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FM/CW radar linearization network and method therefor

  • US 4,539,565 A
  • Filed: 08/16/1982
  • Issued: 09/03/1985
  • Est. Priority Date: 08/16/1982
  • Status: Expired due to Fees
First Claim
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1. An FM/CW radar linearization network compensating for random variations in the linearity of the frequency sweep of the radar transmitter in the processing of the radar receiver signal characteristic of the range and physical size of a target to provide target identification data discriminating said target from background reflections, said network comprising:

  • a. raw target data generating means for developing a target data signal containing frequency un-normalized target identification information, wherein the instantaneous frequency of said target data signal is characteristic of the range of a target and the amplitude of said target data signal is characteristic of the size of said target at that range;

    b. transmitter characteristic data generating means for developing a sampling signal containing transmitter frequency sweep information;

    c. error data generating means receiving said sampling signal for developing an error signal characteristic of any nonlinearity in the sweep of the transmitter frequency; and

    ,d. linearization means receiving said raw target data signal and said error signal for frequency normalizing target identification information by compensation for any random variation in the linearity of the sweep of transmitter frequency.

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