Perfect periodic correlation sequences

نویسندگان

  • Avraham Freedman
  • Nadav Levanon
  • Shimshon Gabbay
چکیده

Sequences with the property of perfect periodic autocorrelation are used in various fields such as communication and radar systems. Various methods were introduced to construct such sequences. Most of these methods concentrated on binary or N-phase sequences. In this paper two methods to construct general phase sequences are introduced. The methods are based upon the properties of the Fourier transform of perfect periodic autocorrelation sequences. The sensitivity of these codes to errors is also elaborated. Zusammenfassung Folgen mit der Eigenschaft einer vollkommen periodischen Autokorrelation verwendet man in verschiedenen Gebieten wie bei Kommunikationsund Radarsystemen. Verschiedene Verfahren zur Konstruktion solcher Folgen wurden eingefiihrt. Die meisten solchen Techniken beziehen sich auf bin&e oder N-Phasen-Sequenzen. In diesem Beitrag werden zwei Methoden zur Konstruktion von Sequenzen allgemeiner Phasen eingefiihrt. Die Grundlage der Verfahren bilden die Eigenschaften der Fouriertransformierten von Folgen mit perfekt periodischer Autokorrelation. Auch die Fehlerempfindlichkeit so entworfener Codes wird herausgearbeitet. On fait usage de skquences d’autocorrblation pkriodiques parfaites dans divers domaines tels que les tClCcommunications et le radar. II existe plusieurs mCthodes de formation de skquences de ce genre, mais le plupart sont limittes ?I des stquences binaires ou N-phases. Cet article introduit deux methodes de g&&ation qui conviennent a la formation de sCquences de phases g&n&ales. Les mCthodes sont basks sur les caract&istiques de la transformation de Fourier des stquences d’autocorrilation parfaites. On traite aussi la sensibilitt: de la fonction d’autocorr6lation aux erreurs de phase.

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عنوان ژورنال:
  • Signal Processing

دوره 41  شماره 

صفحات  -

تاریخ انتشار 1995