Distributed processing in acoustooptoelectronic processor for detection and measurement of pulsars radio emission

Abstract

Studies of cosmic sources - pulsars require solving complex problems from detection of pulsed radio emission to determination these pulses main parameters. The authors solve these problems by use of hybrid processor with distributed processing: broadband spectral analysis of radiation is performed in analog form in a coherent acousto-optic Fourier processor (conveyor-sliding integral transform), the output of which is additionally compressed in the multi-element photodetector operating in time delay and integration mode (a photodetector is a discrete-analog processor here), a further increase the signal/noise ratio is produced by accumulation of photodetector output data in a digital microprocessor, which also executes control of hybrid processor as a whole. The report shows the results of numerical simulation of the arrangement in MATLAB. Discussed are also the possibilities of using of two-channel acousto-optical interferometric processor to obtain estimates of the parameters of polarized pulsars radio emission.