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Now showing items 21-30 of 83
TIME AND FREQUENCY CHARACTERISTIC OF 802.11AX
(2019-12-12)
Wireless Local Area Network (WLAN) is a wireless communication system that connects two or more devices using radio frequency to form a local network (LAN). WLAN is used inside buildings (e.g., apartment, campus, train ...
Investigation of a Frequency and Pattern Reconfigurable Slot Array Utilizing Ring Resonator End Loads
(2017-12)
Fixed-bandwidth wireless systems are forced to operate in preallocated blocks of frequencies, often wasting valuable spectrum. Whereas, systems with reconfigurable antennas that can tune resonant frequency, polarization, ...
Digital Radar Implementation With System Response Compensation Through Amplitude Predistortion
(2016-12-16)
Radars traditionally synthesize waveforms by using a variety of analog electronics. These analog components are collectively referred to as the analog chain. A typical electronic analog chain contains multiple components, ...
Objective Characterization of In-line Phase Contrast X-ray Imaging Prototype Using a Mid-energy Beam
(2019-08)
The purpose of the research presented in this thesis is the characterization of an in-line phase contrast x-ray imaging prototype operating at mid-energy, and to compare the data to that of high energy imaging with the ...
Radar Cross Section Analysis of Tornadic Debris
(2016-12-16)
Weather radar is a powerful tool for detecting hazardous weather that may impact citizens. Among these dangerous weather phenomena, tornadoes have a high potential for destruction of property and loss of life due to its ...
Interference Mitigation using Reconfigurable RF Components
(2017)
The need for efficient spectrum management continues to grow as
the number of users of wireless technologies continues to increase.
Solutions to this problem include cognitive radio systems, which aim to
adaptively ...
Accurate vehicle classification including motorcycles using piezoelectric sensors
(2012)
State and federal departments of transportation are charged with classifying vehicles and monitoring mileage traveled. Accurate data reporting enables suitable roadway design for safety and capacity. Vehicle classifier ...
UAV-Based In Situ Antenna Characterization: Analysis and Design Requirements
(2018-05-11)
This thesis proposes to characterize antennas in situ with Unmanned Aerial Vehicles (UAVs), especially within the framework of weather radar and 5th generation wireless systems (5G) antennas. Specifically, it is concerned ...
GAIT ANALYSIS OF PEOPLE WITH TRANSTIBIAL AMPUTATION
(2017-05-12)
Causes of transtibial (below knee) amputation vary from traumatic events such as accidents to vascular and circulatory disorders. Following amputation, the individual is fitted with a prosthetic device in order to regain ...
LOW-COST, SOFTWARE DEFINED FMCW RADAR FOR OBSERVATIONS OF DRONES
(2017-05-12)
This thesis focuses on implementing a small, low-cost, Frequency-Modulated-Continuous-Wave (FMCW) radar sensor using Software-Defined Radio (SDR) platforms. Extensive investigation and comparisons of existing SDRs are ...