Communications: directive radio wave systems and devices (e.g. – Clutter elimination – Mti
Reexamination Certificate
2007-06-26
2007-06-26
Tarcza, Thomas H. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Clutter elimination
Mti
C342S159000, C342S082000
Reexamination Certificate
active
11143045
ABSTRACT:
A radar system transmits an environment-sensing pulse and processing circuitry time-reverses an order of radar return samples and generates a convolution matrix from the radar return samples resulting from a transmission of the environment-sensing pulse. The processing circuitry may also generate a plurality of return energy-ranked vectors from a decomposition of the convolution matrix. The processing circuitry may select one of the return energy-ranked vectors for generation of a clutter-orthogonal transmit waveform. In some embodiments, the processing circuitry may select a clutter-orthogonal vector from the plurality of return energy-ranked vectors and may quantize the clutter-orthogonal vector for application to the phase modulator for generation of the clutter-orthogonal transmit waveform. The radar system may perform multiple correlations on sampled radar returns from the clutter orthogonal transmit waveform using a family of pseudo-orthogonal waveforms to detect a slow-moving target.
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Adams Robert J.
Adams Vinh
Dwelly Wesley
Chen Shelley
Gorrie Gregory J.
Raytheon Company
Schwegman Lundberg Woessner & Kluth P.A.
Tarcza Thomas H.
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