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Stabilization system environmental disturbance modeling and analysis
Title
Stabilization system environmental disturbance modeling and analysis.
Creator
Sieb, Lawrence E., Simmons, Fred O., Engineering
Abstract / Description
Florida Technological University College of Engineering Thesis; Systems that operate in airborne environments and rely on the resolution provided by optical sensors require a stabilization system to isolate the line-of-sight (LOS) from the operating environment. For systems employing television sensors, stabilization accuracy is of prime importance in maintaining sufficient picture resolution to allow target identification and recognition at maximum ranges. The development of system models...
Show moreFlorida Technological University College of Engineering Thesis; Systems that operate in airborne environments and rely on the resolution provided by optical sensors require a stabilization system to isolate the line-of-sight (LOS) from the operating environment. For systems employing television sensors, stabilization accuracy is of prime importance in maintaining sufficient picture resolution to allow target identification and recognition at maximum ranges. The development of system models that accurately predict stabilization performance is important both in design trade-offs and in the system design and testing [l]. Two basic concepts are available for achieving LOS stabilization; momentum stabilization which employs a spinning mass and rate stabilization which utilizes inertial rate sensors. Previously rate stabilized platforms have been employed for high performance laser designator systems mounted in aircraft while momentum stabilized platforms have been used on tactical missiles. Rate stabilized platforms have not been used often in tactical missiles due to their higher cost and the lack of high performance stabilization requirements over large field-of-regards on the missile seekers.
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Date Issued
1975
Identifier
CFR0004428, ucf:52977
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFR0004428
A microcomputer implementation of real time, continuously programmable digital filters
Title
A microcomputer implementation of real time, continuously programmable digital filters.
Creator
Storma, William Edward, Simmons, Fred O., Engineering
Abstract / Description
University of Central Florida College of Engineering Thesis; When a filter transfer function in s is replaced with the bilinear transform in z, t he resulting discrete model represents the original continuous model within a second order accuracy of integration. A unique set of recently discovered minimum memory algorithms that perform the bilinear transform on a continuous transfer function are implemented on an INTEL 8080 microprocessor system. Scal1ng techniques are used to frequency scale...
Show moreUniversity of Central Florida College of Engineering Thesis; When a filter transfer function in s is replaced with the bilinear transform in z, t he resulting discrete model represents the original continuous model within a second order accuracy of integration. A unique set of recently discovered minimum memory algorithms that perform the bilinear transform on a continuous transfer function are implemented on an INTEL 8080 microprocessor system. Scal1ng techniques are used to frequency scale all transfer functions to a standardized frequency. All data words are represented in a signed binary double precision format to maintain higher calculation speed and accuracy. Three test case transfer functions of different order are implemented using the bilinear transform algorithms. First, the algorithms are used to generate the three discrete models. Second, the continuous time models are driven by a step input function, generating a continuous time output. Third, the step function input is discretized and used to drive the bilinear algorithm derived models. Finally, the discrete outputs are compared with the continuous time outputs to validate and evaluate the software techniques used to implement the bilinear algorithms, which imply that the techniques provide a basis for new hardware designs.
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Date Issued
1979
Identifier
CFR0003497, ucf:53140
Format
Document (PDF)
PURL
http://purl.flvc.org/ucf/fd/CFR0003497