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Method and device for compressing a wide band radio-navigation signal, associated method and device for calculating the correlation function of the spreading code of the compressed signal

  • US 9,094,109 B2
  • Filed: 03/13/2014
  • Issued: 07/28/2015
  • Est. Priority Date: 03/15/2013
  • Status: Active Grant
First Claim
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1. A method for compressing a wide band satellite radio-navigation signal in order to transmit it on a narrow band channel, said method comprising:

  • receiving a satellite radio-navigation signal,performing a spectral conversion of said satellite radio-navigation signal into a plurality N of frequency channels of reduced bandwidth,time-shifting each of the channelled signals by a predetermined distinct delay, the delay being configured so as to be greater than a duration of a correlation support of a spreading code of a channelled signal, andaccumulating the shifted channelled signals in order to produce a compressed signal.

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