E-Pilots: A system to predict hard landing during the approach phase of commercial flights

We consider hostile conflicts between two multi-agent swarms. First, we investigate the complex nature of a single pursuer attempting to intercept a single evader (1P-1E), and establish some rudimentary rules of engagement. We elaborate on the stability repercussions of these rules. Second, we extend the modelling and stability analysis between multi-agent swarms of pursuers and evaders. The present document considers only swarms with equal membership strengths for simplicity. This effort is based on a set of suggested momenta deployed on individual agents. Due to the strong nonlinearities, Lyapunov-based stability analysis is used. The control of a group pursuit is divided into two phases: the approach phase during which the two swarms act like individuals in the 1P-1E interaction; and the assigned pursuit phase where each pursuer is assigned to an evader. A dissipative control momentum was suggested in an earlier publication, which caused undesirable control chatter. This study introduces a distributed control logic which ameliorates the chatter problems considerably.

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ESA Lunar Lander: Approach Phase Concept and G&C Performance

AIAA Guidance, Navigation, and Control (GNC) Conference ◽

10.2514/6.2013-5018 ◽

2013 ◽

Cited By ~ 2

Author(s):

Murray Kerr ◽

Miguel Hagenfeldt ◽

Jose A. Ospina ◽

Luis F. Penin ◽

Marco Mammarella ◽

...

Keyword(s):

Lunar Lander ◽

Approach Phase

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Self-Controlled Concurrent Feedback Facilitates the Learning of the Final Approach Phase in a Fixed-Base Flight Simulator

Human Factors The Journal of the Human Factors and Ergonomics Society ◽

10.1177/0018720809357343 ◽

2009 ◽

Vol 51 (6) ◽

pp. 858-871 ◽

Cited By ~ 13

Author(s):

Michaël Huet ◽

David M. Jacobs ◽

Cyril Camachon ◽

Cedric Goulon ◽

Gilles Montagne

Keyword(s):

Flight Simulator ◽

Final Approach ◽

Fixed Base ◽

Approach Phase

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An autonomous navigation scheme for UAV in approach phase

2016 IEEE Chinese Guidance, Navigation and Control Conference (CGNCC) ◽

10.1109/cgncc.2016.7828919 ◽

2016 ◽

Author(s):

Zhuoning Dong ◽

Wenbin Li ◽

Yanxing Zhou

Keyword(s):

Autonomous Navigation ◽

Navigation Scheme ◽

Approach Phase

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Evidence of Motor Planning in Infant Reaching Behavior

Psychological Science ◽

10.1111/1467-9280.24421 ◽

2003 ◽

Vol 14 (4) ◽

pp. 354-356 ◽

Cited By ~ 92

Author(s):

Laura J. Claxton ◽

Rachel Keen ◽

Michael E. McCarty

Keyword(s):

Motion Analysis ◽

Motor Planning ◽

Motion Analysis System ◽

Analysis System ◽

Kinematic Measures ◽

Approach Phase

When adults reach for an object, kinematic measures of their approach movement are affected by what they intend to do after grasping it. We examined whether such future intended actions would be reflected in the approach-to-grasp phase of infant reaching. Twenty-one 10-month-old infants were encouraged to either throw a ball into a tub or fit it down a tube. Kinematic measures of the approach phase of the reach toward the ball were obtained using a motion analysis system. Infants, like adults, reached for the ball faster if they were going to subsequently throw it as opposed to using it in the precision action. The perceptual aspects of the ball were the same and cannot account for these kinematic differences. Infants appear to be planning both segments of their actions in advance. Our findings provide evidence for a level of sophistication in infant motor planning not reported before.

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Analysis of Ephemeris Errors in Autonomous Celestial Navigation during Mars Approach Phase

Journal of Navigation ◽

10.1017/s0373463316000734 ◽

2016 ◽

Vol 70 (3) ◽

pp. 505-526 ◽

Cited By ~ 3

Author(s):

Xiaolin Ning ◽

Zhuo Li ◽

Yuqing Yang ◽

Jiancheng Fang ◽

Gang Liu

Keyword(s):

Navigation System ◽

Autonomous Navigation ◽

Great Influence ◽

Position Error ◽

The Sun ◽

Deep Space ◽

Velocity Error ◽

Celestial Navigation ◽

Approach Phase ◽

Autonomous Navigation System

A Celestial Navigation System (CNS) is a feasible and economical autonomous navigation system for deep-space probes. Ephemeris errors have a great influence on the performance of CNSs during the Mars approach phase, but there are few research studies on this problem. In this paper, the analysis shows that the ephemeris error of Mars is slowly-varying, while the ephemeris error of Phobos and Deimos is periodical. The influence of the ephemeris errors of Mars and its satellites is analysed in relation to both the Sun-centred frame and the Mars-centred frame. The simulations show that the position error of a probe relative to the Sun caused by the Mars ephemeris error is almost equal to the ephemeris error itself, that the velocity error is affected slightly, and that the position and velocity relative to Mars are hardly affected. The navigation result of a Mars probe is also greatly affected by the quantities and periodicities of the ephemeris errors of Phobos and Deimos, especially that of Deimos.

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