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High resolution variable range gate generator with programmable timing

  • US 5,148,175 A
  • Filed: 07/05/1991
  • Issued: 09/15/1992
  • Est. Priority Date: 07/05/1991
  • Status: Expired due to Term
First Claim
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1. In a radar system having a transmitter activated by a trigger pulse and a receiver including range gate generator apparatus for generating a range gate of predetermined width following a controllable time interval after an occurrence of said trigger pulse, said range gate utilized to enable said receiver, said controllable time interval being controllable by a first digital signal, said range gate apparatus comprisingfirst programmable delay line means coupled to receive said trigger pulse and responsive to said first digital signal for propagating said trigger pulse along said first programmable delay line means to delay said trigger pulse in accordance with said first digital signal so as to provide a delayed trigger pulse delayed by said controllable time interval, andrange gate generator means coupled to said first programmable delay line means and responsive to said delayed trigger pulse for generating said range gate upon the occurrence of said delayed trigger pulse.

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