Receiver hardware reduction for spatially independent...

Details Receiver hardware reduction for spatially independent... Receiver hardware reduction for spatially independent...

2005-12-30

2010-12-28

Odom, Curtis B (Department: 2611)

Pulse or digital communications

Systems using alternating or pulsating current

Plural channels for transmission of a single pulse train

C375S260000, C375S296000, C375S299000, C375S347000

Reexamination Certificate

active

07860182

ABSTRACT:
A communications device includes an antenna array comprising antenna elements for receiving at least N spatially independent signals, and a receiver coupled to the antenna array. The receiver includes an analog receiver circuit for receiving the N spatially independent signals, and has a bandwidth of at least N times an information bandwidth of the spatially independent signals. The receiver further includes a digital receiver circuit coupled to the analog receiver circuit, and samples the N spatially independent signals at a rate of at least N times a Nyquist rate which would have been required if a single antenna element had been used to receive the signals. A processor is coupled to the digital receiver circuit for demultiplexing the sampled N spatially independent signals.

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Fredrick et al., A Smart Antenna Receiver Array Using a Single RF Channel and Digital Beamforming, IEEE Transactions on Microwave Theory and Techniques, vol. 50, No. 12, Dec. 2002, pp. 3052-3058.

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