Rekabentuk sistem boleh terima kegagalan berasaskan DSP
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Date
1997-04
Authors
Nordin, Meor Bukhairi
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Abstract
The use of DSP processor based systems has been widespread, particularly in real time
applications requiring a high degree of processing power. This is primarily due to the
decreasing cost to performance ratio of DSP processors. Example of such applications
include defence, aerospace, telecommunication, medical and many others.
For these critical applications, system reliability is equally important. Therefore,
the combined issues of fast data processing and high reliability is of great interest to
critical real time systems developers.
In this project, a DSP based architecture, with such features is developed. As a
case study, a radar tracking application is implemented on the system since it is an
example of a critical system that requires a high level of processing rate and reliability.
Several radar tracking algorithms such as Kalman filtering and data correlation
technique are implemented to analyse its performance.
In order to determine the level of reliability, several formulation and testing
procedures are derived and introduced. The simulation results predicted a high degree of
reliability for the actual operational performance of the system.
With the rapidly advancing technology, it is now feasible to implement
reconfigurable logic to further increase the system's reliability. In this research, an
alternative design using FPGAs is proposed. It is used to replace the bus switching
functions because of its ability to reconfigure dynamically and thus enabling switching
to be implemented more efficiently. Analysis on the effect of using more highly
integrated components ( which, in turn reduces the chip count ) on the overall system
reliability indicates very promising results.
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Keywords
Kegagalan berasaskan DSP