Parameterization of non-linear/non-Gaussian data distributions for efficient information sharing in distributed sensor networks
First Claim
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1. A method for updating a target track, the method comprising:
- receiving a measurement associated with a target track at a first sensor node;
estimating a local posterior density based on the received measurement at the first sensor node;
receiving parameterized data from a second sensor at the first sensor node;
receiving third parameterized data from a third sensor at the first sensor node;
reconstructing a second local posterior density by a processor at the first sensor node based on the received parameterized data;
reconstructing a third local posterior density by the processor at the first sensor node based on the received third parameterized data;
estimating a global posterior density using the estimated local posterior density the reconstructed second local posterior density at the first sensor node, and the reconstructed third local posterior density;
updating the target track using the estimated global posterior density by the processor at the first sensor node.
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Abstract
A method for parameterization of data distributions for efficient information sharing in distributed sensor networks including a plurality of sensors, comprising the steps of performing Bayesian multi-source data fusion and sharing probalistic data information.
11 Citations
17 Claims
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1. A method for updating a target track, the method comprising:
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receiving a measurement associated with a target track at a first sensor node; estimating a local posterior density based on the received measurement at the first sensor node; receiving parameterized data from a second sensor at the first sensor node;
receiving third parameterized data from a third sensor at the first sensor node;reconstructing a second local posterior density by a processor at the first sensor node based on the received parameterized data;
reconstructing a third local posterior density by the processor at the first sensor node based on the received third parameterized data;estimating a global posterior density using the estimated local posterior density the reconstructed second local posterior density at the first sensor node, and the reconstructed third local posterior density; updating the target track using the estimated global posterior density by the processor at the first sensor node. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A node comprising:
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a sensor configured to generate a measurement associated with a target track; a receiver configured to receive parameterized data from a second sensor node and to receive third parameterized data from a third sensor node; and a sensor manager configured to estimate a local posterior density based on the generated measurement; to reconstruct a second local posterior density based on the received parameterized data;
to reconstruct a third local posterior density based on the received third parameterized data;to estimate a global posterior density using the estimated local posterior density the reconstructed second local posterior density; and
the reconstructed third local posterior density; andto update the target track using the estimated global posterior density. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A system comprising:
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a plurality of sensing nodes, wherein each sensing node of the plurality of sensing nodes comprises a sensor configured to generate a measurement associated with a target track; a receiver configured to receive parameterized data from the plurality of sensing nodes; and a sensor manager configured to estimate a local posterior density based on the generated measurement; to reconstruct a plurality of local posterior densities based on the received parameterized data; to estimate a global posterior density using the estimated local posterior density and the reconstructed plurality of local posterior densities; and to update the target track using the estimated global posterior density. - View Dependent Claims (14, 15, 16, 17)
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Specification