Abstract: A system for time-frequency separation based on image analysis of one or more spectrograms of multiple radio signals received over time from one or more emitters, the system comprising a processing circuitry configured to: determine, using image analysis, a region of at least one of the spectrograms containing representations of a superposition of two or more overlapping radio signals of the radio signals, the overlapping radio signals being representations of radio signals sharing a common time-frequency within the at least one of the spectrograms; decompose the superposition of the two or more overlapping radio signals within the region into separate signal representations, wherein each given separate signal representation of the separate signal representations is expressed by a corresponding bounding box around the given separate signal representation; and perform, utilizing the separate signal representations, one or more actions.
Abstract: A system for determining a direction of arrival of a radio signal being emitted by a radio emitter, the system including: a single antenna configured to be moved through multiple spatial positions and configured to receive the radio signal at two or more of the multiple spatial positions; and a controller configured to determine one or more directions of arrival of the radio signal based on: a radio signal frequency; at least one residual phase difference value between at least two of two or more residual phase values each obtained based on the radio signal received by the single antenna at one of the two or more multiple spatial positions; and at least a portion of a motion data indicative of the movement of the single antenna.
Type:
Grant
Filed:
April 20, 2023
Date of Patent:
October 31, 2023
Assignee:
Elbit Systems EW and Sigint - Elisra Ltd.
Abstract: A system for determining a direction of arrival of a radio signal being emitted by a radio emitter, the system including: a single antenna configured to be moved through multiple spatial positions and configured to receive the radio signal at two or more of the multiple spatial positions; and a controller configured to determine one or more directions of arrival of the radio signal based on: a radio signal frequency; at least one residual phase difference value between at least two of two or more residual phase values each obtained based on the radio signal received by the single antenna at one of the two or more multiple spatial positions; and at least a portion of a motion data indicative of the movement of the single antenna.
Type:
Application
Filed:
April 20, 2023
Publication date:
August 17, 2023
Applicant:
Elbit Systems EW and Sigint - Elisra Ltd.
Abstract: A tactical electronic counter measure system comprising a first retro-directional transceiver sub-system, receiving signals at a first frequency band, and first retro-directional transceiver re-transmitting a signal at least substantially toward the direction from which the sources signal was received, and first retro-directional transceiver sub-system including a plurality of blade antennas and a controller, coupled with and first retro-directional transceiver, and controller controlling the activity of and first retro-directional transceiver sub-system, and controller further managing the missions of and first retro-directional transceiver sub-system.
Type:
Grant
Filed:
May 11, 2012
Date of Patent:
February 5, 2013
Assignee:
Elbit Systems EW and Sigint—Elisra Ltd.
Inventors:
Reuel Manela, Arye Raybee, Eran Kanter, David Blank
Abstract: A tactical electronic counter measure system comprising a first retro-directional transceiver sub system, receiving signals at a first frequency band, and first retro-directional transceiver re transmitting a signal at least substantially toward the direction from which the sources signal was received, and first retro directional transceiver sub system including a plurality of blade antennas and a controller, coupled with and first retro-directional transceiver, and controller controlling the activity of and first retro directional transceiver sub system, and controller further managing the missions of and first retro directional transceiver sub system.
Type:
Grant
Filed:
April 6, 2011
Date of Patent:
June 19, 2012
Assignee:
Elbit Systems EW and Sigint—Elisra Ltd.
Inventors:
Reuel Manela, Arye Raybee, Eran Kanter, David Blank