Electrical transmission or interconnection systems – Wave form or wave shape determinative or pulse-producing...
Patent
1986-08-18
1988-04-19
Shoop, Jr., William M.
Electrical transmission or interconnection systems
Wave form or wave shape determinative or pulse-producing...
307 96, 342201, 455226, 364724, H04B 1700
Patent
active
047391863
ABSTRACT:
A system for generating a sequence of pulses of carrier having individually selectable frequencies employs a pulsed oscillator for providing a single pulse of a carrier signal having a predetermined frequency. The single pulse is applied to a dispersive filter imparting a delay to signals dependent of their spectral content. The relatively broad spectrum of the single pulse is converted by the dispersive filter into a swept frequency pulse of much longer duration than the input pulse to the filter. The expanded signal is mixed with a set of mixing frequencies to provide a set of expanded signals, each of which is then gated to attain spectral portions having desired average values of frequency. The expanded signals are then summed together and applied to a compressive filter which operates in the mirror-image format to the dispersive filter. The compressive filter compresses each of the pulses of the expanded signals to a narrow pulse signal, the compressive filter outputting a succession of compressed pulses having carrier frequencies corresponding to those selected during the gating of the expanded signals.
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Hughes Aircraft Company
Ip Paul
Karambelas A. W.
Meltzer M. J.
Mitchell S. M.
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