The FFX Correlator

The FFX Correlator

We established a new algorithm for correlation process in radio astronomy. This scheme consists of the 1st-stage Fourier Transform as a filter and the 2nd-stage Fourier Transform for spectroscopy. The ”FFX” correlator stands for Filter and FX architecture, since the 1st-stage Fourier Transform is performed as a digital filter, and the 2nd-stage Fourier Transform is performed as a conventional F...

VAES3 scheme for FFX

VAES stands for variable AES. VAES3 is the third generation format-preserving encryption algorithm that was developed in a report [4] simultaneously with the comprehensive paper on FPE [1] and subsequently updated slightly to be in concert with the FFX standard proposal. The standard proposal of FFX includes, in an appendix, example instantiations called A2 and A10. A follow on addendum [3] inc...

NEXT ION OPTICS SIMULATION VIA ffx

Simulations of the erosion processes for two proposed sets of ion thruster grids for the NEXT project are presented. Structural failure and electron backstreaming due to accel grid erosion are discussed as two possible failure mechanisms of these grid sets. The TAG grid set is shown to outperform the NSTAR grid set both in terms of margin against electron backstreaming and accel grid mass loss ...

The Vector Current Correlator

The Murchison Widefield Array Correlator

The Murchison Widefield Array (MWA) is a Square Kilometre Array (SKA) Precursor. The telescope is located at the Murchison Radio–astronomy Observatory (MRO) in Western Australia (WA). The MWA consists of 4096 dipoles arranged into 128 dual polarisation aperture arrays forming a connected element interferometer that cross-correlates signals from all 256 inputs. A hybrid approach to the correlati...