DEVELOPMENT AND INVESTIGATION OF OPTICO-DIGITAL PROCESSORS WITH USE OF NOISE-IMMUNE SIGNAL PHOTODETECTORS FOR SPECTRAL ANALYSIS OF SIGNAL IN RADIOASTRONOMY

A structure of optico-digital (OD) processors for radioastronomy has been suggested, and operation algorithms have been devised, which permitted to increase the capacity of the OD processors, the frequency modulation of the OD-radiospectrometer and to extend the analysis band. New methods of pre-processing of signals on the basis of the noise-immune signal (NIS) photodetectors have been proposed; basic algorithms and specialized NIS-photodetector control devices, NIS controllers, have been devised for realizing the modulation modes of the OD processors operation. Based on the developed OD-processor, a wide-band radiospectrometer for a RATAN-600 radiotelescope which was used for a spectral observation of water vapour lines has been createdAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio