... Astrophysics Group . ... Optical Interferometry . BSMEM Software . ... OIFITS: A Data Exchange Standard for Optical (Visible/IR) Interferometry . ... The Cambridge software package for image reconstruction from optical interferometry data has been dubbed BSMEM, to stand for BiSpectrum Maximum Entropy Method. It was first written in Fortran and completed by David Buscher in 1992 to demonstrate direct maximum entropy reconstruction from optical aperture synthesis data (Buscher 1994). ...

... The design employs a differential structure. ... The input is adapted to 100 differential, and the outputs use standard Low Voltage Differential Signaling (LVDS). ... T/H SINGLE T/H Single Input T/H Single Output 1.35 0.15 0.2 T/H DIFFERENTIAL Input T/H Output T/H 0.1 1.3 0.05 volts volts Figure 5: Digital part and digital gate 0 1.25 -0.05 -0.1 1.2 Integrated Test System A test system is integrated on chip to evaluate the transmission to the data acquisition card (fig: 7). ...