Title :
Angle-of-arrival of a radar beam in atmospheric turbulence
Author :
McMillan, R.W. ; Smith, R.A. ; Shipman, M. ; Holder, E.J. ; Kerce, J.C. ; Williams, J.
Author_Institution :
U.S. Army Space & Missile Defense Command, Huntsville, AL, USA
Abstract :
Atmospheric turbulence has been shown to have measurable effects on the angle-of-arrival (AOA) of radar beams, but these effects are on the order of a few microradians, which is a negligible level for most applications. In this paper, we present a theory describing this phenomenon and compare this theory to one-way measurements made over a 3.5 km path and two-way measurements made over a 25 km path using an X-band interferometric radar.
Keywords :
angular measurement; atmospheric electromagnetic wave propagation; atmospheric turbulence; direction-of-arrival estimation; microwave propagation; radar applications; radar theory; radiowave interferometry; 3.5 km; 9523 MHz; SHF; X-band interferometric radar; angle-of-arrival; atmospheric turbulence; geometrical optics; one-way measurements; radar beam; two-way measurements; Atmospheric measurements; Equations; Geometrical optics; Missiles; Optical collimators; Optical transmitters; Physical optics; Radar antennas; Radar measurements; Space technology;
Conference_Titel :
Radar Conference, 2002. Proceedings of the IEEE
Print_ISBN :
0-7803-7357-X
DOI :
10.1109/NRC.2002.999728
