Remote probing using spatially filtered apertures
JOSA, Vol. 64, Issue 10, pp. 1295-1303 (1974)
http://dx.doi.org/10.1364/JOSA.64.001295
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Abstract
The use of spatial filters, or weighting functions, on transmitting and receiving apertures used on line-of-sight propagation paths is a powerful technique for probing the velocity and refractivity structure of the transmission medium. Provided that the weak-scattering approximation is appropriate, simple and inexpensive techniques offer on the order of 100 resolution elements along the path, with little or no data processing required. A simple optical experiment has been conducted over a 61 m path, with a resolution-cell size of about 0.7 m long, 0.1 m3. volume, with results that compare well with anemometer measurements.
Citation
R. W. Lee, "Remote probing using spatially filtered apertures," J. Opt. Soc. Am. 64, 1295-1303 (1974)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-64-10-1295
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