far field


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far field

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Finally, validity of ENP obtained by CFD simulations are confirmed with corresponding acoustic far field data measured by the beam-forming method.
The accuracy of the estimated uncertainty in the far field is dependent on the knowledge of the near-field measurement inaccuracies.
N] in (18) are all defined at near field, but defined at far field in (12), which can be considered as the far-field approximation of (18).
This distance is considerably less than the far field distance of [R.
Our results demonstrate that the loss of an entire antennule interferes with the ability of American lobsters to orient to a far field odor source.
The far field generally is considered to start at two or three times the wavelength, 12 m for 50 MHz.
They are high brightness, single mode lasers with up to 200 mW of kink-free power, and they provide high beam quality with low astigmatism and a Gaussian far field.
What Carr and his research colleagues at Sandia have recognized is that a disproportionate change in the far field behavior can be caused by altering the behavior of the light in the near-field.
Moreover, in order to match the advantages of the direct cylindrical NF-FF transformation [30,31] with those own of the fast helicoidal scan, direct NF-FF transformations with helicoidal scanning, which allow one to evaluate the antenna far field in any cut plane directly from a minimum set of NF data without interpolating them, have been recently proposed in [32, 33].
Several techniques for determining the far field from the radiating near field have been developed.