RF jamming detection and mitigation system

• US 9,166,730 B2
• Filed: 09/26/2013
• Issued: 10/20/2015
• Est. Priority Date: 09/26/2013
• Status: Active Grant

• Current Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Original Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Inventors: Van Wiemeersch, John Robert
• Primary Examiner(s): Hanidu, Ganiyu A
• Application Number:
  US14/037,519
• Publication Number:
  US 20150087241A1
• Time in Patent Office: 754 Days
• Field of Search: 455/500, 455/343.2, 455/41.2, 455/238.1, 455/450, 455/404.1, 455/522, 455/67.11, 455/69, 340/426.1, 340/5.53, 340/435, 340/436, 340/461, 340/426.26, 340/426.18, 340/439, 340/5.2, 340/5.64
• US Class Current: 1/1
• CPC Class Codes: H04K 2203/22 for communication related to vehicles
• CPC Class Codes: H04K 3/22 including jamming detection and monitoring
• CPC Class Codes: H04L 63/061 for key exchange, e.g. in peer-to-peer networks cryptographic mechanisms or cryptographic arrangements for key agreement H04L9/0838
• CPC Class Codes: H04L 67/141 Setup of application sessions admission control or resource allocation in data switching networks H04L47/70

Abstract

A vehicle system for detecting a jamming signal may include a receiver configured to receive a signal, the signal having signal properties. A controller may be in communication with the receiver configured to determine a jamming event probability based at least in part on the signal properties.

Claims

1. A vehicle system for detecting a jamming signal, comprising:

a receiver configured to receive a radio frequency (RF) signal; and

a controller in communication with the receiver configured to generate data indicating high probability that the RF signal defines a jamming event able to interfere with reception of other RF signals at the receiver in response to signal strength and signal duration of the RF signal exceeding respective predefined thresholds, and

generate data indicating moderate probability that the RF signal defines the jamming event in response to the signal strength or signal duration exceeding the respective predefined thresholds.

2. The system of claim 1, further comprising a database in communication with the controller.

3. The system of claim 2, wherein the controller is further configured to provide an alert in response to the data indicating high probability or moderate probability.

4. The system of claim 2, wherein the database is configured to maintain a pre-established jamming mitigation measure and wherein the controller is configured to activate the pre-established jamming mitigation measure.

5. The system of claim 2, wherein the database is configured to maintain jamming event probability data.

6. The system of claim 5, wherein the controller is configured to transmit the jamming event probability data.

7. A method comprising:

receiving a radio frequency (RF) signal; and

generating, by a computer,

data indicating high probability that the RF signal defines a jamming event able to interfere with reception of other RF signal in response to a strength and duration of the RF signal exceeding respective predefined thresholds , and

data indicating moderate probability that the RF signal defines the jamming event in response to the strength or duration exceeding the respective predefined thresholds.

8. The method of claim 7, further comprising sending an alert message in response to the data indicating high or moderate probability.

9. The method of claim 7, further comprising activating a pre-established jamming mitigation measure.

10. The method of claim 7, further comprising maintaining jamming event probability data recorded in response to the data indicating high or moderate probability.

11. The method of claim 10, further comprising transmitting the jamming event probability data to a remote server.

12. The method of claim 11, further comprising receiving a report from the remote server describing the jamming event probability data.