Results 221 to 230 of about 35,734 (259)

Optimal waveform selection in range-Doppler imaging

Proceedings of 1st International Conference on Image Processing, 2002
Solves the problem of adaptively selecting a set of N radar waveforms to obtain the optimal L/sub 2/ estimate of a target range-Doppler reflectivity function. The authors assume that the targets correspond to one of two classes. They show that the waveform selection strategy involves an initial class identification phase followed by a pure imaging ...
Sameh M. Sowelam, Ahmed H. Tewfik
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Adaptive waveform selection for tracking in clutter

Proceedings of 1994 American Control Conference - ACC '94, 2005
Presents an adaptive waveform selective probabilistic data association (WSPDA) algorithm for tracking a single target in clutter. The assumption of an optimal receiver allows the inclusion of transmitted waveform specification parameters in the tracking subsystem equations, leading to a waveform selection scheme where the next transmitted waveform ...
D.J. Kershaw, R.J. Evans
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Waveform selective probabilistic data association

IEEE Transactions on Aerospace and Electronic Systems, 1997
An adaptive, waveform selective probabilistic data association (WSPDA) algorithm for tracking a single target in clutter is presented. The assumption of an optimal receiver allows the inclusion of transmitted waveform specification parameters in the tracking subsystem equations, leading to a waveform selection scheme where the next transmitted waveform
D.J. Kershaw, R.J. Evans
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Information Theoretic Criterion for Waveform Selection

Fourth IEEE Workshop on Sensor Array and Multichannel Processing, 2006., 2006
A novel criterion for waveform selection in adaptive radar and other sensing applications is presented that is based on the information theoretic concept of mutual information. In addition, its application to the area of waveform diversity for synthetic aperture radar (SAR) systems is examined. Mutual information is a measure of the information (in the
J.R. Roman, J.W. Garnham, P. Antonik
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Algorithmic Selection of Acoustic Waveforms

The Journal of the Acoustical Society of America, 1967
The choice of acoustic waveform is studied within the category of widely spaced FM pulses for the goal of optimum resolution between overlapping arrivals. For a given average frequency and pulse time length, it is analytically apparent that there exists a wide variety of monotonic F-t shapes that have the same average frequency, time length or number ...
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Stimulus waveforms for selective neural stimulation

IEEE Engineering in Medicine and Biology Magazine, 1995
The authors review recent efforts to design stimulus waveforms for selective electrical stimulation of the nervous system. Two types of selectivity are considered. Fiber diameter selectivity refers to the ability to activate one group of nerve fibers having a common diameter without activating nerve fibers having different diameters.
W.M. Grill, J.T. Mortimer
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Metasurfaces to select waveforms at the same frequency

2014 8th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics, 2014
We present a new concept of metasurfaces that vary the electromagnetic responses depending not only on the frequency of an incoming surface wave but also on the waveform. Such waveform selectivity is achieved by integrating the rectification of schottky diodes with time domain responses of capacitors and inductors. This new characteristic enables us to
H. Wakatsuchi, J.J. Rushton, S. Kim, D.F. Sievenpiper   +3 more
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A Methodology for Waveform Selection in an FDM Environment

22nd AIAA International Communications Satellite Systems Conference & Exhibit 2004 (ICSSC), 2004
This paper presents a methodology for waveform selection in an FDM environment typical of a commercial communication satellite uplink signal structure. The environment will consider the effects of imperfect uplink power control and amplification and compare various modulation and coding options. Candidate modulations include filtered 2-ary, 4-ary and 8-
Cyrus Dhalla, H. Berger, Jean-Marc Cramer, Ronald Squires   +3 more
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Electrocutaneous Nerve Stimulation-II: Stimulus Waveform Selection

IEEE Transactions on Biomedical Engineering, 1979
The large number of investigations involving the use of electrocutaneous nerve stimulation as a surrogate sensory channel, and for relief of acute and chronic pain, have raised questions about the effect of the stimulus parameters on both nerve excitation and passive tissue heating.
R, Bütikofer, P D, Lawrence
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Colored Noise and Regularization Parameter Selection for Waveform Metrology

IEEE Transactions on Instrumentation and Measurement, 2014
We study six algorithms to select a regularization parameter for deconvolution problems appearing in high-speed communication measurement applications. We investigate these algorithms in the presence of unspecified noise correlation analyzing their performance as components of a multivariate random variable and study their joint distribution by Monte ...
Andrew M. Dienstfrey, Paul D. Hale
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