Communications: directive radio wave systems and devices (e.g. – Clutter elimination
Reexamination Certificate
2006-03-01
2011-11-15
Alsomiri, Isam (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Clutter elimination
C342S084000, C375S146000
Reexamination Certificate
active
08059026
ABSTRACT:
An ultra-wideband pulse Doppler radar employing a transform domain communication system class of output waveform, a waveform additionally modified for enhanced radar usage. The achieved waveform includes sequential radar output pulse discrimination, improved pulse repetition frequency range ambiguity, phase modulation generating a noise-like output signal appearance and improved resolution characteristics. The invention employs radar waveform shaping in the frequency domain according to a sample of present operating band interference conditions followed by transformation into the time domain for fabricating an output pulse waveform. Mathematical basis for the improved output waveform and correlation comparisons in graphical form are included in the disclosure.
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Caldwell James T.
Nunez Abel S.
AFMCLO/JAZ
Alsomiri Isam
Hollins Gerald B.
The United States of America as represented by the Secretary of
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