Method of spectrum mapping and exploitation using distributed sensors
First Claim
1. A distributed multi-sensor system for spectrum mapping and signal exploitation, comprising:
- a plurality of distributed sensors comprising a first set of sensors distributed in a first region and said first set of sensors configured to receive a plurality of non-cooperative non coherent and asynchronous signals, s(t), from an unknown transmission source of interest (SOI), each of said sensors of said first set having a sampling clock and a local memory, and providing a first set of receive signals, and said plurality of distributed sensors further comprising a second set of sensors including a cluster of sensors distributed in a second region and said second set of sensors configured to receive the plurality of non-cooperative non coherent and asynchronous signals, s(t), from the unknown transmission source (SOI), each of said cluster of sensors of said second set having a sampling clock and a local memory, and providing a plurality of received signals;
said plurality of distributed sensors being configured to collect timestamped data snapshots of the SOI;
a first fusion center disposed in said first region and being configured to receive timestamped signals from said first set of sensors;
a second fusion center disposed outside of said first region of distributed sensors and said second region of distributed sensors and being configured to receive timestamped signals from said second set of sensors and at least one of the received signals and information from said first fusion center;
said second fusion center further configured to process all signal inputs before sending any next request to said plurality of sensors and to optimize said plurality of sensors;
said second fusion center further configured to combine the distributed signal inputs from said plurality of sensors; and
said first fusion center, said second fusion center or a combination thereof further configured to make a global decision concerning said sensor signals.
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Abstract
A method for operating a distributed multi-sensor system for spectrum mapping and signal exploitation. The method includes selecting a plurality of distributed sensors including at least one or more clusters of distributed sensors, sending a request to the plurality of distributed sensors to collect signal snapshot copies, routing the signal snapshot copies or information from the plurality of distributed sensors as inputs to at least one fusion module, processing all inputs before sending any next request to the plurality of distributed sensors, optimizing the one or more clusters of distributed sensors, combining multiple distributed signal inputs in the at least one fusion module, and making a global decision. A system for spectrum mapping and signal exploitation and a storage medium encoded with machine-readable computer code for implementing the method are also disclosed.
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Citations
20 Claims
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1. A distributed multi-sensor system for spectrum mapping and signal exploitation, comprising:
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a plurality of distributed sensors comprising a first set of sensors distributed in a first region and said first set of sensors configured to receive a plurality of non-cooperative non coherent and asynchronous signals, s(t), from an unknown transmission source of interest (SOI), each of said sensors of said first set having a sampling clock and a local memory, and providing a first set of receive signals, and said plurality of distributed sensors further comprising a second set of sensors including a cluster of sensors distributed in a second region and said second set of sensors configured to receive the plurality of non-cooperative non coherent and asynchronous signals, s(t), from the unknown transmission source (SOI), each of said cluster of sensors of said second set having a sampling clock and a local memory, and providing a plurality of received signals; said plurality of distributed sensors being configured to collect timestamped data snapshots of the SOI; a first fusion center disposed in said first region and being configured to receive timestamped signals from said first set of sensors; a second fusion center disposed outside of said first region of distributed sensors and said second region of distributed sensors and being configured to receive timestamped signals from said second set of sensors and at least one of the received signals and information from said first fusion center; said second fusion center further configured to process all signal inputs before sending any next request to said plurality of sensors and to optimize said plurality of sensors; said second fusion center further configured to combine the distributed signal inputs from said plurality of sensors; and said first fusion center, said second fusion center or a combination thereof further configured to make a global decision concerning said sensor signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system, comprising:
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a first fusion center configured to receive a first signal set from a first set of sensors that represent a signal set, process the first signal set before sending a next request to the first set of sensors and combine individual signals from the first signal set to form a first combined signal; and a second fusion center configured to receive a second signal set from a second set of sensors that represent the signal set, process the second signal set before sending a next request to the second set of sensors and combine individual signals from the second signal set to form a second combined signal, wherein the first combined signal is combined with the second combined signal to produce an ultimate combined signal, wherein the ultimate combined signal is used to produce a global decision, wherein the first signal set is produced from the first set of sensors distributed in a first region, wherein the first signal set is timestamped when received by the first fusion center, wherein the first signal set is timestamped in accordance with a sampling clock of the first set of sensors, wherein the first signal set is, when received by the first fusion center, multiple non-cooperative, non-coherent and asynchronous signals from an unknown transmission source of interest, wherein the second signal set is produced from a second set of sensors distributed in a second region, wherein the second signal set is timestamped when received by the second fusion center, where the second signal set is timestamped in accordance with a sampling clock of the second set of sensors, and wherein the second signal set is, when received by the second fusion center, multiple non-cooperative, non-coherent and asynchronous signals from the unknown transmission source of interest. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A non-transitory computer-readable medium configured to store computer-executable instructions that when executed by a processor cause the processor to perform a method, the method comprising:
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receiving a first signal set, from a first set of sensors distributed in a first region, that represent a signal of interest, wherein the first signal set at reception includes timestamp information produced in accordance with a sampling clock of the first set of sensors; processing the first signal set, wherein the first signal set is produced from the first set of sensors distributed in a first region; combining individual signals from the first signal set to form a first combined signal, wherein the individual signals from the first signal set are non-cooperative, non-coherent and asynchronous signals from an unknown transmission source of interest; sending a next request to the first set of sensors for a first subsequent signal set after processing the first signal set; receiving a second signal set from a second set of sensors that represent the signal of interest, wherein the second signal set at reception includes timestamp information produced in accordance with a sampling clock of the second set of sensors; processing the second signal set, wherein the second signal set is produced from the second set of sensors distributed in a second region; combining individual signals from the second signal set to form a second combined signal, wherein the individual signals from the second signal set are non-cooperative, non-coherent and asynchronous signals from the unknown transmission source of interest; sending a next request to the first set of sensors for a second subsequent signal set after processing the second signal set; combining the first combined signal with the second combined signal to produce a total signal; and making a global decision based, at least in part, on content of the total signal. - View Dependent Claims (18, 19, 20)
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Specification