A spectrometer with 16 input channels (8 dual polarization), based on the ALMA Tunable Filter Board. ... A. Russo, G. Comoretto: Spettrometri a correlazione e a FFT per il radiotelescopio SRT , Arcetri technical report 1/2005 . G. Comoretto, A. D'Ambrosi, R. Nesti, A. Russo, F. Palagi: A modular multichannel spectrometer - design study Arcetri technical report 4/2006 . ... G. Comoretto, G. Tuccari: Reference design for the Digital BBC Architecture Arcetri technical report 2/2008 ...

Description and Specifications (html) ( pdf ) . System Block Diagram (pdf) . ... GALFA Spectrometer Setup, Operations, Basics Manual (pdf) . GALFA Diagnostic Software Overview . ... Polyphase Filter Bank . ... Design of Quadrature Downconverter Board (pdf) . Design of Low-Pass Filters (pdf) . Design of 16-Channel DAC/Gain Control Board (pdf) . ... Design of Digital Decimating FIR Filter (pdf) . ... Quadrature downconverter (August 9, 2004) . Spectrometer board (September 1, 2004) . ...

Flexible frame grabbing to PC over PCI bus from area & line scan cameras . ... Analog input up to 20 MHz and digital input up to 32 Mbytes/Sec. ... The LPG-132 will easily interface to virtually any analog or digital camera and provides lightning fast PCI transfers at an amazingly attractive price. The LPG-132 will interface with any camera or sensor at data rates up to 32 Mbytes/Sec. ... The LPG-132 comes in two configurations - one for analog input and the other for digital inputs. ...

Dick Ferris [0] Receiver architecture, correlator architecture, digitisation, beamforming, interference mitigation, data transport, cost and complexity are inexorably intertwined. A combination of baseband receiver, digital filterbank correlator and mixed delay and phase digital beamformers, provides a flexible and efficient solution. ... Data Growth & Compression In a 4k channel filterbank the word size necessarily grows by 6 bits in order to maintain the input dynamic range. ...

... The Digitized Sky Survey is now available on CD-ROMs and will be on the ST ScI archive. ... ST ScI has digitized Schmidt plates of the entire Sky. ... The software then accesses the data, decompresses the scans and returns the data in a form of a photographic intensity as a function of x and y plate pixel coordinates. ... accesses the Digitized Sky Survey (DSS) CD ROMs and decompressed the data returning a photographic intensity as a function of x and y pixel coordinates. ...

... Building subroutine libraries . ... This was particularly useful for providing global variables through COMMON blocks. ... Therefore there is a distintion between private COMMON (seen only by the subroutine library) and global COMMON, but this is a semantic distinction only. ... The distinction between private and global variables remains, but, in principle, there is a more legitiamte way to export "global" varaibles from a subroutine library than simply making the INCLUDE file globally visible. ...

WFC3 Instrument Handbook for Cycle 24 . ... Wide Field Camera 3 Instrument Handbook for Cycle 24 > Glossary . ... aXe : Spectroscopic Data Extraction Software . ... CSM : Channel select mechanism . ... GSFC : NASA?s Goddard Space Flight Center . Help Desk: Facility for getting help on HST related topics via email. help@stsci.edu. ... HST : Hubble Space Telescope . ... STSDAS : Space Telescope Science Data Analysis System. ... WFC : Wide-Field Channel of ACS . WFC3 : Wide Field Camera 3 . ...

... Our Java and Python software runs anywhere on Windows, Mac, and Linux . ... Alsvid - Algorithms for visualization and processing of image data with Python . Our observatory software . PyDome - Astronomical dome control in Python . ... Software archive . ... XEphem for visual access to