METHOD OF DETECTING SIGNALS
FIELD: underwater acoustics. ^ SUBSTANCE: method allows detecting sonar signals inside real channel of propagation when distortion of signal is taken into account which distortions appear at reflection and dissipation of waves at boundaries of channel as well as phenomena of signal total internal re...
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creator | MALYJ V.V SOTNICHUK S.V BUTYRSKIJ E.JU SAPRYKIN V.A |
description | FIELD: underwater acoustics. ^ SUBSTANCE: method allows detecting sonar signals inside real channel of propagation when distortion of signal is taken into account which distortions appear at reflection and dissipation of waves at boundaries of channel as well as phenomena of signal total internal reflection. Method of detection of bandwidth signals consists of operations of mutual-correlation comparison of accepted realization with copy of irradiated signal and making decision on detection. Accepted realization of mutual-correlated signal is compared with Gilbert-image of copy of irradiated signal; results of mutual-correlation comparison of accepted realization with reference and Gilbert-image of reference of irradiated signal are squared and summed. Calculated value is compared with threshold one. ^ EFFECT: increased noise immunity; extended radar range. ^ 1 dwg |
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Method of detection of bandwidth signals consists of operations of mutual-correlation comparison of accepted realization with copy of irradiated signal and making decision on detection. Accepted realization of mutual-correlated signal is compared with Gilbert-image of copy of irradiated signal; results of mutual-correlation comparison of accepted realization with reference and Gilbert-image of reference of irradiated signal are squared and summed. 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Method of detection of bandwidth signals consists of operations of mutual-correlation comparison of accepted realization with copy of irradiated signal and making decision on detection. Accepted realization of mutual-correlated signal is compared with Gilbert-image of copy of irradiated signal; results of mutual-correlation comparison of accepted realization with reference and Gilbert-image of reference of irradiated signal are squared and summed. 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subjects | ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING |
title | METHOD OF DETECTING SIGNALS |
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