<p> In the past, analog circuits, discrete digital logic
circuits or minicomputers have been used to implement the signal
processing section of a sonar systems. More recently, microprocessor
based logic circuit designs have produced a new breed of
system design approach which gives designers the flexibility that
has never been available through the use of analog or discrete
logic circuits; however, due to the inherent slow speed of the
metal-oxide semiconductor (MOS) logic circuits, incorporating
microprocessors in the implementation of a sonar signal processor
is not feasible. With the advent of bipolar Schottky large scale
integrated circuit technology, the speed performance of the microprocessors
have been improved considerably, and signal processor
designs employing microprocessors are now feasible. </p> <p> The main objective of this work is to design, implement,
and test a real-time digital sonar signal processor for processing
pulsed CW signals. With design based on the use of the bit slice
microprocessor, a signal processor has been constructed that has
an 8 bit input, a 16 bit output. The processor is capable of
detecting 16 different Doppler shifts. Laboratory generated
signals are used in the testing and the experimental results show
good agreement with the theory. A possible means of expanding the
existing single channel signal processor into a multichannel
processor has also been outlined. </p> / Thesis / Master of Engineering (MEngr)
| Identifer | oai:union.ndltd.org:mcmaster.ca/oai:macsphere.mcmaster.ca:11375/19608 |
| Date | 09 1900 |
| Creators | Man, John |
| Contributors | Carter, C. R., Electrical Engineering |
| Source Sets | McMaster University |
| Language | English |
| Detected Language | English |
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