×

RADAR DETECTOR SYSTEM

  • US 3,614,626 A
  • Filed: 01/25/1966
  • Issued: 10/19/1971
  • Est. Priority Date: 01/25/1966
  • Status: Expired due to Term
First Claim
Patent Images

1. A system for detecting signals in the presence of noise comprising:

  • a source of sequential analog input data;

    a source of known noise data;

    means for separately converting said sequential analog input data and said known noise data to digital form;

    means for successively comparing the digital quantity of each increment of a determinable sequence of said input data with the digital quantity of each increment of a like sequence of known noise data, said means being responsive to the quantitative difference of each such incremental comparison for producing a signal commensurate with said difference;

    means connected to receive and sum the difference signals of each compared sequence; and

    means for comparing the said sum of said difference signals with a signal of predetermined quantitative significance, said means being operative to produce an output indicative of the presence of signal in said analog input data when said summed difference signals exceed said signal of predetermined quantitative significance, and to produce an output indicative of the absence of signal in said analog input data when said signal of predetermined quantitative significance exceeds said summed difference signals.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×