V.F. Korotkov - Dr.Sc. (Eng.), Leading Engineer, LTD «Special Technological Center» (St. Petersburg). E-mail: diofant2912@mail.ru А.V. Klishin - Junior Research Scientist, NIL-5, Military Academy of Signal Communication (St. Petersburg). E-mail: klishin84@gmail.com А.Ju. Petrov - Engineer, LTD «Special Technological Center» (St. Petersburg). E-mail: a.u.petrov.staryoskol@gmail.com

The article contains the algorithm of deinterleaving in signal mixed stream. It has two stages. On the first stage pulse signals in defined frequency band are received and classified according to their parameters - pulse descriptor words (PDW). Period repetition intervals (PRI) probable values are defined and received signals are grouped. As a result we have two sets of clusters based on PDW and PRI. This is a cluster analysis stage. The result of it is two cluster types namely PDW-cluster and PRI-cluster. On the second stage PRI-clusters are analyzed in order to define active radars and their types. PRI-clusters with similar parameters show to the work of defined radar. The number of PRI-clusters make it possible to detect radar mode. This stage is called interpretation. The result of deinterleaving algorithm modeling is in the article. Three mixed pulse streams are used in the modeling. The results show that using this algorithm enables to make pulse deinterleaving with complicated radiation structure in real time with high quality.

 

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