Communications: directive radio wave systems and devices (e.g. – Radar for meteorological use
Reexamination Certificate
2011-04-19
2011-04-19
Sotomayor, John B (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Radar for meteorological use
C342S02600R, C342S179000, C342S188000
Reexamination Certificate
active
07928894
ABSTRACT:
A polarimetric radar with V and H polarized array antenna elements which transmit a V component modulated by a V code and the H component modulated by an H code orthogonal thereto. Unwanted polarization errors occur at off-boresight angles, which tend to obscure the polarization characteristics of the target. Radar returns are processed to form four independent channels by convolving the signals received by the V and H antennas with the mutually orthogonal V and H codes. This overcomes the polarization obscuration and allows determination of the polarimetric ratio of the target with high accuracy.
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Duane Morris LLP
Lockheed Martin Corporation
Sotomayor John B
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