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Profiling of selected atmospheric characteristics utilizing passive microwave remote sensing

  • US 5,526,676 A
  • Filed: 02/07/1995
  • Issued: 06/18/1996
  • Est. Priority Date: 02/11/1994
  • Status: Expired due to Term
First Claim
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1. For use in a passive remote sensing device having antenna means for receiving atmospheric microwave emissions containing frequencies of interest, an apparatus for providing a profile of a selected atmospheric characteristic comprising:

  • continuously tunable oscillating means for providing a plurality of selected frequency outputs; and

    downconverting means for receiving said plurality of selected frequency outputs from said oscillating means and said emissions from said antenna means and, responsive thereto, providing output signals indicative of microwave energy emitted by the atmosphere at said frequencies of interest and representing said profile of said atmospheric characteristic.

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