METHOD OF RECEPTION OF MULTIRAY SIGNALS AND DEVICE FOR ITS REALIZATION

FIELD: radio engineering, digital radio communication systems. SUBSTANCE: search for rays is conducted over interval of multiray property, search for clusters of rays presenting integrated groups of detected rays for which delay interval between any two rays adjoining by delay is less or equal to in...

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Bibliographische Detailangaben
Hauptverfasser: GARMONOV A.V, TABATSKIJ V.D
Format: Patent
Sprache:eng
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Zusammenfassung:FIELD: radio engineering, digital radio communication systems. SUBSTANCE: search for rays is conducted over interval of multiray property, search for clusters of rays presenting integrated groups of detected rays for which delay interval between any two rays adjoining by delay is less or equal to interval of search for delay is performed. Ray of maximum power is found in each cluster and is determined as principal ray of cluster and all other rays are determined as additional rays of cluster. Temporary adjustment of reference signals of rays not included in cluster and of principal rays of clusters is carried out so that maximum level of cross correlation between reference signals of rays and received signal is obtained. Temporary adjustments of reference signals of additional rays is realized so that difference of delays between signals of additional rays and reference signals of principal rays corresponding to them is maintained. Device proposed for realization of method includes L data receivers and multiplication circuits corresponding to them, circuit determining weight coefficients, adder, solving circuit, M receivers of clusters of rays and multiplication circuits corresponding to them, circuit for detection and analysis of rays, search receiver, commutator and control unit. EFFECT: improved quality of reception in cities since energy of clusters of rays is maximally extracted during reception of multiray signals. 3 cl, 15 dwgd