Naval Postgraduate School
Theses and Dissertations
Now showing items 1-10 of 343
Wind turbine power generation emulation via doubly fed induction generator control
(Monterey, California. Naval Postgraduate School, 2009-12)
In this thesis, we emulate a Wind Turbine Generator by driving a Doubly Fed Induction Generator (DFIG) via a DC motor with variable input torque capability. The two circuits of concern are the DFIG and Supply-side circuits. ...
Fast generation and covering radius of Reed-Muller Codes
(Monterey, California. Naval Postgraduate School, 2009-12)
Reed-Muller codes are known to be some of the oldest, simplest and most elegant error correcting codes. Reed-Muller codes were invented in 1954 by D. E. Muller and I. S. Reed, and were an important extension of the Hamming ...
Design and development of an automated demodulator calibration station
(Monterey, California: Naval Postgraduate School, 2009-12)
This thesis describes the design and development of an automated demodulator calibration station. Many commercial demodulator boards have an inherent problem of DC offset due to their direct down conversion architecture. ...
A field programmable gate array based software defined radio design for the space environment
(Monterey, California: Naval Postgraduate School, 2009-12)
This thesis focuses on a Software Defined Radio (SDR) designed to compress a wideband radio signal input for a narrowband signal output. The design is based on a Field Programmable Gate Array (FPGA), which is chosen for ...
State-space modeling, system identification and control of a 4th order rotational mechanical system
(Monterey, California: Naval Postgraduate School, 2009-12)
In this thesis, a 4th order rotational mechanical plant provided by Educational Control Products is modeled from first principles and represented in state-space form. Identification of the state-space parameters was ...
Geolocation of WiMAX subscriber stations based on the timing adjust ranging parameter
(Monterey, California: Naval Postgraduate School, 2009-12)
This thesis investigates the possibility of geolocating a WiMAX subscriber station based on the timing adjust ranging parameter within the network signal internals. The basic approach to geolocation based on radial distances ...
Data acquisition via RS-232 and universal serial bus from a field programmable gate array
(Monterey, California: Naval Postgraduate School, 2009-12)
A Field Programmable Gate Array (FPGA) offers a flexible solution for transferring data obtained from hardware to a PC for analysis and storage. Traditionally, an RS-232 serial interface is used to connect hardware to the ...
Code optimization for the Choi-Williams distribution for ELINT applications
(Monterey, California. Naval Postgraduate School, 2009-12)
This thesis investigates optimizing the speed of computation for computing the Choi-Williams distribution. The Choi-Williams distribution is a way of simultaneously representing a signal in both the time and frequency ...
Performance analysis of a JTIDS/link-16-type waveform using 32-ary orthogonal signaling with 32 chip baseband waveforms and a concatenated code
(Monterey, California: Naval Postgraduate School, 2009-12)
The Joint Tactical Information Distribution System (JTIDS)) is a hybrid frequency-hopped, direct sequence spread spectrum system which used cyclic code-shift keying (CCFK) for M-ary symbol modulation and minimum shift-keying ...
A pulsed power system design using lithium-ion batteries and one charger per battery
(Monterey, California: Naval Postgraduate School, 2009-12)
The work documented in this thesis realizes a small-scale implementation of a Battery Management System (BMS) that has the charging, storage, and discharge capabilities to meet scaled down requirements of a pulsed power ...
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