Optical: systems and elements – Optical computing without diffraction
Patent
1997-08-07
1998-09-08
Bacares, Rafael
Optical: systems and elements
Optical computing without diffraction
359191, 359305, 364822, H04B 1006
Patent
active
058053174
ABSTRACT:
An ultra-wideband signal processor, such as that employed for processing narrow time domain radar return pulses, includes a coherent acousto-optic Bragg cell channelizer having a plurality of IF outputs from which a plurality of IF output signals respectively representative of energy content of respectively different frequency portions of the RF input signal are derived. A summing circuit is coupled to sum the IF output signals to produce a summation signal representative of their average energy content. This average energy signal is compared with a threshold to determine if the input signal is a valid RF signal. A delay circuit delays a selected one of the IF output channels by a time sufficient to accommodate summation of the channelizer outputs and determining whether a valid RF signal is present. A digital signal processor processes the delayed selected output signal in response to the summation signal exceeding the threshold.
REFERENCES:
patent: 3936831 (1976-02-01), Jones
patent: 4328576 (1982-05-01), Oakley
patent: 4389093 (1983-06-01), Jackson
patent: 4448494 (1984-05-01), Freyre
patent: 4460250 (1984-07-01), Freyre et al.
patent: 4503388 (1985-03-01), Zehl et al.
patent: 5105380 (1992-04-01), Owechko
patent: 5315307 (1994-05-01), Tsui et al.
patent: 5404144 (1995-04-01), Vlannes
Hollingsworth Norman C.
Koontz Mark D.
Morse Randall K.
Snawerdt, III Peter F.
Bacares Rafael
Harris Corporation
Wands Charles E.
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