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%% OPmac - REF file\Xpage{-1}\Xpage{-2}\Xpage{-3}\Xpage{-4}\Xpage{-5}\Xpage{-6}\Xpage{1}\Xchap{1}{Introduction }{1}\Xsec{1.1}{Typical Radio astronomy receiver }{1}\Xsec{1.2}{Requirements }{1}\Xsecc{1.2.1}{Sensitivity }{1}\Xsecc{1.2.2}{Dynamic range }{1}\Xsecc{1.2.3}{Bandwidth }{1}\Xsec{1.3}{Current radioastronomy problems }{1}\Xpage{2}\Xchap{2}{Testing construction }{2}\Xsec{2.1}{Required parameters }{2}\Xsec{2.2}{Sampling frequency }{2}\Xsec{2.3}{System scalability }{2}\Xpage{3}\Xsecc{2.3.1}{Differential signalling }{3}\Xsecc{2.3.2}{Phase matching }{3}\Xpage{4}\Xsec{2.4}{System description }{4}\Xsecc{2.4.1}{Frequency synthesis }{4}\Xfnote\Xsecc{2.4.2}{Signal connectors }{4}\Xpage{5}\Xsecc{2.4.3}{Design of ADC modules }{5}\Xsecc{2.4.4}{ADC selection }{5}\Xpage{6}\Xsecc{2.4.5}{ADC modules interface }{6}\Xpage{7}\Xsecc{2.4.6}{Output data format }{7}\Xsec{2.5}{Achieved parameters }{7}\Xpage{8}\Xsecc{2.5.1}{Data reading and recording }{8}\Xpage{9}\Xsecc{2.5.2}{ADC module parameters }{9}\Xpage{10}\Xpage{11}\Xchap{3}{Proposed final system }{11}\Xsec{3.1}{Custom design of FPGA board }{11}\Xsec{3.2}{Parralella board computer }{11}\Xsec{3.3}{GPU based computational system }{11}\Xpage{12}\Xchap{4}{Conclusion }{12}\Xsec{4.1}{Possible future improvements }{12}\Xpage{13}\Xchap{A}{Circuit diagram of ADCdual01A module }{13}\Xpage{14}\Xchap{B}{Circuit diagram of FMC2DIFF module }{14}