrison   +5 more
doaj   +1 more source

Show me the way to Monte Carlo: density-based trajectory navigation [PDF]

open access: yes, 2007
We demonstrate the use of uncertain prediction in a system for pedestrian navigation via audio with a combination of Global Positioning System data, a music player, inertial sensing, magnetic bearing data and Monte Carlo sampling for a density following ...
Strachan, S.   +8 more
core   +2 more sources

Bat target tracking strategies for prey interception

open access: yesCommunicative & Integrative Biology, 2021
Insectivorous bats capture their prey in flight with impressive success. They rely on the echoes of their own ultrasonic vocalization that yield acoustic snapshots, which enable target tracking on a rapid time scale.
Angeles Salles   +2 more
doaj   +1 more source

Optimal Trajectories for Homing Navigation with Bearing Measurements

open access: yesIFAC Proceedings Volumes, 2008
In this paper we examine the geometry of a number of navigation schemes for guiding a pursuer from a fixed initial position to a final target position. We explicitly characterize the optimal pursuer trajectories for the given problems in terms of minimizing the error in an unbiased estimate of the target position from successive bearing measurements ...
Adrian N. Bishop, Pubudu N. Pathirana
openaire   +1 more source

Towards Safe Navigation by Formalizing Navigation Rules [PDF]

open access: yes, 2013
One crucial aspect of safe navigation is to obey all navigation regulations applicable, in particular the collision regulations issued by the International Maritime Organization (IMO Colregs).
Kreutzmann, A   +7 more
core   +2 more sources

Observability-enhanced proportional navigation guidance with bearings-only measurements [PDF]

open access: yesThe Journal of the Australian Mathematical Society. Series B. Applied Mathematics, 1999
AbstractWe analyse the performance of the additive observable proportional navigation guidance system, which is well-suited for low-cost homing missiles with bearings-only measurements. Closed-form solutions are derived for both manoeuvring and non-manoeuvring targets.
Li, M. Y., Lim, C. C.
openaire   +2 more sources

Performance studies of oil lubricated helical groove journal bearing [PDF]

open access: yes, 1992
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The provision of helical grooves on the surface of a plain journal bearing can improve the stability of a rotor-bearing system.
Khan, Muhammad Zubair
core   +7 more sources

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