Zobrazeno 1 - 10
of 68
pro vyhledávání: '"R.G. Hutchins"'
Publikováno v:
IEEE Transactions on Aerospace and Electronic Systems. 31:138-150
Most model-based tracking algorithms represent the temporal dynamics of a maneuver acceleration with a Markov process. The sample paths so generated may not be plausible. A renewal process model is shown to be more realistic, but a tracker based upon
Publikováno v:
Proceedings of the IEEE. 81:797-814
The performance of an image-enhanced estimator is contrasted with that of the extended Kalman filter (EKF). A scenario in which a planar agile target moves with intermittent maneuvers is studied. The performance comparison clearly indicates that imag
Publikováno v:
Automatica. 29:445-449
To justify the introduction of new sensor hardware, the potential performance improvement must be sufficient to warrant the additional expense and potential design risks that a change in system architecture entails. This paper compares the response o
Publikováno v:
SoSE
Boost-phase intercept of a threat intercontinental ballistic missile (ICBM) is the first layer of a multi-layered missile defense strategy. Space-based interceptors possess certain kinematic advantages over ground-based interceptors in defeating an I
Autor:
D.D. Sworder, R.G. Hutchins
Publikováno v:
IEEE Transactions on Aerospace and Electronic Systems. 26:625-638
An image-based algorithm which provides an estimate of the current radial acceleration of a target is studied. Since the data in a single image frame provide information only on the orientation of the target, a sequence of frames must be processed to
Publikováno v:
Conference Record of the Thirty-Ninth Asilomar Conference onSignals, Systems and Computers, 2005..
A hybrid model integrates a family of local representations to create a global description of a system operating in a heterogeneous environment. The common hybrid models have been developed for aerial applications and are not well suited for ground m
Publikováno v:
2006 Fortieth Asilomar Conference on Signals, Systems and Computers.
Model-based trackers generate a synthetic distribution function for the kinematic state of the target. The mean is used to locate the target, and the covariance is used to generate a confidence region about the mean. We shall show that a map-enhanced
Publikováno v:
The Thrity-Seventh Asilomar Conference on Signals, Systems & Computers, 2003.
Considerable work has been done on receiver design for slowly varying, random communication channels. This paper employs a hybrid estimation approach to develop a receiver that is useful when the channel is more volatile. An example illustrates the t
Publikováno v:
Conference Record of the Thirty-Third Asilomar Conference on Signals, Systems, and Computers (Cat. No.CH37020).
In an environment subject to sudden change, the accuracy of tracking and prediction is strongly influenced both by the sensor architecture and by the quality of the individual sensors. This paper presents a performance analysis of an image-enhanced a
Publikováno v:
[1992] Conference Record of the Twenty-Sixth Asilomar Conference on Signals, Systems & Computers.
It is shown that the response of an image-enhanced tracking loop is superior to that attainable from conventional trackers without imaging capability. Because of the non-Gaussian nature of the problem and the nonlinearities in the motion model, it is