Telescope Beam Profiles Calculation

Appendix A Telescope Beam Profiles Calculation Rearranging Eq. A.8 one obtains the beam profile as... 

An alternative to calculating the telescope beam profile is to use the Hankel transform, valid for an ideal and circularly symmetric aperture. The calculation of beam profiles using Hankel transforms is detailed in Appendix A. 

The beam profile is a function of the wavelength and the required angular resolution ABmax, which defines the spatial span for the calculation of the illumination profile in (x, y). The telescope illumination can be written as... 

As an example, Fig. 4.5 shows the calculated normalised beam profile (right) for a given wavenumber and for a telescope diameter Dja = 3 m illuminated uniformly (left). 

Fig. 4.5 Calculated beam for a given telescope diameter, DtcU Telescope illumination top-left) and its profile bottom-left) and normalised beam profile top-right) and its corresponding profile (bottom-right)...

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