Remote sensing using MIMO systems
| DWPI Title: Sensing method of moving object within physical environment involves identifying moving object within physical environment based on signature generated for moving object based on spatial information variable values accumulated over time |
| Abstract: A technique for sensing a moving object within a physical environment using a MIMO communication link includes generating a channel matrix based upon channel state information of the MIMO communication link. The physical environment operates as a communication medium through which communication signals of the MIMO communication link propagate between a transmitter and a receiver. A spatial information variable is generated for the MIMO communication link based on the channel matrix. The spatial information variable includes spatial information about the moving object within the physical environment. A signature for the moving object is generated based on values of the spatial information variable accumulated over time. The moving object is identified based upon the signature. |
| Use: Sensing method of moving object within physical environment. |
| Advantage: Optimizes data throughput of the MIMO communication link by preprocessing the transmitted signal and post processing the received signal. Allows simultaneous remote sensing of moving objects within the physical environment. |
| Novelty: The sensing method involves generating spatial information variable by factorizing channel matrix to obtain singular values. The spatial information variable includes channel capacity variable calculated based on singular values as the measure of available channel throughput of multiple input multiple output (MIMO) communication link between transmitter (115) and receiver (120) for given transmit power level. The moving object is identified within physical environment (110) based on signature generated for moving object based on spatial information variable values accumulated over time. |
| Filed: 4/24/2012 |
| Application Number: US13454802A |
| Tech ID: SD 11850.0 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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