Communications: directive radio wave systems and devices (e.g. – Base band system
Reexamination Certificate
2008-03-26
2010-06-22
Tarcza, Thomas H (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Base band system
C342S118000, C342S204000
Reexamination Certificate
active
07741989
ABSTRACT:
Disclosed is a radar system capable of detecting near targets even in case of using discrete bands transmission signal. For this end, a discrete bands selection unit1selects discrete bands that meet the required radar parameters for detecting target information. A discrete bands synthetic waveform generation unit2suitably synthesizes center frequency signals of the respective discrete bands on the time base so that the signals for all of the discrete bands are transmitted within the transmission time of a particular discrete band that requires the longest time among the signals for the selected discrete bands selected. Alternatively, the center frequency signal is generated for the particular band requiring the longest transmission time, while signals sweeping from lower limit frequencies to upper limit frequencies are generated during the transmission time for the discrete bands other than the particular discrete band requiring the longest transmission time. Subsequently, the signals for the respective discrete bands are synthesized on the time base to generate discrete bands synthetic waveforms so that a discrete bands waveform storage unit3stores them in a transmission signal buffer.
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Brainard Timothy A
NEC Corporation
Tarcza Thomas H
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