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Methods and systems for improving signal to phase noise in radars

  • US 9,864,044 B2
  • Filed: 06/25/2014
  • Issued: 01/09/2018
  • Est. Priority Date: 06/25/2014
  • Status: Active Grant
First Claim
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1. A method for increasing sensitivity of Doppler radar receivers, the method comprising:

  • transmitting at a transmitter a predetermined pulse repetition frequency (PRF) that is a multiple of inverse time delay for a predetermined range from a target of interest to position nulls in a filter function multiplying a power spectral density of phase noise to cancel portions of the power spectral density of the phase noise;

    the portions of the power spectral density of the phase noise being selected so that effect of phase noise in radar sensitivity is reduced.

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