×

System and method for ice detection

  • US 9,244,166 B1
  • Filed: 03/15/2013
  • Issued: 01/26/2016
  • Est. Priority Date: 03/07/2008
  • Status: Active Grant
First Claim
Patent Images

1. An aircraft hazard warning system, comprising:

  • an electronic processing system for determining a presence of ice crystals, the processing system being configured to receive radar reflectivity data and temperature data, the processing system being configured to determine an ice crystal warning by;

    1. determining a size of a convective cell using the radar reflectivity data and temperature data and determining a blow off area associated with the convective cell in response to the size and a wind direction parameter, the blow off area being an area where ice crystals migrate due to wind;

    or2. determining a size of a stratiform region and determining a presence of a convective cell previously in the stratiform region; and

    3. wherein the radar reflectivity data comprises reflectivity data corresponding to at least two frequencies from a multi-frequency radar system, and wherein the processing system is configured to determine the ice crystal warning based at least in part on a comparison of the reflectivity data corresponding to the at least two frequencies from the multi-frequency radar;

    or4. wherein the radar reflectivity data comprises at least two polarization diverse radar signals received from a polarization diversity radar system, and wherein the processing system is configured to determine the ice crystal warning based at least in part on a comparison of the at least two polarization diverse radar signals.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×