Current Search: Engineering (x)
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Pages
- Title
- A Survey of Medical Diagnostic Software.
- Creator
-
Stein, Steven, ,, Engineering
- Abstract / Description
-
Florida Technological University College of Engineering Thesis; The field of medical diagnostic software is reviewed to define its status in the medical profession. This is accomplished in a two-step procedure. The first step is a cross-section of literature on the topic, and the second step is a survey of physicians in a sample area. The cross-section of literature presents some of the more advanced studies which have been conducted on medical diagnostic software. Also presented is an...
Show moreFlorida Technological University College of Engineering Thesis; The field of medical diagnostic software is reviewed to define its status in the medical profession. This is accomplished in a two-step procedure. The first step is a cross-section of literature on the topic, and the second step is a survey of physicians in a sample area. The cross-section of literature presents some of the more advanced studies which have been conducted on medical diagnostic software. Also presented is an explanation of the logic used in diagnostic software and the results of several test cases. The survey was of physicians in the Orlando, Florida area to define the actual application of medical diagnostic software. It presented a sample of physicians' feelings concerning the present use of medical diagnostic software. From these steps, the present status of medical diagnostic software is defined and projections concerning its future made.
Show less - Date Issued
- 1973
- Identifier
- CFR0008127, ucf:52956
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFR0008127
- Title
- A GPSS/360 Computer Model for Simulation of Automobile Traffic at Intersections.
- Creator
-
Golovcsenko, Igor V., ,, Engineering
- Abstract / Description
-
Florida Technological University College of Engineering Thesis
- Date Issued
- 1974
- Identifier
- CFR0011598, ucf:53135
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFR0011598
- Title
- An efficient method for representing and computing transitive closure over temporal relations.
- Creator
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Kovarik, Vincent J., Gonzalez, Avelino, Engineering
- Abstract / Description
-
University of Central Florida College of Engineering Thesis; The need for temporal reasoning is found throughout the engineering disciplines. James Allen introduced a representation for temporal reasoning based upon the concept of intervals. This approach provides a rich set of temporal relations for reasoning over events and changes in state. The full temporal algebra is NP-complete however. The algorithm developed by Allen executes in 0(n3) time but only ensures consistency between any...
Show moreUniversity of Central Florida College of Engineering Thesis; The need for temporal reasoning is found throughout the engineering disciplines. James Allen introduced a representation for temporal reasoning based upon the concept of intervals. This approach provides a rich set of temporal relations for reasoning over events and changes in state. The full temporal algebra is NP-complete however. The algorithm developed by Allen executes in 0(n3) time but only ensures consistency between any three intervals. This research presents an approach to representing interval relations as a bit-encoded form which captures the relationships between the end-points of the intervals. A bit-algebra is then defined which provides an algorithmic method for computing transitive relations without requiring the table lookup of Allen's algorithm. By reducing the set of ambiguous interval representations to the set of relationships which have unknown temporal extent, a robust subset of the full algebra is defined which maintains the direct computation of transitive relationships.
Show less - Date Issued
- 1994
- Identifier
- CFR0001859, ucf:52919
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFR0001859
- Title
- Dynamic modeling of pwm and single-switch single-stage power factor correction converters.
- Creator
-
Zhu, Guangyong, Batarseh, Issa E., Engineering
- Abstract / Description
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University of Central Florida College of Engineering Thesis; The concept of averaging has been used extensively in the modeling of power electronic circuits to overcome their inherent time-variant nature. Among various methods, the PWM switch modeling approach is most widely accepted in the study of closed-loop stability and transient response because of its accuracy and simplicity. However, a non-ideal PWM switch model considering conduction losses is not available except for converters...
Show moreUniversity of Central Florida College of Engineering Thesis; The concept of averaging has been used extensively in the modeling of power electronic circuits to overcome their inherent time-variant nature. Among various methods, the PWM switch modeling approach is most widely accepted in the study of closed-loop stability and transient response because of its accuracy and simplicity. However, a non-ideal PWM switch model considering conduction losses is not available except for converters operating in continuous conduction mode (CCM) and under small ripple conditions. Modeling of conductor losses under large ripple conditions has not been reported in the open literature, especially when the converter operates in discontinuous conduction mode (DCM). In this dissertation, new models are developed to include conduction losses in the non-ideal PWM switch model under CCM and DCM conditions. The developed model is verified through two converter examples and the effect of conduction losses on the steady state and dynamic responses of the converter is also studied. Another major constraint of the PWM switch modeling approach is that it heavily relies on finding the three-terminal PWM switch. This requirement severely limits its application in modeling single-switch single-stage power factor correction (PFC) converters, where more complex topological structures and switching actions are often encountered. In this work, we developed a new modeling approach which extends the PWM switch concept by identifying the charging and discharging voltages applied to the inductors. The new method can be easily applied to derive large-signal models for a large group of PFC converters and the procedure is elaborated through a specific example. Finally, analytical results regarding harmonic contents and power factors of various PWM converters in PFC applications are also presented here.
Show less - Date Issued
- 1999
- Identifier
- CFR0001716, ucf:52925
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFR0001716
- Title
- Analysis of frequency selective surfaces with ferrite substrates.
- Creator
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Liu, Youcheng, Christodoulou, Christos, Engineering
- Abstract / Description
-
University of Central Florida College of Engineering Thesis; Frequency selective surfaces (FSS) have numerous applications in several microwave and optical systems. In this work, instead of traditional dielectric substrates, ferrite substrates are used under different dc bias conditions.
- Date Issued
- 1996
- Identifier
- CFR0000784, ucf:52927
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFR0000784
- Title
- Numerical, image, and signal processing algorithms applied to radar rainfall estimation.
- Creator
-
Lane, John Eugene, Kasparis, Takis, Engineering
- Abstract / Description
-
University of Central Florida College of Engineering Thesis; The main focus of this dissertation research has been to develop and analyze methods of rain gauge and radar correlation for the purpose of optimizing rainfall estimates.
- Date Issued
- 2001
- Identifier
- CFR0000782, ucf:52926
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFR0000782
- Title
- Synthesis of numerical integrators for the real-time digital simulation of continuous systems.
- Creator
-
Panzitta, Michael James, Klee, Harold I., Engineering
- Abstract / Description
-
University of Central Florida College of Engineering Thesis; Real-time digital simulation is a powerful means for engineers and scientists in government, industry, and academia to perform research and training as well as serving as a basis for many commercial applications. Due to the special constraints imposed by digitally simulating continuous systems in real time, however, many of these systems either require costly high-speed components or are unable to provide suitable performance...
Show moreUniversity of Central Florida College of Engineering Thesis; Real-time digital simulation is a powerful means for engineers and scientists in government, industry, and academia to perform research and training as well as serving as a basis for many commercial applications. Due to the special constraints imposed by digitally simulating continuous systems in real time, however, many of these systems either require costly high-speed components or are unable to provide suitable performance characteristics using affordable computers. This dissertation describes a new technique for the synthesis of numerical integrators specifically designed for the real-time digital simulation of continuous systems. This methodology is based upon the fact that the state derivatives in a simulation model typically have a significantly limited bandwidth. This information is exploited to improve the efficiency of numerical integrators by selecting the coefficients of a general-form integrator such that it approximates an ideal integrator over the limited frequency spectrum of the state derivative.
Show less - Date Issued
- 1994
- Identifier
- CFR0001376, ucf:52923
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFR0001376
- Title
- The generation of synthetic speech sounds by digital coding.
- Creator
-
Steinberger, Eddy Alan, null, null, Engineering
- Abstract / Description
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FLorida Technological University College of Engineering Thesis; The feasibility of representing human speech by serial digital codes was investigated by exercising specially constructed digital logic coupled with standard audio output equipment. The theories being tested represent a radical departure from previous efforts in the field of speech research. Therefore, this initial investigation was limited in scope to a study of unconnected English language speech sounds at the phenome level.
- Date Issued
- 1975
- Identifier
- CFR0002823, ucf:52917
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFR0002823
- Title
- Counterpropagation neural network detection of visual primitives.
- Creator
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Johnson, Cynthia Lynn, Myler, Harley R., Engineering
- Abstract / Description
-
University of Central Florida College of Engineering Thesis; Psychological testing has shown that there is an early preattentive stage in the human visual system. At this level, simple features and properties of objects known as visual primitives are deteched spatially in parallel by groupings of cells in the visual cortex known as feature maps. In order to study this preattentive stage in a machine vision system, the biologically inspired, highly parallel architecture of the artificial...
Show moreUniversity of Central Florida College of Engineering Thesis; Psychological testing has shown that there is an early preattentive stage in the human visual system. At this level, simple features and properties of objects known as visual primitives are deteched spatially in parallel by groupings of cells in the visual cortex known as feature maps. In order to study this preattentive stage in a machine vision system, the biologically inspired, highly parallel architecture of the artificial neural network shows great promise. This paper describes how the unique architecture of the counterpropagation neural network was used to simulate the feature maps which detect visual primitives in the human visual system. The results of the research showed that artificial neural networks are able to reproduce the function of the feature maps with accuracy. The counterpropagation network was able to reproduce the feature maps as theorized, however, future research might investigate the abilities of other neural network algorithms in this area. Development of a method for combining the results of feature maps in a simulation of full scale early vision is also a topic for future research that would benefit from the results reported here.
Show less - Date Issued
- 1990
- Identifier
- CFR0008146, ucf:52942
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFR0008146
- Title
- Stormwater Management for Urban Areas.
- Creator
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Chancellor, Gerald L., Wanielista, Martin P., Engineering
- Abstract / Description
-
Florida Technological University College of Engineering Thesis; Stormwater management in urban areas is a major concern today. The problem of disposing of this stormwater runoff in a satisfactory manner is very difficult indeed. Both the quantity and quality aspects of the runoff must be dealt with to obtain a solution of this problem. The water quality of the runoff can vary depending upon the different land uses of the drainage basin. The quantity of the stormwater runoff also depends upon...
Show moreFlorida Technological University College of Engineering Thesis; Stormwater management in urban areas is a major concern today. The problem of disposing of this stormwater runoff in a satisfactory manner is very difficult indeed. Both the quantity and quality aspects of the runoff must be dealt with to obtain a solution of this problem. The water quality of the runoff can vary depending upon the different land uses of the drainage basin. The quantity of the stormwater runoff also depends upon the land uses, the rainfall intensity and duration of the storm. The traditional methods available for determining the quantity of the stormwater runoff are numerous. These traditional methods and recently developed mathematical simulation models are discussed in this paper. Prediction of the water quality of stormwater runoff is in its infancy. Several of the mathematical models have the capabilities of quality simulation, however, the simulation results are usually inconsistent with actual quality data. Of the simulation models currently in use, the EPA Storm Water Management Model is one of the most comprehensive models. Application and verification of these newly developed models is limited. The EPA Model was chosen to simulate the quantity and quality of a small urban drainage area. The study area chosen was an urban commercial section of the Lake Eola drainage basin. Physical data of the study area, such as ground slopes, storm swere sizes and locations and slopes were determined. This data was then utilized for simulations of actual rainfall events. Verification of the quantity and quality simulation results was performed with actual quantity and quality data obtained for these rainfall events. Quantity simulation was considered successful with good correlation between the simulated and actual runoff. Quality simulation was successful to a lesser degree, the conclusion being that further quality calibration of the Model was required. Correlation between actual and simulated stormwater quality was achieved to some extent. The lack of correlation was felt to be due to calibration of the Model.
Show less - Date Issued
- 1975
- Identifier
- CFR0008137, ucf:52951
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFR0008137
- Title
- Development and saw device implementation of a new weighted stepped chirp code signal for direct sequence spread spectrum communications systems.
- Creator
-
Carter, Scott Edward, Malocha, Donald C., Engineering
- Abstract / Description
-
University of Central Florida College of Engineering Thesis; This work introduces the new weighted stepped chirp code signal for direct sequence spread spectrum (DS/SS) communications systems. This code signal uses the truncated cosine series functions as the chip functions. This code signal is the result of discretizing a continuous wave (CW) chirp which results in enhanced performance versus a pseudonoise (PN) cose and equivalent performance and easier implementation than a CW chirp. This...
Show moreUniversity of Central Florida College of Engineering Thesis; This work introduces the new weighted stepped chirp code signal for direct sequence spread spectrum (DS/SS) communications systems. This code signal uses the truncated cosine series functions as the chip functions. This code signal is the result of discretizing a continuous wave (CW) chirp which results in enhanced performance versus a pseudonoise (PN) cose and equivalent performance and easier implementation than a CW chirp. This code signal will be shown to possess improved compression ratio (CR), peak sidelobe level (PSL), integrated sidelobe level (ISL), and bit error rate (BER) when compared to a PN code of identical code length and chip length. It also will be shown to have a similar CR, PSL, ISL, and loss in processing gain (LPG) when compared to a CW chirp with identical pulse length and frequency deviation. The code signal is implemented on surface acoustic wave (SAW) devices which can be used as the code signal generator at the transmitter and the correlator at the receiver in a DS/SS communication system. SAW design considerations for the weighted stepped chirp signal are discussed. Experimental data is presented and compared to the predicted CR, PSL, ISL, LPG, and BER.
Show less - Date Issued
- 1998
- Identifier
- CFR0008153, ucf:52944
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFR0008153
- Title
- Molecular Size Distributions of Heavy Metals in Lake Washington.
- Creator
-
Andrews, William B., Taylor, James S., Engineering
- Abstract / Description
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University of Central Florida College of Engineering Thesis; Four untreated and one magnesium treated water samples from Lake Washington, the potable water source for the city of Melbourne, Florida, were collected and analyzed for As, Cd, Cr, Cu, Fe, Pb, Ni, Zn, Mb, Ca, and color on the basis of molecular weight distribution. Molecular weight distributions of the samples were obtained using a Millipore ultrafiltration system and filters in the following sizes: 106, 105, 2.5 x 104, 104, and...
Show moreUniversity of Central Florida College of Engineering Thesis; Four untreated and one magnesium treated water samples from Lake Washington, the potable water source for the city of Melbourne, Florida, were collected and analyzed for As, Cd, Cr, Cu, Fe, Pb, Ni, Zn, Mb, Ca, and color on the basis of molecular weight distribution. Molecular weight distributions of the samples were obtained using a Millipore ultrafiltration system and filters in the following sizes: 106, 105, 2.5 x 104, 104, and 103 nominal molecular weight limits (nmwl). color causing materials in the untreated samples were found to be located in the molecular weight fraction greater than 2.5 x 104 nmwl. The majoity of the metals concentrations (approximately greater than 80%) were also found to be located in the molecular weight fraction greater than 2.5 x 104 nmwl. Analysis of the magnesium treated (for maximum color removal) sample showed higher concentrations of metals passing the respective filter sizes as opposed to the untreated samples indicating less complexation or smaller molecular complexes of the metals. Thus, a fairly strong correlation betwee heavy metals concentrations and colorin the Lake Washington samples was indicated.
Show less - Date Issued
- 1979
- Identifier
- CFR0008138, ucf:52945
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFR0008138
- Title
- Infiltration in Stormwater Detention/ Percolation Basin Design.
- Creator
-
Beaver, Robert D., Hartman, J Paul, Engineering
- Abstract / Description
-
Florida Technological University College of Engineering Thesis; Investigations of soil parameters, infiltration testing, and storm observations are used to determine the infiltration characteristics for three Central Florida stormwater holding basins. Basic soil parameters are investigated and a value for available soil water storage is computed from these data. In-situ permeability and infiltration tests are used to obtain field permeability and infiltration rates. Infiltration test results...
Show moreFlorida Technological University College of Engineering Thesis; Investigations of soil parameters, infiltration testing, and storm observations are used to determine the infiltration characteristics for three Central Florida stormwater holding basins. Basic soil parameters are investigated and a value for available soil water storage is computed from these data. In-situ permeability and infiltration tests are used to obtain field permeability and infiltration rates. Infiltration test results may be applied to infiltration theory. Data from infiltration tests may be verified using available soil water storage computed from soil parameters. The effect of soil cover conditions is noted and investigated using the drum infiltrometer. Storm observations are used to confirm infiltration models. Infrequency of rainfall activity limited the number and reliability of observations. The effects of precipitation frequency and input intensity to the pond also noted in storm observations. A design procedure incorporating infiltration in stormwater retention basins is presented. This design procedure is based on infiltration theory and observed pond operation.
Show less - Date Issued
- 1977
- Identifier
- CFR0008151, ucf:52946
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFR0008151
- Title
- Suspended Solids and Deep Well Injection Systems.
- Creator
-
Smedley, D. Robert, Hartman, J. Paul, Engineering
- Abstract / Description
-
Florida Technological University College of Engineering Thesis; A test method and the associated equipment have been developed to investigate the effect of suspended solids on the flow of fluid into a deep injection well system. Preliminary testing indicates that the equipment and test method can be used to determine the permeability of rock samples with a high degree of accuracy. Additionally, this equipment can be used in a testing program which will eventually lead to the development of...
Show moreFlorida Technological University College of Engineering Thesis; A test method and the associated equipment have been developed to investigate the effect of suspended solids on the flow of fluid into a deep injection well system. Preliminary testing indicates that the equipment and test method can be used to determine the permeability of rock samples with a high degree of accuracy. Additionally, this equipment can be used in a testing program which will eventually lead to the development of guidelines for the degree of pre-injection treatment required for suspended solids so that the operational life of the well is not impaired.
Show less - Date Issued
- 1975
- Identifier
- CFR0008135, ucf:52948
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFR0008135
- Title
- Sewer System Design for Camp Challenge and Determination of Per Capita Wastewater Flows from Vacation Facilities.
- Creator
-
Goucher, William C., Wanielista, Martin P., Engineering
- Abstract / Description
-
Florida Technological University College of Engineering Thesis; A sewer system was designed for Camp Challenge of the Florida Easter Seal Society, in Mount Plymouth, Florida, of polyvinyl chloride piping. Invert elevations were tabulized and necessary fittings determined for the system. Cost estimates were also included. The sewers were designed on a per fixture basis so as not to overdesign usng per capita flow rates. A literature and records search was conducted to obtain design and actual...
Show moreFlorida Technological University College of Engineering Thesis; A sewer system was designed for Camp Challenge of the Florida Easter Seal Society, in Mount Plymouth, Florida, of polyvinyl chloride piping. Invert elevations were tabulized and necessary fittings determined for the system. Cost estimates were also included. The sewers were designed on a per fixture basis so as not to overdesign usng per capita flow rates. A literature and records search was conducted to obtain design and actual wastewater flow quantities in gallons per capita per day (gpcd). Actual flows determined from 4 camps and 11 travel trailer parks gave average values of 39 and 33 gpcd, respectively, and can be used as design parameters for wastewater treatment facilities. However, further investigations and intensive flow monitoring are deemed necessary to provide a wider, more accurate data base with less variability.
Show less - Date Issued
- 1976
- Identifier
- CFR0008136, ucf:52950
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFR0008136
- Title
- Measuring and compensating for transport delay in real-time interactive driving simulation.
- Creator
-
Dumas, Joseph D., Klee, Harold I., Engineering
- Abstract / Description
-
University of Central Florida College of Engineering Thesis; Real-time, man-in-the-loop simulators are important tools for operator training as well as human performance research. Simulator implementation using digital computers offers many important advantages but may also cause problems. One of the most significant and troublesome artifacts of digital computer simulation is the presence of transport delays in the operator/vehicle control loop. Transport delays have been shown to destabilize...
Show moreUniversity of Central Florida College of Engineering Thesis; Real-time, man-in-the-loop simulators are important tools for operator training as well as human performance research. Simulator implementation using digital computers offers many important advantages but may also cause problems. One of the most significant and troublesome artifacts of digital computer simulation is the presence of transport delays in the operator/vehicle control loop. Transport delays have been shown to destabilize the system, resulting in poorer control of the simulated vehicle. They may also contribute to an increased likelihood of simulator sickness in human operators. Therefore, it is desirable to be able to quantify simulator transport delays and to compensate the system in such a way that delay effects on operator performance and well-being are minimized. The research presented in this dissertation involved the measurement of simulator transport delay using two different methods: a time-domain approach involving the detection of a response to a simulated step control input, and a frequency-domain approach involving the measurement of phase shift from a simulated sinusoidal input. Algorithmic compensators (digital filters) were developed to provide phase lead to counteract the system transport delay. Two compensators designed using approaches previously described in the literature canceled out delay reasonably well; however, a new compensator design developed by the author provided more nearly ideal phase performance without introducing unwanted side effects such as visual jitter. The transport delay measurement and compensation techniques were applied to a low-cost, real-time interactive automobile driving simulator developed at the University of Central Florida. The investigations using both measurement techniques revealed that a substantial amount of delay was present in the system. The three delay compensators implemented in the simulator were found (by reapplication of the frequency-domain or steady-state delay measurement technique) to operate approximately as designed. Finally, a driver-in-the-loop experiment was conducted to assess the effect of delay compensation on driver/vehicle performance. While the small size of the experiment allowed no definite conclusions to be drawn regarding the efficacy of compensation, trends in the data were generally indicative of better performance with compensation.
Show less - Date Issued
- 1993
- Identifier
- CFR0000192, ucf:52933
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFR0000192
- Title
- A unified approach to dynamic modeling of high switching frequency pwm converters.
- Creator
-
Iannello, Christopher J., Batarseh, Issa, Engineering
- Abstract / Description
-
University of Central Florida College of Engineering Thesis; This dissertation will present the development of a unified approach for dynamic modeling of the PWM and soft-switching power converters. Dynamic modeling of non-linear power converters is very important for the design and stability of their closed loop control. While the use of equivalent circuits is often preferred due to simulation efficiency issues, no unified and widely applicable method for the formulation of these equivalents...
Show moreUniversity of Central Florida College of Engineering Thesis; This dissertation will present the development of a unified approach for dynamic modeling of the PWM and soft-switching power converters. Dynamic modeling of non-linear power converters is very important for the design and stability of their closed loop control. While the use of equivalent circuits is often preferred due to simulation efficiency issues, no unified and widely applicable method for the formulation of these equivalents exists.
Show less - Date Issued
- 2001
- Identifier
- CFR0000833, ucf:52929
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFR0000833
- Title
- Finite impulse response utilizing the principles of superposition.
- Creator
-
Carter, Scott Edward, Malocha, Donald C., Engineering
- Abstract / Description
-
University of Central Florida College of Engineering Thesis; Window functions have been greatly utilized in the synthesis of finite impulse response (FIR) filters implemented using surface acoustic wave (SAW) devices. The critical parameter in any FIR design in the impulse response length, which must be optimized for the given design specifications in order to reduce the size of each device. To this end, many design algorithms have been introduced such as Remez exchange, linear programming,...
Show moreUniversity of Central Florida College of Engineering Thesis; Window functions have been greatly utilized in the synthesis of finite impulse response (FIR) filters implemented using surface acoustic wave (SAW) devices. The critical parameter in any FIR design in the impulse response length, which must be optimized for the given design specifications in order to reduce the size of each device. To this end, many design algorithms have been introduced such as Remez exchange, linear programming, and least mean squares. A new algorithm has been derived which is efficient and accurate for the design of arbitrary filter specifications requiring less computations than the current algorithms. The FIR design is applicaable to general SAW filter design and allows two weighted transducers to be designed in a near optimal method without the need to perform zero aplitting of de-convolution. The thesis first provides the definition of the window functions used for the design process. Then the overview of the design process is discussed using a flowchart of the modeling program for designing and FIR without tranducer separation and sample simulation is presented. Next, the effects of monotonically increasing sidelobes on the transition bandwidth are discussed. This is followed by a discussion of the addition of arbitary phase to the filter design requirements. Next, the separation of the response into a two transducer design utilizing the two window function series is explained. Finally, the results are discussed and compared with other design techniques.
Show less - Date Issued
- 1995
- Identifier
- CFR0000186, ucf:52937
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFR0000186
- Title
- Tessellation for computer image generation.
- Creator
-
Panzitta, Michael James, Bauer, Christian S., Engineering
- Abstract / Description
-
University of Central Florida College of Engineering Thesis; Of the vast number of algorithms used in modern computer image generation, most rely upon data bases comprised of polygons. This becomes a severe impediment when curved objects must be modeled and displayed with an acceptable level of speed and accuracy. A technique is needed to provide a means of modeling curved surfaces, storing them in a data base, and displaying them using existing algorithms. Tessellation is one method of...
Show moreUniversity of Central Florida College of Engineering Thesis; Of the vast number of algorithms used in modern computer image generation, most rely upon data bases comprised of polygons. This becomes a severe impediment when curved objects must be modeled and displayed with an acceptable level of speed and accuracy. A technique is needed to provide a means of modeling curved surfaces, storing them in a data base, and displaying them using existing algorithms. Tessellation is one method of achieving such goals.
Show less - Date Issued
- 1987
- Identifier
- CFR0001375, ucf:52922
- Format
- Document (PDF)
- PURL
- http://purl.flvc.org/ucf/fd/CFR0001375