Communications: directive radio wave systems and devices (e.g. – Radar ew
Patent
1985-10-23
1988-01-26
Tubbesing, T. H.
Communications: directive radio wave systems and devices (e.g.,
Radar ew
328119, 377 54, 364517, G01S 744, H03K 526
Patent
active
047219580
ABSTRACT:
Apparatus, which first de-interleaves a signal, that comprises a plurality of interleaved pulse trains, into its constituent pulse trains and then identifies the emitter which transmitted each pulse train, is described herein. Specifically, this apparatus comprises a folded shift register which performs the de-interleaving. The folded shift register comprises a plurality of serially connected identical "active" cells, each of which detects a pulse occurring at a particular group pulse repetition interval (PRI) and, in an embodiment described herein, ascertains the inter-pulse PRI for each detected pulse for use in identifying an emitter. One or more processors analyze the group and inter-pulse PRI data, provided by the folded shift register, in order to identify each emitter.
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Barron Jr. Gilberto
Michaelson Peter J.
Stern Robert J.
TRW Inc.
Tubbesing T. H.
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