Results 91 to 100 of about 41,771 (208)

Toward a unified PNT, Part 1: Complexity and context: Key challenges of multisensor positioning [PDF]

, 2014
The next generation of navigation and positioning systems must provide greater accuracy and reliability in a range of challenging environments to meet the needs of a variety of mission-critical applications.
Groves, PD, Martin, H, Voutsis, K, Walter, D, Wang, L   +4 more
core  

INS/GPS Integrated Navigation Technology for Hypersonic UAV [PDF]

, 2014
INS/GPS integrated navigation system is studied in this paper for the hypersonic UAV in order to satisfy the precise guidance requirements of hypersonic UAV and in response to the defects while the inertial navigation system (INS) and the global ...
Ma, Hongtu, Meng, Nana, Wu, Shunan, Zhou, Wenya   +3 more
core   +1 more source

High Precision Navigation and Positioning for Multisource Sensors Based on Bibliometric and Contextual Analysis

Remote Sensing
With the increasing demand for high-precision positioning, integrated navigation technology has become a key approach to achieving accurate and reliable location tracking in modern intelligent mobile platforms.
Jiayi Wei, Min Song, Yunbin Yuan
doaj   +1 more source

NASA Automated Rendezvous and Capture Review. Executive summary [PDF]

In support of the Cargo Transfer Vehicle (CTV) Definition Studies in FY-92, the Advanced Program Development division of the Office of Space Flight at NASA Headquarters conducted an evaluation and review of the United States capabilities and state-of-the-

core   +1 more source

Helical automatic approaches of helicopters with microwave landing systems [PDF]

A program is under way to develop a data base for establishing navigation and guidance concepts for all-weather operation of rotorcraft. One of the objectives is to examine the feasibility of conducting simultaneous rotorcraft and conventional fixed-wing,
Dugan, D. C., Foster, J. D., Mcgee, L. A.   +2 more
core   +1 more source

New mechanization equations for aided inertial navigation systems [PDF]

Inertial navigation equations are developed which use area navigation (RNAV) waypoints and runway references as coodinate centers. The formulation is designed for aided inertial navigation systems and gives a high numerical accuracy through all phases of
Bjorkman, W. S., Conrad, B., Schmidt, S. F.   +2 more
core   +1 more source

Rotorcraft digital advanced avionics system (RODAAS) functional description [PDF]

A functional design of a rotorcraft digital advanced avionics system (RODAAS) to transfer the technology developed for general aviation in the Demonstration Advanced Avionics System (DAAS) program to rotorcraft operation was undertaken. The objective was
Bailey, J., Mcmanus, T. J., Peterson, E. M.   +2 more
core   +1 more source

Software modifications to the Demonstration Advanced Avionics Systems (DAAS) [PDF]

Critical information required for the design of integrated avionics suitable for generation aviation is applied towards software modifications for the Demonstration Advanced Avionics System (DAAS).
Hardy, G. H., Nedell, B. F.
core   +1 more source

NASA/USRA high altitude research aircraft. Gryphon: Soar like an eagle with the roar of a lion [PDF]

At the equator, the ozone layer ranges from 65,000 to 130,000+ feet. This is beyond the capabilities of the ER-2, which is NASA's current high altitude reconnaissance aircraft.
Coble, Scott, Mcray, Mike, Nunes, Anne, Ong, Audrey, Rivera, Jose, Wong, Walter   +5 more
core   +1 more source

Navigation systems for approach and landing of VTOL aircraft [PDF]

The formulation and implementation of navigation systems used for research investigations in the V/STOLAND avionics system are described. The navigation systems prove position and velocity in a cartestian reference frame aligned with the runway. They use
Mohr, R. L., Schmidt, S. F.
core   +1 more source