公开(公告)号：US20190120932A1

公开(公告)日：2019-04-25

申请号：US15885344

申请日：2018-01-31

申请人： The Boeing Company ,  HRL Laboratories, LLC

发明人： Jason R. Smith ,  Shankar Rao ,  Peter Petre ,  Peter S. Wittenberg ,  Simon L. Haxton

IPC分类号： G01S7/28 ,  G01S7/295 ,  G01S7/52 ,  G01S7/03 ,  G01S13/32 ,  G01S13/28 ,  G01S13/90 ,  G01S13/00 ,  G01S7/02 ,  G01S13/82

摘要： A radar system including a transmit antenna for transmitting a radio frequency (RF) signal or a radar signal and a receive antenna for receiving a plurality of reflected signals created by a plurality of targets reflecting the RF signal or radar signal. The reflected signals include noise. The radar system also includes an analog-to-digital converter (ADC) that digitizes or samples the reflected signals to provide a digitized or sampled noisy input signal. The radar system further includes a reservoir computer that receives the noisy input signal. The reservoir computer includes a time-varying reservoir and is configured to de-noise the noisy input signal and provide a range measurement for each of the plurality of targets.

公开(公告)号：US11131767B2

公开(公告)日：2021-09-28

申请号：US15630690

申请日：2017-06-22

申请人： The Boeing Company

发明人： Kang-Yu Ni ,  Shankar Rao ,  Brian Limketkai

IPC分类号： G01S13/90

摘要： Systems and methods according to one or more embodiments are provided for mapping and registration of synthetic aperture raw radar data to aid in SAR-based navigation. In one example, a SAR-based navigation system includes a memory including executable instructions and a processor adapted to receive phase history data associated with observation views of a scene. The processor further converts the received phase history data associated with the observation views to a range profile of the scene. The range profile is compared to a range profile template of the scene to estimate a geometric transformation of the scene encoded in the received phase history data with respect to a reference template.

公开(公告)号：US10921422B2

公开(公告)日：2021-02-16

申请号：US15885344

申请日：2018-01-31

申请人： The Boeing Company ,  HRL Laboratories, LLC

发明人： Jason R. Smith ,  Shankar Rao ,  Peter Petre ,  Peter S. Wittenberg ,  Simon L. Haxton

IPC分类号： G01S13/26 ,  G01S7/28 ,  G01S7/295 ,  G01S7/52 ,  G01S7/03 ,  G01S13/82 ,  G01S13/28 ,  G01S13/90 ,  G01S13/00 ,  G01S7/02 ,  G01S13/32 ,  G06K9/62 ,  G01S7/41 ,  G01S13/34 ,  G01S7/292 ,  G01S7/35 ,  G06K9/00 ,  G06N3/04 ,  G01S13/02 ,  G06N3/08 ,  G01S13/87 ,  G01S13/931 ,  G01S13/933

摘要： A radar system including a transmit antenna for transmitting a radio frequency (RF) signal or a radar signal and a receive antenna for receiving a plurality of reflected signals created by a plurality of targets reflecting the RF signal or radar signal. The reflected signals include noise. The radar system also includes an analog-to-digital converter (ADC) that digitizes or samples the reflected signals to provide a digitized or sampled noisy input signal. The radar system further includes a reservoir computer that receives the noisy input signal. The reservoir computer includes a time-varying reservoir and is configured to de-noise the noisy input signal and provide a range measurement for each of the plurality of targets.

公开(公告)号：US20180372862A1

公开(公告)日：2018-12-27

申请号：US15630690

申请日：2017-06-22

申请人： The Boeing Company

发明人： Kang-Yu Ni ,  Shankar Rao ,  Brian Limketkai

IPC分类号： G01S13/90

摘要： Systems and methods according to one or more embodiments are provided for mapping and registration of synthetic aperture raw radar data to aid in SAR-based navigation. In one example, a SAR-based navigation system includes a memory including executable instructions and a processor adapted to receive phase history data associated with observation views of a scene. The processor further converts the received phase history data associated with the observation views to a range profile of the scene. The range profile is compared to a range profile template of the scene to estimate a geometric transformation of the scene encoded in the received phase history data with respect to a reference template.

公开(公告)号：US11531639B2

公开(公告)日：2022-12-20

申请号：US16046499

申请日：2018-07-26

申请人： The Boeing Company

发明人： Peter Petre ,  Shankar Rao ,  Gabriel Virbila

IPC分类号： H04L27/10 ,  G06F15/78 ,  G06F1/10 ,  G06N3/08

摘要： Techniques for denoising an electromagnetic signal are disclosed. The techniques utilize an antenna, a weight adaptation component, a reservoir computer including a computer interpretable neural network, a delay embedding component, and an output layer computer. The techniques include passively acquiring an electromagnetic signal by the antenna, producing a plurality of reservoir state values by the reservoir computer based on the electromagnetic signal, collecting the plurality of reservoir state values by the delay embedding component into a historical record, determining a plurality of reservoir state value weights by the weight adaptation component based at least in part of the historical record, scaling, by the plurality of reservoir state value weights, to produce a plurality of output values, the plurality of reservoir state values by the output layer computer, and outputting the plurality of output values, where the scaling occurs over a plurality of clock cycles of a clock for the system.