Communications: directive radio wave systems and devices (e.g. – Determining velocity – Other than doppler
Reexamination Certificate
2009-02-23
2011-12-20
Gregory, Bernarr (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Determining velocity
Other than doppler
C342S104000, C342S145000, C342S175000, C342S195000, C342S196000, C342S202000, C342S204000, C375S130000, C370S203000, C370S208000
Reexamination Certificate
active
08081105
ABSTRACT:
An embodiment of the invention includes a step of transmitting an OFDM waveform including several frequency carrier signals transmitted simultaneously, the frequency carrier signals being coded in order to improve the Doppler response. An embodiment of the invention includes a step of receiving the echoed waveform from the target. The initial phase of each frequency carrier signal is recovered from the echoed waveform. The recovered initial phase of each frequency carrier signal is cyclically shifted in order to compensate for the Doppler effect and subsequently decoded. A compressed pulse is synthesized from the decoded initial phases.
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De Heij Wilhelmus Johannes
Tigrek Recep Firat
Gregory Bernarr
Stroock & Stroock & Lavan LLP
Thales Nederland B.V.
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