Detection of narrow pulses
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United States of America Patent
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Mar 2, 1982
Grant Date -
N/A
app pub date -
May 2, 1979
filing date -
May 30, 1978
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention is concerned with the detection of the presence of narrow pulses in an electrical signal such as that derived from a limited band width receiver. A first discriminator is provided for discriminating against pulses other than those having a ratio of amplitude to width characteristic of a desired narrow pulse. A second discriminator is provided for discriminating against pulses other than those having a width characteristic of a desired narrow pulse and a third discriminator is provided for discriminating against pulses other than those which have a symmetry characteristic of a desired narrow pulse. The input is applied to the first and second discriminators in parallel with the third discriminator arranged to be effective only for those pulses which have not been discriminated against by the first and second discriminators.
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