Naval Postgraduate School
Theses and Dissertations
Now showing items 31-40 of 65
Performance analysis of the effect of pulsed-noise interference on WLAN signals transmitted over a Nakagami fading channel
(Monterey California. Naval Postgraduate School, 2004-03)
of IEEE 802.11a standard. The signal is subject to pulsednoise jamming, when either the desired signal alone or the desired signal and the jamming signal are subject to Nakagami fading. As expected, the implementation of ...
Synchronization analysis and simulation of a standard IEEE 802.11g OFDM signal
(Monterey, California. Naval Postgraduate School, 2004-03)
Synchronization of orthogonal frequency-division multiplexed (OFDM) signals is significantly more difficult than synchronization of a single-carrier system. The recently approved IEEE Standard 802.11g specifies a packet-based ...
An investigation of wireless solutions for the "Last Mile"
(Monterey, California. Naval Postgraduate School, 2004-03)
The need for broadband network access is experiencing rapid growth, but what is currently available is not sufficient. Copper-based technologies cannot address the requirements of today's bandwidth-intensive Internet ...
Triple modular redundancy (TMR) in a configurable fault-tolerant processor (CFTP) for space applications
(Monterey, California. Naval Postgraduate School, 2003-12)
Without the protection of atmosphere, space systems have to mitigate radiation effects. Several different technologies are used to deal with different radiation effects in order to keep the space device work properly. One ...
Network-based control, monitoring and calibration of shipboard sensors
(Monterey, California. Naval Postgraduate School, 2003-09)
The objective of this thesis is to develop a new calibration system for analog and smart digital pressure sensors, operable by only one person, and capable of calibrating local and remote sensors connected via RS232 cables, ...
Radiation dose analysis of NPS flash X-ray facility using silicon PIN diode
(Monterey, California. Naval Postgraduate School, 2003-09)
Radiation output of the NPS Flash X-ray facility has been analyzed using commercial silicon PIN diodes. These results have been compared to dosimetry techniques using CaF2 TLDs (thermoluminescent dosimeters). The silicon ...
VHDL modeling and simulation of a digital image synthesizer for countering ISAR
(Monterey, California. Naval Postgraduate School, 2003-06)
This thesis discusses VHDL modeling and simulation of a full custom Application Specific Integrated Circuit (ASIC) for a Digital Image Synthesizer (DIS). The DIS synthesizes the characteristic echo signature of a pre-selected ...
Shipboard sensor closed-loop calibration using wireless LANs and DataSocket transport protocols
(Monterey, California. Naval Postgraduate School, 2003-06)
This thesis studies the feasibility of developing a closed-loop shipboard sensor calibration system with two main objectives. The first objective was to reduce the number of personnel required to calibrate ...
Performance of acoustic spread-spectrum signaling in simulated ocean channels
(Monterey, California. Naval Postgraduate School, 2003-06)
Direct-Sequence Spread Spectrum (DSSS) modulation is being advanced as the physical-layer basis for Seaweb undersea acoustic networking. DSSS meets the need for channel tolerance, transmission security, and multi-user ...
Passive Geolocation in a 4G WIMAX Single Base Station Scenario
(Monterey, California. Naval Postgraduate School, 2003-06)
The proliferation of Fourth Generation (4G) mobile wireless networks has led to an increased demand for position-based services. In many densely populated environments, there is an abundance of base stations by which a ...
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Electrical Engineering (65)