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Receiver and method for providing a phase coherency for frequency hopping multitone signals

Empfänger und Verfahren zur Bereitstellung einer Phasenkohärenz für Frequenzsprungmehrtonsignale
 
: Faßbinder, Marc; Hadaschik, Niels; Thielecke, Jörn

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Frontpage ()

EP 3316508 A1: 20161027
English
Patent, Electronic Publication
Fraunhofer IIS ()

Abstract
The invention concerns a method and a receiver configured to receive a radio signal carrying information, the radio signal comprising an overall frequency band (f 1 to f 6 ) having at least three different sub carriers (f 1 , f 2 , f 3 ). The receiver is further configured to receive, during a first time period (T hop1 ), a first multitone signal (101) carrying a first portion of the radio signal, said first multitone signal comprising a first and a second sub carrier (110 1 , 110 2 ) which are received simultaneously, and to determine a first phase difference (¦ 21 = ¦ 2 - ¦ 1 ) between the first and the second sub carrier (110 1 , 110 2 ). The receiver is further configured to receive, during a second time period (T hop2 ), a second multitone signal (102) carrying a second portion of the radio signal, said second multitone signal (102) comprising the second and a third sub carrier (110 2 , 110 3 ) which are received simultaneously, and to determine a second phase difference (¦ 32 = ¦ 3 - ¦ 2 ) between the second and the third sub carrier (110 2 , 1103). According to the invention, the receiver is configured to determine a phase difference between the first and the third sub carrier (110 1 , 110 3 ) using the first phase difference (¦ 21 = ¦ 2 - ¦ 1 ) and the second phase difference (¦ 32 = ¦ 3 - ¦ 2 ).

: http://publica.fraunhofer.de/documents/N-530780.html