0
4.6kviews
Define following terms w.r.t. satellite - (i) Azimuth angle (ii) Elevation angle.
1 Answer
0
400views

a) Azimuth angle:

  • Azimuth is the horizontal angular distance from a reference direction, either the southern or northern most point of the horizon.
  • Azimuth angle is defined as the horizontal pointing angle of the earth station antenna. For navigation purposes, azimuth angle is usually measured in clockwise direction in degrees from true north.
  • However for satellite earth stations in the northern hemisphere and satellite vehicles in geosynchronous orbits, azimuth angle is generally referenced to true south.

b) Elevation angle:

  • Elevation angle is the vertical angle formed between the direction of travel of electromagnetic wave radiated from an earth station antenna pointing directly towards a satellite and horizontal plane.
  • The smaller the elevation angle , the greater the distance a propagated wave must pass through earth’s atmosphere.
  • If the angle of elevation is too small, and the wave travels through earth’s atmosphere is too long, the wave degrades the transmission quality.
Please log in to add an answer.