Angular aperture

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Related to Angular aperture: aperture angle
See Aperture, Distance.

See also: Angular

References in periodicals archive ?
The frequency range for the proposed model is f = 8 ~ 12 GHz with 401 frequency steps, the angular aperture is [theta] = 0[degrees] to 360[degrees] with 1 degree angular step.
This paper illustrates the efficiency of the proposed beamforming and post-processing algorithms in terms of angular aperture and target detection.
where [lambda] is the wavelength of light, n is the refractive index of the medium and [alpha] is half the angular aperture of the lens.
In a divergent beam diffractometer these include the angular aperture of the divergence slit, the width and axial length of the receiving slit, the angular apertures of the axial Soller slits, the length and projected width of the x-ray source, the absorption coefficient and axial length of the sample.