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Agent detection in the presence of background clutter

  • US 7,525,102 B1
  • Filed: 10/02/2006
  • Issued: 04/28/2009
  • Est. Priority Date: 10/03/2005
  • Status: Expired due to Fees
First Claim
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1. A method of detecting an agent in a bulk sample including at least one background constituent, comprising:

  • utilizing a measurement modality to interrogate the sample with electromagnetic radiation so as to generate spectral data corresponding thereto,deriving principal components of the sample spectral data,applying a rotate-and-suppress transformation to said principal components of the sample data, wherein said transformation suppresses a contribution of at least one background constituent, if present, andcomparing said transformed principal components of the sample data with background-suppressed principal components of corresponding spectral data of an agent to determine whether said agent is present in the bulk sample.

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