摘要: Several tape-recorder interferometer systems have been constructed in the last few years. These are used for connecting existing radio-telescope into interferometers, with baselines ranging from a kilometers to nearly diameter of earth. The NRAO Mark II system is wide use. This, and fact that its properties typical those such general, justifies detailed description system. based on television-type rotating-head video recorder. One-bit sampled data recorded at 4-Mb rate. After recovery, processed special-purpese digital devices general-purpose computers complete For purpose this description, software regarded as an intrinsic part
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