Joint stars embedded data link

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2007-05-22

2007-05-22

Sotomayor, John B. (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Radar transponder system

C342S044000, C342S045000, C342S051000, C342S196000, C342S179000

Reexamination Certificate

active

11109442

ABSTRACT:
A system comprises a radar for producing a radar interrogation signal, a transponder for receiving the radar interrogation signal and producing a transponder signal including a first linear frequency modulated pulse having an increasing frequency and a second linear frequency modulated pulse having a decreasing frequency, and a processor for processing the transponder signal to determine a frequency offset between the radar interrogation signal and the transponder signal.

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“A microwave noncontact identification transponder using subharmonic interrogation”, Pobanz, C.W.; Itoh, T. Microwave Theory and Techniques, IEEE Transactions on vol. 43, Issue 7, Jul. 1995 pp. 1673-1679.

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