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System and method for improving infrared detector performance in dual detector system

  • US 20080218340A1
  • Filed: 03/07/2007
  • Published: 09/11/2008
  • Est. Priority Date: 03/07/2007
  • Status: Active Grant
First Claim
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1. A system for improving false alarm immunity for a dual intrusion detector, the dual intrusion detector including at least one microwave sensor and at least one passive infrared sensor, the system comprising:

  • multiple range bins for classifying microwave signals;

    a range determination module for estimating a target range based on a state of each of the multiple range bins; and

    an infrared sensitivity determination mechanism for determining an optimal infrared sensor sensitivity level based on the estimated target range.

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