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Date: 2008
Subject Keyword:
080200 Computation Theory and Mathematics
| channel coding
| direction-of-arrival estimation
| frequency estimation
| information theory
| lattice theory
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/106346
Description:
4 page(s)
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Authors:
Nasimuddin,
| Esselle, Karu P
Date: 2007
Subject Keyword:
090600 Electrical and Electronic Engineering
| 100500 Communications Technologies
| Dielectric resonator antenna, hybrid antenna, microstrip antenna
| dielectric resonator antenna (DRA)
| high gain
| hybrid antenna
| microstrip antenna
| wide bandwidth
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/21483
Description:
We demonstrate a low-profile, compact antenna consisting of a cross dielectric resonator on a microstrip patch and a quasi-planar surface mounted short horn (SMSH). The measurements show a 10 dB retur
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Date: 2007
Subject Keyword:
direct sequence spread spectrum
| frequency-hopping sequence
| frequency-hopping spread spectrum
| norm function
| perfect nonlinear
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/21430
Description:
Frequency-hopping (FH) spread spectrum and direct-sequence spread spectrum are two main spread-coding technologies. Frequency-hopping sequences are needed in FH code-division multiple-access (CDMA) sy
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Authors:
Piper, James A
| Pask, Helen M
Date: 2007
Subject Keyword:
020500 Optical Physics
| all-solid-state Raman lasers
| continuous wave (CW) Raman lasers
| crystalline Raman lasers
| stimulated Raman scattering (SRS)
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/21616
Description:
In this paper, we review the developments of crystalline Raman lasers over the past five years. Average powers exceeding 5W and pulse energies above 1 J in the near infrared have been demonstrated for
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Date: 2007
Subject Keyword:
090600 Electrical and Electronic Engineering
| Electromagnetic band-gap (EBG), genetic algorithm (GA), high directivity, high gain, resonator antenna
| electromagnetic band-gap (EBG)
| genetic algorithm (GA)
| high directivity
| high gain
| resonator antenna
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/21462
Description:
In this letter, we present a method to enhance the gain of electromagnetic band-gap (EBG) resonator antennas composed of a single-substrate frequency-selective-surface (FSS) using a genetic algorithm
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Date: 2007
Subject Keyword:
080200 Computation Theory and Mathematics
| changeable threshold
| geometry of numbers
| lattice reduction
| Shamir secret-sharing
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/21415
Description:
We consider the problem of increasing the threshold parameter of a secret-sharing scheme after the setup (share distribution) phase, without further communication between the dealer and the shareholde
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Date: 2007
Subject Keyword:
020500 Optical Physics
| frequency conversion
| numerical modeling
| Raman lasers
| solid-state lasers
| stimulated Raman scattering (SRS)
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/21755
Description:
We present results from a simple numerical model simulating continuous wave (CW) intracavity Raman lasers and intracavity-doubled Raman lasers, which will guide optimization of experimental devices. W
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Authors:
Hanson, George W
| Smith, Paul
Date: 2007
Subject Keyword:
100500 Communications Technologies
| carbon nanotubes
| electromagnetic theory
| nanosphere
| nanotechnology
| optical antenna
| plasmons
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/21590
Description:
A model is presented for the electromagnetic interaction between a carbon nanotube and an electrically-small sphere, such as a plasmonic metal particle. The sphere is characterized by its dipole momen
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Authors:
Kiani, Ghaffer I
| Ford, Kenneth L
| Esselle, Karu P
| Weily, Andrew R
| Panagamuwa, Chinthana J
Date: 2007
Subject Keyword:
090600 Electrical and Electronic Engineering
| Absorver, delay spread, fading, Frequency selective surface, multilayers, multipath, oblique incidence
| absorber
| delay spread
| WLAN
| fading
| frequency selective surface (FSS)
| multilayers
| multipath
| oblique incidence
| security
| two-layers
| wireless networks
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/21452
Description:
Oblique incidence performance of a novel two-layer absorb/transmit frequency selective surface (FSS) is investigated. The FSS has good frequency stability for both horizontally and vertically polarize
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Authors:
Blockley, Peter Stuart
| Scott, Jonathan Brereton
| Gunyan, Daniel
| Parker, Anthony Edward
Date: 2007
Subject Keyword:
090600 Electrical and Electronic Engineering
| 100500 Communications Technologies
| "Nonlinear systems" "phase measurement" uncertainty
| nonlinear systems
| phase measurement
| uncertainty
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/21729
Description:
The uncertainty, due to random noise, of the measurements made with a mixer-based nonlinear vector network analyzer are analyzed. An approximate covariance matrix corresponding to the measurements is
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Date: 2007
Subject Keyword:
090600 Electrical and Electronic Engineering
| 100500 Communications Technologies
| Axial ratio, circular polarization, coaxial feed, microstrip antenna, patch antenna
| axial ratio (AR)
| circular polarization (CP)
| coaxial feed
| microstrip antenna
| patch antenna
| optimization
| stacked
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/21473
Description:
A simple technique is developed to improve the axial ratio (AR)-bandwidth and quality of circularly polarized stacked microstrip antennas (CPSMAs) using a new C-type single feed. The proposed antenna
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Date: 2006
Subject Keyword:
090600 Electrical and Electronic Engineering
| broadband antennas
| microstrip antennas
| wireless LAN
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/8955
Description:
A compact E-shaped microstrip patch antenna, which is significantly smaller than previous E-shaped patch antennas, is presented. The reduction in area is achieved by introducing corrugations into the
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Date: 2006
Subject Keyword:
090600 Electrical and Electronic Engineering
| frequency selective surface (FSS)
| multipath fading
| security
| wireless local area network (WLAN)
| wireless network
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/8932
Description:
A novel absorb/transmit frequency selective surface (FSS) is presented for 5-GHz wireless local area network (WLAN) applications. The novelty of the design is that it is capable of absorbing, as oppos
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Date: 2006
Subject Keyword:
020500 Optical Physics
| 090600 Electrical and Electronic Engineering
| dual wavelength laser
| erbium-doped fiber laser
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/15019
Description:
Stable continuous-wave lasing of two longitudinal modes of a distributed Bragg reflector fiber laser is reported. Intensity noise and coupling between the modes was characterized for both 0.8- and 0.2
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Authors:
Orgun, Mehmet A
| Xue, Liyin
Date: 2006
Subject Keyword:
080100 Artificial Intelligence and Image Processing
| collaborative work
| conflict resolution
| consistency maintenance
| multiuser negotiation
Language: eng
Resource Type: journal article
Identifier: http://hdl.handle.net/1959.14/8977
Description:
In this paper, we introduce a basic conceptual model of real-time collaborative editing systems which differentiates the coordination aspect of actions (which do not exist in single-user systems) from
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