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Grazing Angle

ψg=sin-1(hR)
h
R
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The Grazing Angle calculator computes the angle above the horizon to a radar antenna.

INSTRUCTIONS: Choose units and enter the following:

  • (R)  This is the range to the radar.
  • (h)  This is the height of the radar.

Grazing Angle (ψ):" The calculator return the grazing angle in degrees.  However this can be automatically converted to other angle units via the pull-down menu.  To compute the Grazing Angle considering the curvature of the Earth, CLICK HERE.

The Math / Science

/attachments/14e3bc3f-2dcd-11e6-9770-bc764e2038f2/GrazingAngle.png The formula for the grazing angle is:

   ψ

where:

  • ψg = grazing angle
  • R = range to radar
  • h = height of radar

The Grazing Angle equationSignal-to-Noise of a Synthetic Aperture Radar.

Radar Calculators

/attachments/9963c8d9-7a3b-11e8-abb7-bc764e2038f2/SlantRangeBeta.png

3D Vector Calculator Functions

  1. ^ Performance Limits for Synthetic Aperture Radar - Second Edition.  Sandia National Laboratories, Albuquerque, NM.  Printed February 2006.