Detecting false positioning signals based on surveillance signals
First Claim
1. A system, configured to mount on an ownship vehicle, the system comprising:
- a transceiver configured to;
receive positioning signals; and
receive surveillance signals including surveillance data from a second vehicle;
receive a first alert signal indicating that surveillance signals received by the third vehicle from the second vehicle included a discrepancy; and
processing circuitry configured to;
determine a location of the ownship vehicle based on the positioning signals received by the transceiver;
determine expected characteristics of the surveillance signals received by the transceiver from the second vehicle based on the surveillance data;
compare the expected characteristics and actual characteristics of the surveillance signals received from the second vehicle;
determine that the surveillance signals received by the transceiver from the second vehicle include a discrepancy indicative of false positioning signals in response to comparing the expected characteristics and the actual characteristics;
determine that the transceiver received the first alert signal;
determine the second vehicle received the false positioning signals in response to;
determining that the surveillance signals received by the transceiver from the second vehicle include the discrepancy; and
determining that the transceiver received the first alert signal; and
output a second alert signal indicating that the second vehicle received the false positioning signals in response to determining that the second vehicle received the false positioning signals.
1 Assignment
0 Petitions
Accused Products
Abstract
A system, configured to mount on an ownship vehicle, includes a transceiver configured to receive positioning signals and receive surveillance signals including surveillance data from a second vehicle and processing circuitry configured to determine a location of the ownship vehicle based on the positioning signals received by the transceiver and determine expected characteristics of the surveillance signals based on the surveillance data. The processing circuitry is further configured to compare the expected characteristics and actual characteristics of the surveillance signals received from the second vehicle and determine that the surveillance signals include a discrepancy indicative of false positioning signals in response to comparing the expected characteristics and the actual characteristics. The processing circuitry is configured to output an alert signal indicating the false positioning signals in response to determining that the surveillance signals include a discrepancy.
23 Citations
20 Claims
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1. A system, configured to mount on an ownship vehicle, the system comprising:
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a transceiver configured to; receive positioning signals; and receive surveillance signals including surveillance data from a second vehicle; receive a first alert signal indicating that surveillance signals received by the third vehicle from the second vehicle included a discrepancy; and processing circuitry configured to; determine a location of the ownship vehicle based on the positioning signals received by the transceiver; determine expected characteristics of the surveillance signals received by the transceiver from the second vehicle based on the surveillance data; compare the expected characteristics and actual characteristics of the surveillance signals received from the second vehicle; determine that the surveillance signals received by the transceiver from the second vehicle include a discrepancy indicative of false positioning signals in response to comparing the expected characteristics and the actual characteristics; determine that the transceiver received the first alert signal; determine the second vehicle received the false positioning signals in response to; determining that the surveillance signals received by the transceiver from the second vehicle include the discrepancy; and determining that the transceiver received the first alert signal; and output a second alert signal indicating that the second vehicle received the false positioning signals in response to determining that the second vehicle received the false positioning signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method comprising:
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receiving positioning signals; receiving surveillance signals including surveillance data from a second vehicle; receiving a first alert signal indicating that surveillance signals received by the third vehicle from the second vehicle included a discrepancy; determining a location of an ownship vehicle based on the positioning signals; determining expected characteristics of the surveillance signals received by the transceiver from the second vehicle based on the surveillance data; comparing the expected characteristics and actual characteristics of the surveillance signals received from the second vehicle; determining that the surveillance signals received by the transceiver from the second vehicle include a discrepancy indicative of false positioning signals in response to comparing the expected characteristics and the actual characteristics; determining that the transceiver received the first alert signal; determining the second vehicle received the false positioning signals in response to; determining that the surveillance signals received by the transceiver from the second vehicle include the discrepancy; and determining that the transceiver received the first alert signal; and outputting a second alert signal indicating that the second vehicle received the false positioning signals in response to determining that the second vehicle received the false positioning signals. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A non-transitory computer-readable medium having executable instructions stored thereon, configured to be executable by one or more processors for causing the one or more processors to:
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determine a location of an ownship vehicle based on positioning signals received by a transceiver mounted on the ownship vehicle; determine expected characteristics of surveillance signals received by the transceiver from a second vehicle based on surveillance data of the surveillance signals; compare the expected characteristics and actual characteristics of the surveillance signals received from the second vehicle; determine that the surveillance signals received by the transceiver from the second vehicle include a discrepancy indicative of false positioning signals in response to comparing the expected characteristics and the actual characteristics; determining that the transceiver received a first alert signal indicating that surveillance signals received by the third vehicle from the second vehicle included a discrepancy; determining the second vehicle received the false positioning signals in response to; determining that the surveillance signals received by the transceiver from the second vehicle include the discrepancy; and determining that the transceiver received the first alert signal; and output a second alert signal indicating that the second vehicle received the false positioning signals from an attacker in response to determining that the second vehicle received the false positioning signals.
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Specification