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Showing 1 to 20 of 348 for “"Incoherent"”.
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Greedy Algorithms and Incoherent Systems
<p>This dissertation concerns estimates on the size of sets that have small coherence among the elements, the latest best upper bound on the rate of convergence of greedy expansions, and explicit formulas for approximants from the Pure Greedy Algorithm.</p>
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Space-variant incoherent optical processing using color
Incoherent optical processing techniques offer superior noise immunity, among other benefits, over coherent optical processing techniques. However, the complex amplitude linearity exhibited by coherent optical systems that provides a natural means for performing operations on complex functions, is …
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Incoherent scatter modeling of Jicamarca radar spectra
… equatorial ionosphere probed by the Jicamarca Incoherent Scatter Radar (ISR) located near Lima, Peru. The topside equatorial ionosphere is a multi-ion plasma and the spectrum of its electron density irregularities can be modeled by extending the single-ion spectral model developed by Kudeki and …
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Vacuum-mediated incoherent processes in coherently prepared media
… <br>has also been devoted to the study of incoherent processes, such as the <br>spontaneous emission of light by an atom mediated by the surrounding vacuum <br>field. One of the reasons for this interest is that the decoherence due to <br>incoherent processes is one of the major limitations …
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Incoherent short pulse scattering from penetrable geophysical media
A new model for incoherent short pulse scattering from penetrable geophysical media is developed. The model is obtained by assuming that the surface and volume scattered components of the total scattered waveform only minimally interact. A well-known form is used for the surface scattered component …
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MIMO Communication Capacity: Antenna Coupling and Precoding for Incoherent Detection
… to different users on the same fiber while using incoherent detection with amplitude and phase modulation at the transmitter. The resulting capacity scales nearly linearly with the number of transmitters and receivers. Because the architecture requires channel state information at the transmitter, …
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The impact of WH/TS codes in implementing incoherent OCDMA system
… (LAN) and last-mile application. I have built an incoherent OCDMA system, whose performance I investigated, including the influence of chromatic dispersion, timing jitter and the effect of ambient temperature fluctuations on data transmission over a 17-km bidirectional fibre link (a testbed) I …
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Protein Dynamics : Comparison of Incoherent Neutron Scattering and Molecular Dynamics Simulation
Proteindynamik und deren Beziehung zur biologischen Funktion von Proteinen ist Gegenstand zahlreicher experimenteller und theoretischer Untersuchungen. In der vorgelegten Arbeit werden Aspekte der Proteindynamik im Pico- und Nanosekundenbereich untersucht. Experimentelle Untersuchungen haben eine …
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Incoherent Scattering of Microwaves From Enhanced Density Fluctuations Ina Dc-Discharge
Made available in DSpace on 2015-05-12T21:41:41Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 6801719.PDF: 1804068 bytes, checksum: 58f74a612f34ba4224d24607c2123df2 (MD5) Previous issue date: 1967
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Remote Sensing of the Mesosphere Using the Jicamarca Incoherent-Scatter Radar
Made available in DSpace on 2014-12-12T20:54:10Z (GMT). No. of bitstreams: 1 7524387.pdf: 8450797 bytes, checksum: 0bec28cc661cc24643ef4e724614b8c6 (MD5) Previous issue date: 1975
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Inversion of Arecibo incoherent scatter radar coded long pulse backscatter spectra
Incoherent scatter radar (ISR) at Arecibo Observatory measures the scattering of electromagnetic waves from random density fluctuations of ionospheric plasma particles (electrons and ions). Information about particle temperatures, ion concentrations, and Doppler shifts caused by particle motions …
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Incoherent projection Moire contour sensing with coherent processing for large structures
… theory and results of three Moire methods 1) the incoherent projection Moire method, 2) the electronic phase detection method, and 3) the fringe multiplication method. It is proposed that these three methods be used together in a system to measure out-of-plane displacements of large diffusely …
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Architecting, programming, and evaluating an on-chip incoherent multi-processor memory hierarchy
… an environment, which can use scratchpads or incoherent caches, is challenging. Hence, this thesis focuses on architecting, programming, and evaluating an on-chip incoherent multiprocessor memory hierarchy. This thesis starts by examining incoherent multiprocessor caches. It proposes ISA …
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Incoherent scattering of microwaves from enhanced density fluctuations in a DC-discharge
… discharge enclosed in a 1"" square waveguide and incoherent scattering in the upper sideband is investigated. Scattering is observed in the backward and forward directions from the naturally enhanced density fluctuations in two electron plasma modes for gas pressures between -3 -3"" 3.8xlO Torr …
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