Method and apparatus for making airborne radar horizon...

Communications: directive radio wave systems and devices (e.g. – Radar for meteorological use

Reexamination Certificate

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C342S02600R, C342S118000, C342S134000, C342S175000, C342S195000, C702S001000, C702S002000, C702S003000

Reexamination Certificate

active

07872603

ABSTRACT:
A method for determining a refractivity profile of an atmosphere of the Earth. The method may involve: generating radar signals from a radar device located above the Earth's surface toward the Earth's surface; measuring a time of flight and a reflected intensity of reflected radar signals received back at the radar device; using the measured time of flight and the reflected intensity of the reflected radar signals received by the radar device to determine a distance to a radar horizon where the radar signals are tangent to the Earth's surface; and using the distance to the radar horizon to determine a refractivity profile of the atmosphere through which the radar signals and the reflected radar signals have travelled.

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