Fast Fourier Transform Telescope

Fast Fourier Transform Telescope is Tegmark and Zaldarriaga's name for a design for an all-digital synthetic-aperture telescope.wikipedia
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Astronomical interferometer

astronomical interferometryinterferometerinterferometry
He noted that by using an array of small instruments it would be possible to measure the diameter of a star with the same precision as a single telescope which was as large as the whole array — a technique which later became known as astronomical interferometry.
Max Tegmark and Matias Zaldarriaga have proposed the Fast Fourier Transform Telescope which would rely on extensive computer power rather than standard lenses and mirrors.

List of telescope types

ground-based telescopestationary telescopetypes
* Fast Fourier Transform Telescope

Max Tegmark

TegmarkMax Erik Tegmark
Fast Fourier Transform Telescope is Tegmark and Zaldarriaga's name for a design for an all-digital synthetic-aperture telescope.

Matias Zaldarriaga

Zaldarriaga
Fast Fourier Transform Telescope is Tegmark and Zaldarriaga's name for a design for an all-digital synthetic-aperture telescope.

Digital data

digitaldigital informationdigitally
Fast Fourier Transform Telescope is Tegmark and Zaldarriaga's name for a design for an all-digital synthetic-aperture telescope.

Aperture synthesis

synthetic apertureaperture synthesis imaginginterferometric imaging
Fast Fourier Transform Telescope is Tegmark and Zaldarriaga's name for a design for an all-digital synthetic-aperture telescope.

Telescope

telescopestelescopicspyglass
Fast Fourier Transform Telescope is Tegmark and Zaldarriaga's name for a design for an all-digital synthetic-aperture telescope. In 1868, Hippolyte Fizeau realized that the lenses and mirrors in a telescope perform a physical approximation of a Fourier transform.

Interferometry

interferometerinterferometricoptical interferometry
It is a type of interferometer designed to be cheaper than standard telescope interferometers currently in use.

Hippolyte Fizeau

FizeauArmand FizeauArmand Hippolyte Louis Fizeau
In 1868, Hippolyte Fizeau realized that the lenses and mirrors in a telescope perform a physical approximation of a Fourier transform.

Fourier transform

continuous Fourier transformFourierFourier transforms
In 1868, Hippolyte Fizeau realized that the lenses and mirrors in a telescope perform a physical approximation of a Fourier transform.

Radio telescope

radio telescopesradiotelescoperadio-telescope
Building radio telescopes this way should become feasible within a few years if Moore's law continues to hold.

Moore's law

Moore’s Lawcomputational powermass-produced
Building radio telescopes this way should become feasible within a few years if Moore's law continues to hold.

Optical telescope

telescopetelescopesoptical
Eventually optical telescopes could also be built this way.

Radar

radar stationradarsradar system
This technique is already being used in radar applications.

Crab Nebula

Crab1952Crab Pulsar
This paper refers to an earlier telescope design from 1993 which took direct images of the Crab nebula at radio wavelengths using an eight-by-eight-pixel two-dimensional spatial FFT processor.

Pixel

megapixelpxMP
This paper refers to an earlier telescope design from 1993 which took direct images of the Crab nebula at radio wavelengths using an eight-by-eight-pixel two-dimensional spatial FFT processor.

History of the telescope

History of telescopestelescopeInvention of the telescope
In 2008, Max Tegmark and Matias Zaldarriaga proposed a "Fast Fourier Transform Telescope" design in which the lenses and mirrors could be dispensed with altogether when computers become fast enough to perform all the necessary transforms.