公开(公告)号：US11742953B2

公开(公告)日：2023-08-29

申请号：US17681629

申请日：2022-02-25

Applicant: Raytheon Company

Inventor： Vahid Ataie

IPC: H04B10/2575 ,  H04B10/61 ,  H04B10/50

CPC classification number: H04B10/6161 ,  H04B10/2575 ,  H04B10/505 ,  H04B2210/25

Abstract: An apparatus includes a first antenna, a tunable optical carrier source, a second antenna, and a delay generation module coupled to the first antenna and the tunable optical carrier source. The apparatus also includes a fixed wavelength optical carrier source, an optical carrier generation module coupled to the fixed wavelength optical carrier source, and a local oscillator generation module. The apparatus further includes a correlative kernel generation and integration module coupled to the delay generation module and the local oscillator generation module and an optoelectronic conversion module coupled to the correlative kernel generation and integration module.

公开(公告)号：US12028114B2

公开(公告)日：2024-07-02

申请号：US18315177

申请日：2023-05-10

Applicant: Raytheon Company

Inventor： Vahid Ataie

IPC: H04B10/2575 ,  H04B10/50 ,  H04B10/61

CPC classification number: H04B10/6161 ,  H04B10/2575 ,  H04B10/505 ,  H04B2210/25

Abstract: An apparatus includes a tunable optical carrier source configured to generate a tunable optical carrier and a fixed wavelength optical carrier source configured to generate a fixed wavelength optical carrier. The apparatus also includes first and second optical modulators configured to modulate the tunable optical carrier and the fixed wavelength optical carrier based on first and second of multiple input signals. The apparatus further includes a delay element configured to delay the modulated tunable optical carrier, first and second optical detectors coupled to the delay element, and third and fourth optical modulators coupled to the first and second optical detectors. In addition, the apparatus includes a wavelength division demultiplexer optically coupled to the third and fourth optical modulators, a plurality of optical 90-degree hybrid elements optically coupled to the wavelength division demultiplexer, and a plurality of optical detectors optically coupled to corresponding ones of the optical 90-degree hybrid elements.

公开(公告)号：US11575447B2

公开(公告)日：2023-02-07

申请号：US17681623

申请日：2022-02-25

Applicant: Raytheon Company

Inventor： Vahid Ataie

IPC: H04B10/54 ,  H04B10/556 ,  H04B10/50

Abstract: An apparatus for generating a time-delayed product of two independent signals includes a fixed-wavelength laser. A first optical modulator is optically coupled to the fixed-wavelength laser and configured to modulate a fixed wavelength optical carrier with a first input signal of a set of input signals. The apparatus also includes a tunable laser. A second optical modulator is optically coupled to the tunable laser and configured to modulate a tunable optical carrier with a second input signal of the set of input signals. The apparatus also includes a dispersive element coupled to the second optical modulator, a first optical detector coupled to the dispersive element, a third optical modulator optically coupled to the first optical detector and the first optical modulator, an optical 90-degree hybrid element optically coupled to the third optical modulator, and a plurality of optical detectors optically coupled to the optical 90-degree hybrid element.

公开(公告)号：US12020573B2

公开(公告)日：2024-06-25

申请号：US17825899

申请日：2022-05-26

Applicant: Raytheon Company

Inventor： Vahid Ataie

IPC: H04N5/44 ,  G08G1/16 ,  H04W4/02 ,  H04W4/40

CPC classification number: G08G1/166 ,  H04W4/027 ,  H04W4/40

Abstract: Systems and methods for mapping location and characteristics about traffic participants are described. The systems and methods advantageously use correlative receivers for observing wireless emissions from or reflected by a plurality of traffic participants to allow for tracking geolocation and velocimetry information in real-time. The real-time geolocation and velocimetry information can be useful in autonomous vehicle navigation applications and useful for reducing computational burdens associated with tracking locations of many multiple traffic participants using direct sensor measurements, for example.

公开(公告)号：US20230283382A1

公开(公告)日：2023-09-07

申请号：US18315177

申请日：2023-05-10

Applicant: Raytheon Company

Inventor： Vahid Ataie

IPC: H04B10/61 ,  H04B10/50 ,  H04B10/2575

CPC classification number: H04B10/6161 ,  H04B10/505 ,  H04B10/2575 ,  H04B2210/25

Abstract: An apparatus includes a tunable optical carrier source configured to generate a tunable optical carrier and a fixed wavelength optical carrier source configured to generate a fixed wavelength optical carrier. The apparatus also includes first and second optical modulators configured to modulate the tunable optical carrier and the fixed wavelength optical carrier based on first and second of multiple input signals. The apparatus further includes a delay element configured to delay the modulated tunable optical carrier, first and second optical detectors coupled to the delay element, and third and fourth optical modulators coupled to the first and second optical detectors. In addition, the apparatus includes a wavelength division demultiplexer optically coupled to the third and fourth optical modulators, a plurality of optical 90-degree hybrid elements optically coupled to the wavelength division demultiplexer, and a plurality of optical detectors optically coupled to corresponding ones of the optical 90-degree hybrid elements.

公开(公告)号：US12292526B2

公开(公告)日：2025-05-06

申请号：US17825902

申请日：2022-05-26

Applicant: Raytheon Company

Inventor： Vahid Ataie

IPC: G01S5/04 ,  G01S5/02 ,  H04W4/02 ,  H04W4/029

Abstract: Systems and methods for mapping location and characteristics about wireless emitters are described. The systems and methods advantageously use correlative receivers for observing the emissions from the wireless emitters without decrypting or decoding information included in the emissions from the wireless emitters to allow for tracking location and emitter class and type in real-time. The real-time geolocation and emitter class information for many receivers in a geographic area can be determined and overlaid on a map, for example.

公开(公告)号：US20220381874A1

公开(公告)日：2022-12-01

申请号：US17825902

申请日：2022-05-26

Applicant: Raytheon Company

Inventor： Vahid Ataie

IPC: G01S5/04 ,  H04W4/02 ,  H04W4/029 ,  G01S5/02

Abstract: Systems and methods for mapping location and characteristics about wireless emitters are described. The systems and methods advantageously use correlative receivers for observing the emissions from the wireless emitters without decrypting or decoding information included in the emissions from the wireless emitters to allow for tracking location and emitter class and type in real-time. The real-time geolocation and emitter class information for many receivers in a geographic area can be determined and overlaid on a map, for example.

公开(公告)号：US11901949B2

公开(公告)日：2024-02-13

申请号：US18068921

申请日：2022-12-20

Applicant: Raytheon Company

Inventor： Vahid Ataie

IPC: H04B10/54 ,  H04B10/556 ,  H04B10/50

CPC classification number: H04B10/541 ,  H04B10/503 ,  H04B10/556

Abstract: An apparatus for generating a time-delayed product of two independent signals includes a fixed-wavelength laser. A first optical modulator is optically coupled to the fixed-wavelength laser and configured to modulate a fixed wavelength optical carrier with a first input signal of a set of input signals. The apparatus also includes a tunable laser. A second optical modulator is optically coupled to the tunable laser and configured to modulate a tunable optical carrier with a second input signal of the set of input signals. The apparatus also includes a dispersive element coupled to the second optical modulator, a first optical detector coupled to the dispersive element, a third optical modulator optically coupled to the first optical detector and the first optical modulator, an optical 90-degree hybrid element optically coupled to the third optical modulator, and a plurality of optical detectors optically coupled to the optical 90-degree hybrid element.

公开(公告)号：US20230122489A1

公开(公告)日：2023-04-20

申请号：US18068921

申请日：2022-12-20

Applicant: Raytheon Company

Inventor： Vahid Ataie

IPC: H04B10/54 ,  H04B10/556 ,  H04B10/50

Abstract: An apparatus for generating a time-delayed product of two independent signals includes a fixed-wavelength laser. A first optical modulator is optically coupled to the fixed-wavelength laser and configured to modulate a fixed wavelength optical carrier with a first input signal of a set of input signals. The apparatus also includes a tunable laser. A second optical modulator is optically coupled to the tunable laser and configured to modulate a tunable optical carrier with a second input signal of the set of input signals. The apparatus also includes a dispersive element coupled to the second optical modulator, a first optical detector coupled to the dispersive element, a third optical modulator optically coupled to the first optical detector and the first optical modulator, an optical 90-degree hybrid element optically coupled to the third optical modulator, and a plurality of optical detectors optically coupled to the optical 90-degree hybrid element.

公开(公告)号：US11567351B2

公开(公告)日：2023-01-31

申请号：US17467887

申请日：2021-09-07

Applicant: Raytheon Company

Inventor： Vahid Ataie

IPC: H04J14/02 ,  G02F1/01 ,  G02F1/133 ,  H04B1/711 ,  H04J14/00 ,  G01B9/02002

Abstract: An apparatus for generating a set of spectral correlation coefficients of an input signal includes: a master laser configured to generate an optical frequency comb signal; a first optical modulator configured to modulate the optical frequency comb signal with an input signal to generate a plurality of spectral copies of the input signal; a dispersive element configured to delay the plurality of spectral copies of the input signal by a wavelength-dependent time delay; a second optical modulator configured to modulate the delayed plurality of spectral copies with a conjugate of the input signal; and an optical comb filter configured to integrate the conjugate modulated plurality of spectral copies of the input signal to generate a set of cyclic autocorrelation coefficients.