NO912034L - PROCEDURE FOR USING A CORRELATION TECHNIQUE AA DETERMINE THE TIME FOR RECEIVING A SIGNAL. - Google Patents

PROCEDURE FOR USING A CORRELATION TECHNIQUE AA DETERMINE THE TIME FOR RECEIVING A SIGNAL.

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Publication number
NO912034L
NO912034L NO91912034A NO912034A NO912034L NO 912034 L NO912034 L NO 912034L NO 91912034 A NO91912034 A NO 91912034A NO 912034 A NO912034 A NO 912034A NO 912034 L NO912034 L NO 912034L
Authority
NO
Norway
Prior art keywords
correlation
time
code
signal
receiving
Prior art date
Application number
NO91912034A
Other languages
Norwegian (no)
Other versions
NO912034D0 (en
Inventor
Per Edgar Pedersen
Original Assignee
Storno As
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB888827732A external-priority patent/GB8827732D0/en
Priority claimed from GB888827734A external-priority patent/GB8827734D0/en
Priority claimed from PCT/DK1989/000280 external-priority patent/WO1990006642A1/en
Application filed by Storno As filed Critical Storno As
Publication of NO912034D0 publication Critical patent/NO912034D0/en
Publication of NO912034L publication Critical patent/NO912034L/en

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  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

Fremgangsmåte for å bestemme tidspunktet et signal som inneholder en forhåndsbestemt kode, for eksempel en Barker-kode, mottas. Koden kan være til stede ved starten av et telegram som skal mottas av en mobil radiostasjon fra en basestasjon. Signalet korreleres med en korresponderende kode lagret i et minne. Korrelasjonen utfares ved ulike tidspunkt. Dette gir en korrelasjonskurve. Spissen representerer peak-korrelasjon. Tids- punktet for optimal korrelasjon bestemmes ved å ekstrapolere sidene til spisse. Oppfinnelsen tilveiebringer også en nullkryssings-detektor for å ta tiden ved nullkryssings-hendelser, hvorved det er mulig å ta tiden ved mottak av koden til- strekkelig nøyaktig til å muliggjøre meningsfull korrelasjon.A method for determining when a signal containing a predetermined code, such as a Barker code, is received. The code may be present at the start of a telegram to be received by a mobile radio station from a base station. The signal is correlated with a corresponding code stored in a memory. The correlation is performed at different times. This gives a correlation curve. The tip represents peak correlation. The time for optimal correlation is determined by extrapolating the sides to the tip. The invention also provides a zero-crossing detector for taking time at zero-crossing events, whereby it is possible to take the time at receiving the code sufficiently accurate to allow meaningful correlation.

NO91912034A 1988-11-28 1991-05-27 PROCEDURE FOR USING A CORRELATION TECHNIQUE AA DETERMINE THE TIME FOR RECEIVING A SIGNAL. NO912034L (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB888827732A GB8827732D0 (en) 1988-11-28 1988-11-28 Method of determination of signal reception time by means of correlation technique
GB888827734A GB8827734D0 (en) 1988-11-28 1988-11-28 Zero crossing detector
PCT/DK1989/000280 WO1990006642A1 (en) 1988-11-28 1989-11-24 Method of determination of signal reception time by means of correlation technique

Publications (2)

Publication Number Publication Date
NO912034D0 NO912034D0 (en) 1991-05-27
NO912034L true NO912034L (en) 1991-07-26

Family

ID=27222221

Family Applications (1)

Application Number Title Priority Date Filing Date
NO91912034A NO912034L (en) 1988-11-28 1991-05-27 PROCEDURE FOR USING A CORRELATION TECHNIQUE AA DETERMINE THE TIME FOR RECEIVING A SIGNAL.

Country Status (2)

Country Link
FI (1) FI912533A0 (en)
NO (1) NO912034L (en)

Also Published As

Publication number Publication date
FI912533A0 (en) 1991-05-27
NO912034D0 (en) 1991-05-27

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