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Now showing items 11-20 of 50
EXPLORING THE CAPABILITIES OF THE AGILE BEAM PHASED ARRAY WEATHER RADAR
(2009)
Weather radar researchers have long been eager to exploit the capabilities of phased array antennas, but high cost and technical complexity have postponed their widespread use in radar meteorology. With the aging of the ...
DETECTION THRESHOLDS FOR SPECTRAL MOMENTS AND POLARIMETRIC VARIABLES
(2008)
Presently, the Signal-to-Noise-Ratio (SNR) measurement is used to determine the presence of a weather signal for Weather Surveillance Radar - 1988 Doppler (WSR-88D). Growing popularity of polarimetric radars prompts the ...
WAAS error, integrity and availability modeling for GPS based aircraft landing system.
(2004)
From its initial conception to deployment, the Wide Area Augmentation System (WAAS) was hailed as revolutionary for the navigation industry. However, the WAAS deployment effort has suffered significant delays and budget ...
Design of low-density parity-check codes for magnetic recording channels.
(2002)
A technique for designing low-density parity-check (LDPC) error correcting codes for use with the partial-response channels commonly used in magnetic recording is presented. This technique combines the well-known density ...
TOWARD A MORE CLARIFIED DETECTIVE QUANTUM EFFICIENCY METHODOLOGY: STUDY OF THE DQE THEORY AND APPLICATIONS
(2009)
Detective quantum efficiency (DQE) is widely accepted as the golden rule to objectively evaluate the performance of x-ray imaging systems. It provides a comprehensive characterization of an x-ray imaging system, because ...
Fuzzy correlation and regression analysis.
(2005)
The first half of the dissertation focuses on the motivation and concept of fuzzy correlation. Fuzzy data will be formulated in a mathematical way, and then we will build models of two types of fuzzy correlations, their ...
IDENTIFICATION OF EXTREMELY LOW FREQUENCY ERROR COMPONENTS IN THE GLOBAL POSITIONING SYSTEM (GPS)/WIDE AREA AUGMENTATION SYSTEM (WAAS) POSITION SOLUTION
(2009)
The Wide Area Augmentation System (WAAS) was intended to "augment" the basic Global Positioning System (GPS) navigation service to the necessary level to support precision approach operations equivalent to the Instrument ...
Generation asset planning under uncertainty.
(2005)
With the introduction of competition in the electric power industry, generation asset planning must change. In this changed environment, energy companies must be able to capture the extrinsic value of their asset operations ...
Analog free-space optical links.
(2005)
Free-space optics (FSO) communications is a technology that uses modulated infrared optical beams to transmit information line-of-sight through the atmosphere. There has been a substantial increase in the use of FSO ...
Performance evaluation of the third generation TD-SCDMA system.
(2004)
Firstly, a basic reverse TD-SCDMA system is setup, including a transmitter, a receiver and a channel. Within the receiver model, a specific soft Viterbi decoding algorithm is developed. Secondly, the system synchronization ...