Acousto-optic spectrum analyzer with high information productivity

Acousto-optic spectrum analyzers (AOSA) perform the signal spectrum processing with the rate defined by such physical characteristics as frequency bandwidth and Bragg cell temporal aperture. AOSA with space and time integration have approximately similar information productivity but the 1(st) allows to process wider spectrum area whereas the 2(nd) provides higher frequency resolving power. The mechanical combination of both does not cause the productivity gain if not to take into consideration the processed signal character. We have proposed to use the combination of AOSA with space and time integration to process the signal with some features known beforehand. The device which consists of both kinds of AOSA and processes such kind of signal, has information productivity about by an order bigger than that of the device based on the single AOSA. The principles of the device design, features of used Bragg cells, and radio air signal processing data are presented and discussed.