-
公开(公告)号：US10783430B2
公开(公告)日：2020-09-22
申请号：US15276188
申请日：2016-09-26
Applicant: The Boeing Company , HRL Laboratories, LLC
Inventor： Peter S. Wittenberg , Peter Petre , Shankar R. Rao
IPC: G06N3/06 , G06N3/063 , G01R23/167 , G06F17/16 , G06N3/04 , G06N3/08 , H03F3/19 , H04B1/00 , H04B1/12 , H03H17/02 , H03H17/00 , H03H21/00
Abstract: A method for removing an extracted RF signal to examine a spectrum of at least one other RF signal includes receiving a mixture signal by an ADC. The mixture signal includes a plurality of separate signals from different signal sources. The mixture signal is digitized by the ADC. A first digitized signal and a second digitized signal are generated that are the same. The first digitized signal is delayed a predetermined time delay and the second digitized signal is processed in a neuromorphic signal processor to extract an extracted signal. The predetermined time delay corresponds to a delay embedding in the neuromorphic signal processor. A phase delay and amplitude of the extracted signal is adjusted based on a phase delay and amplitude of the first digitized signal. An adjusted extracted signal is cancelled from the first digitized signal to provide an input examination signal for examination.
-
2.发明申请公开(公告)号：US20180074171A1
公开(公告)日：2018-03-15
申请号：US15262987
申请日：2016-09-12
Applicant: THE BOEING COMPANY , HRL LABORATORIES
Inventor： Gary Alan Ray , Peter Petre , Charles E. Martin , Shankar R. Rao
CPC classification number: G01S7/2923 , G01R23/155 , G01S7/006 , G01S7/021 , G01S13/66
Abstract: A method for generating pulse descriptor words (PDWs) including frequency and/or bandwidth data from time-varying signals received by a sensor includes filtering, at a plurality of blind source separation (BSS) modules, signals derived from the time-varying signals, each BSS module including a filtering subsystem having a plurality of filter modules. Each filter module has a frequency filter coefficient (α) and is parameterized by a center frequency (f). The method also includes transmitting at least one blind source separated signal from the BSS modules to a PDW generation module communicatively coupled to the filtering subsystem. The method further includes generating, using the PDW generation module and based on the blind source separated signal, at least one PDW parameter vector signal containing the frequency data. The method also includes updating, upon generating and based on the PDW parameter vector signal, values of α and/or f for each filter module.
-
公开(公告)号：US20210109210A1
公开(公告)日：2021-04-15
申请号：US16601554
申请日：2019-10-14
Applicant: The Boeing Company
Inventor： Adour V. Kabakian , Soheil Kolouri , Brian N. Limketkai , Shankar R. Rao
IPC: G01S13/90
Abstract: Described is a stripmap SAR system on a vehicle comprising an antenna that is fixed and directed outward from the side of the vehicle, a SAR sensor, a storage, and a computing device. The computing device comprises a memory, one or more processing units, and a machine-readable medium on the memory. The machine-readable medium stores instructions that, when executed by the one or more processing units, cause the stripmap SAR system to perform various operations. The operations comprise: receiving stripmap range profile data associated with observed views of a scene; transforming the received stripmap range profile data into partial circular range profile data; comparing the partial circular range profile data to a template range profile data of the scene; and estimating registration parameters associated with the partial circular range profile data relative to the template range profile data to determine a deviation from the template range profile data.
-
公开(公告)号：US20180089558A1
公开(公告)日：2018-03-29
申请号：US15276188
申请日：2016-09-26
Applicant: The Boeing Company , HRL Laboratories, LLC
Inventor： Peter S. Wittenberg , Peter Petre , Shankar R. Rao
Abstract: A method for removing an extracted RF signal to examine a spectrum of at least one other RF signal includes receiving a mixture signal by an ADC. The mixture signal includes a plurality of separate signals from different signal sources. The mixture signal is digitized by the ADC. A first digitized signal and a second digitized signal are generated that are the same. The first digitized signal is delayed a predetermined time delay and the second digitized signal is processed in a neuromorphic signal processor to extract an extracted signal. The predetermined time delay corresponds to a delay embedding in the neuromorphic signal processor. A phase delay and amplitude of the extracted signal is adjusted based on a phase delay and amplitude of the first digitized signal. An adjusted extracted signal is cancelled from the first digitized signal to provide an input examination signal for examination.
-
公开(公告)号：US20210231795A1
公开(公告)日：2021-07-29
申请号：US16752575
申请日：2020-01-24
Applicant: The Boeing Company
Inventor： Soheil Kolouri , Shankar R. Rao
Abstract: A synthetic aperture radar (SAR) system is disclosed. The SAR comprises a memory, a convolutional neural network (CNN), a machine-readable medium on the memory, and a machine-readable medium on the memory. The machine-readable medium storing instructions that, when executed by the CNN, cause the SAR system to perform operations. The operation comprises: receiving range profile data associated with observed views of a scene; concatenating the range profile data with a template range profile data of the scene; and estimating registration parameters associated with the range profile data relative to the template range profile data to determine a deviation from the template range profile data.
-
Patent Agency Ranking
公开(公告)号：US10429491B2
公开(公告)日：2019-10-01
申请号：US15262987
申请日：2016-09-12
Applicant: THE BOEING COMPANY , HRL LABORATORIES, LLC
Inventor： Gary Alan Ray , Peter Petre , Charles E. Martin , Shankar R. Rao
Abstract: A method for generating pulse descriptor words (PDWs) including frequency and/or bandwidth data from time-varying signals received by a sensor includes filtering, at a plurality of blind source separation (BSS) modules, signals derived from the time-varying signals, each BSS module including a filtering subsystem having a plurality of filter modules. Each filter module has a frequency filter coefficient (α) and is parameterized by a center frequency (f). The method also includes transmitting at least one blind source separated signal from the BSS modules to a PDW generation module communicatively coupled to the filtering subsystem. The method further includes generating, using the PDW generation module and based on the blind source separated signal, at least one PDW parameter vector signal containing the frequency data. The method also includes updating, upon generating and based on the PDW parameter vector signal, values of α and/or f for each filter module.
-
公开(公告)号：US20220222512A1
公开(公告)日：2022-07-14
申请号：US17565400
申请日：2021-12-29
Applicant: The Boeing Company
Inventor： Gabriel L. Virbila , Peter Petre , Shankar R. Rao
Abstract: Implementations provide denoising a signal. A plurality of reservoir state values are produced based on the signal and the plurality of reservoir state values are collected into a historical record. A plurality of reservoir state value weights are calculated based at least in part on the historical record to produce a plurality of output values. The plurality of reservoir state value weights are computed over multiple clock cycles of a clock for the cognitive signal processor system. The plurality of output values are output. A more accurate representation of a next of set of output layer weights is thereby obtained.
-
公开(公告)号：US11333753B2
公开(公告)日：2022-05-17
申请号：US16601554
申请日：2019-10-14
Applicant: The Boeing Company
Inventor： Adour V. Kabakian , Soheil Kolouri , Brian N. Limketkai , Shankar R. Rao
IPC: G01S13/90
Abstract: Described is a stripmap SAR system on a vehicle comprising an antenna that is fixed and directed outward from the side of the vehicle, a SAR sensor, a storage, and a computing device. The computing device comprises a memory, one or more processing units, and a machine-readable medium on the memory. The machine-readable medium stores instructions that, when executed by the one or more processing units, cause the stripmap SAR system to perform various operations. The operations comprise: receiving stripmap range profile data associated with observed views of a scene; transforming the received stripmap range profile data into partial circular range profile data; comparing the partial circular range profile data to a template range profile data of the scene; and estimating registration parameters associated with the partial circular range profile data relative to the template range profile data to determine a deviation from the template range profile data.
-
公开(公告)号：US11255960B2
公开(公告)日：2022-02-22
申请号：US16752575
申请日：2020-01-24
Applicant: The Boeing Company
Inventor： Soheil Kolouri , Shankar R. Rao
Abstract: A synthetic aperture radar (SAR) system is disclosed. The SAR comprises a memory, a convolutional neural network (CNN), a machine-readable medium on the memory, and a machine-readable medium on the memory. The machine-readable medium storing instructions that, when executed by the CNN, cause the SAR system to perform operations. The operation comprises: receiving range profile data associated with observed views of a scene; concatenating the range profile data with a template range profile data of the scene; and estimating registration parameters associated with the range profile data relative to the template range profile data to determine a deviation from the template range profile data.
-
公开(公告)号：US11169258B2
公开(公告)日：2021-11-09
申请号：US16407460
申请日：2019-05-09
Applicant: The Boeing Company
Inventor： Shankar R. Rao , Kang-Yu Ni , Soheil Kolouri
Abstract: Systems and methods according to one or more embodiments are provided for registration of synthetic aperture range profile data to aid in SAR-based navigation. In one example, a SAR-based navigation system includes a memory comprising a plurality of executable instructions. The SAR-based navigation system further includes a processor adapted to receive range profile data associated with observed views of a scene, compare the range profile data to a template range profile data of the scene, and estimate registration parameters associated with the range profile data relative to the template range profile data to determine a deviation from the template range profile data.
-
-
-
-
-
-
-
-
-
Search Results
12
records
(took 0.017 seconds)
