In this scheme, multiple active correlators for demodulation are replaced with a matched filter-based cross-correlator
A radiation tolerant ASIC-based cross-correlator
needs to be developed.
SAIR systems consist of an antenna/receiver array and a cross-correlator
engine and internal low-noise reference sources.
The APPH6000RM-IS features a cross-correlator
engine and internal low noise reference sources to enable fast and accurate “one-click” measurements.
A white light cross-correlator
produces accurate measurement of the change in the cavity length, over a wide range of temperatures and for long periods.
When the specific n-bit sequence is received, the SAW cross-correlator
detection threshold will be met and the time recorded.
There are 2532 cross-correlators
(4 correlators per baseline) in the unit.