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

• Published in: 2017 XX IEEE International Conference on Soft Computing and Measurements (SCM) pp. 561 - 563
• Main Authors: Molodyakov, S. A., Ivanov, S. I., Lavrov, A. P., Saenko, I. I.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.05.2017
• Subjects: acoustooptoelectronic processor; Charge coupled devices; Chirp; chirp pulse; Digital signal processing; distributed processing; multi-element photodetector; Photodetectors; Process control; Radio astronomy; radio emission of pulsars; Signal to noise ratio; time delay and integration
• DOI: 10.1109/SCM.2017.7970650

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.