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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}{Modern Radio astronomy receiver }{1}\Xsecc{1.1.1}{Observation types }{1}\Xpage{2}\Xsec{1.2}{Requirements }{2}\Xsecc{1.2.1}{Sensitivity and noise number }{2}\Xsecc{1.2.2}{Dynamic range }{2}\Xsecc{1.2.3}{Bandwidth }{2}\Xsec{1.3}{Current radioastronomy problems }{2}\Xpage{3}\Xchap{2}{Testing construction }{3}\Xsec{2.1}{Required parameters }{3}\Xsec{2.2}{Sampling frequency }{3}\Xsec{2.3}{System scalability }{3}\Xpage{4}\Xsecc{2.3.1}{Differential signalling }{4}\Xsecc{2.3.2}{Phase matching }{4}\Xpage{5}\Xsec{2.4}{System description }{5}\Xsecc{2.4.1}{Frequency synthesis }{5}\Xfnote\Xsecc{2.4.2}{Signal connectors }{5}\Xpage{6}\Xsecc{2.4.3}{Design of ADC modules }{6}\Xpage{7}\Xsecc{2.4.4}{ADC selection }{7}\Xpage{8}\Xsecc{2.4.5}{ADC modules interface }{8}\Xpage{9}\Xsecc{2.4.6}{Output data format }{9}\Xsec{2.5}{Achieved parameters }{9}\Xsecc{2.5.1}{Data reading and recording }{9}\Xsecc{2.5.2}{ADC module parameters }{9}\Xpage{10}\Xpage{11}\Xpage{12}\Xpage{13}\Xchap{3}{Proposed final system }{13}\Xsec{3.1}{Custom design of FPGA board }{13}\Xsec{3.2}{Parralella board computer }{13}\Xsec{3.3}{GPU based computational system }{13}\Xpage{14}\Xchap{4}{Conclusion }{14}\Xsec{4.1}{Possible future improvements }{14}\Xpage{15}\Xchap{A}{Circuit diagram of ADCdual01A module }{15}\Xpage{16}\Xchap{B}{Circuit diagram of FMC2DIFF module }{16}