Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 1207 for “"broadband"”.
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Broadband terahertz photonics
… require sources that are both powerful and broadband. Having said that, there is no fundamental reason why quantum cascade lasers should be restricted to narrowband outputs. In fact, they possess gain spectra that are intrinsically broad, and beyond that can even be tailored to cover an …
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Ultrafast Broadband Terahertz Spectroscopy
This dissertation centers on broadband terahertz spectroscopy and is arranged in four main sections. In the first section, we describe terahertz generation from a two-color laser air breakdown plasma. This is modeled with a plasma current that includes plasma density and dispersion in propagation. …
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Hybrid wireless broadband networks
… in this thesis referring to wireless broadband networks. However, to provide end-to-end quality of service (QoS) in a hybrid system is a challenging task due to different protocol in each system. In this thesis, we aim to improve the overall performance of hybrid networks in a disaster …
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Bursting the broadband bubble
Broadband has revolutionised the way the Internet is used and has become the critical enabling infrastructure of our modem and knowledge-based economy. Its widespread introduction has not only greatly enhanced the speed at which information online can be accessed, but also the range and …
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Broadband Helical Dipole Arrays
Made available in DSpace on 2014-12-08T22:23:53Z (GMT). No. of bitstreams: 1 6604305.pdf: 4848445 bytes, checksum: c3ad9d46a6ac38b12e2e8584b9595b2b (MD5) Previous issue date: 1965
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Broadband frequency-independent beamforming
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.
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Accessible broadband network analysis
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.
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Positioning of wireless broadband
Thesis (M.S.)--Massachusetts Institute of Technology, Sloan School of Management, 1996.
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Improved broadband adaptive beamformer performance
… some form of active interference suppression. Broadband adaptive beamforming is one such technique which may be used to suppress interference by spatial and spectral filtering of the signals received by an array antenna. The hardware requirements of adaptive Beamforming systems are high in …
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Broadband whole package FDTD simulation
… thesis is to find and implement a new method for broadband whole package simulation. 3-dimension (3-D) whole package Finite Difference Time Domain (FDTD) simulation result was first reported in detail in this thesis. The FDTD method is a widely used full-wave time-domain simulation method used in …
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Broadband Multilevel Fast Multipole Methods
… than the wavelength, which is the case for broadband simulations. Broadband simulations are becoming increasingly important, for example in the simulation of high frequency printed circuit boards and microwave circuits, metamaterials or the scattering of radar waves off complex shapes. …
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Development of ultra-broadband modulators
… onto an optical carrier. Modulation with ultra-broadband capability enables the generation of arbitrary waveforms using the electro-optic effect. By separating an incoming pulsed optical source into a frequency comb through the use of arrayed waveguide gratings, and employing both phase and …
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Broadband nanosensing using heterodyne interferometry
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.
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Broadband satellite constellation design & evaluation
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 2001.
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Miniaturized Antenna for Satellite Broadband Application
… satellite internet system. High directivity, broadband characteristics, and circularly polarized radiations are essential for a user antenna to maintain a reliable connection with the overhead LEO satellite constellation. For commercialization and portability, the antenna is preferred to be …
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Broadband World Modeling and Scene Reconstruction
… robotics perception systems. By implementing a broadband passive sensing system in conjunction with current perception algorithms, this thesis explores scene reconstruction and world modeling. The process involves two main steps. The first is stereo correspondence using block matching algorithms …
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Safeguarding the National Broadband Map: Detecting Strategic Misreporting and Auditing Broadband Deployment via a Risk-Based Monitoring System
The National Broadband Map (NBM) serves as the source of truth for determining location eligibility for funding programs, most notably, the Broadband Equity, Access, and Deployment (BEAD) program that allocated an unprecedented $42.45 billion that aspire to provide universal internet access in the …
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Integration of broadband direct-conversion quadrature modulators
… quadrature modulator with special emphasis on broadband, multimode radio-compatible operation. A model of the direct-conversion quadrature modulator operation has been developed, which reveals the effect the circuit non-linearities and mismatch-related offsets have on available performance. …
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