SIGNAL REMOVAL TO EXAMINE A SPECTRUM OF ANOTHER SIGNAL

    公开(公告)号:US20180089558A1

    公开(公告)日:2018-03-29

    申请号:US15276188

    申请日:2016-09-26

    摘要: 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.

    Signal removal to examine a spectrum of another signal

    公开(公告)号:US10783430B2

    公开(公告)日:2020-09-22

    申请号:US15276188

    申请日:2016-09-26

    摘要: 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.

    Short-Range Point Defense Radar
    5.
    发明申请
    Short-Range Point Defense Radar 有权
    短距点防御雷达

    公开(公告)号:US20160139254A1

    公开(公告)日:2016-05-19

    申请号:US14540116

    申请日:2014-11-13

    IPC分类号: G01S13/04 G01S7/35

    摘要: A multi-beam frequency-modulated continuous wave (FMCW) radar system designed for short range (

    摘要翻译: 一种多光束调频连续波(FMCW)雷达系统,设计用于在高密度威胁环境中进行短距离(<20 km)的操作,以抵御高度机动威胁。 多光束FMCW系统能够为整个半球提供针对短距离目标的连续更新,包括搜索和跟踪。 多波束方面用于覆盖整个领域,而FMCW方面用于以显着降低的计算量实现分辨率。

    Automatic aircraft positioning systems and methods

    公开(公告)号:US11409309B2

    公开(公告)日:2022-08-09

    申请号:US16817661

    申请日:2020-03-13

    摘要: An automatic aircraft positioning system includes a first aircraft including one more fiducials, and a second aircraft including a positioning radar, control devices that are configured to control operation of the second aircraft, and a control unit in communication with the positioning radar and the control devices. The positioning radar is configured to transmit a radar transmit signal. The one or more fiducials are configured to receive the radar transmit signal and output one or more return signals in response to the radar transmit signal. The positioning radar is configured to receive the one or more return signals and determine a position and orientation of the second aircraft relative to the first aircraft, or vice versa, from the one or more return signals. The control unit is configured to automatically control the second aircraft in relation to the first aircraft during an automatic positioning mode.

    Automated object analysis system
    7.
    发明授权
    Automated object analysis system 有权
    自动对象分析系统

    公开(公告)号:US09196147B1

    公开(公告)日:2015-11-24

    申请号:US13911630

    申请日:2013-06-06

    IPC分类号: G08B13/00 G08B21/18

    CPC分类号: G08B13/19613 G08B21/18

    摘要: A method and apparatus for analyzing movement of objects in a border area. Information about the movement of the objects in the border area is identified from sensor data. The information about the movement of the objects in the border area is compared with movement information for the border area to form a comparison. An alert is generated when the comparison indicates that an object of interest in the objects is present.

    摘要翻译: 一种用于分析边界区域中的物体运动的方法和装置。 从传感器数据识别关于边界区域中物体移动的信息。 将边界区域的物体移动信息与边界区域的移动信息进行比较,形成比较。 当比较指示对象中感兴趣的对象存在时,生成警报。

    SYSTEMS, METHODS, AND APPARATUS FOR ESTIMATING ANGLE OF ARRIVAL

    公开(公告)号:US20240192301A1

    公开(公告)日:2024-06-13

    申请号:US18065266

    申请日:2022-12-13

    IPC分类号: G01S3/10

    CPC分类号: G01S3/10 G01S3/46

    摘要: Systems, methods, and apparatus for processing signals using a sensor arrays are disclosed. In one aspect, an apparatus comprising a sensor array and a computing device is provided. The computing device may comprise one or more processors configured to generate a data matrix based on one or more signals received at each of the plurality of sensor and to determine a covariance matrix based on the data matrix. The one or more processors may also be configured to decompose the covariance matrix into a matrix of eigenvalues and a matrix of eigenvectors and to determine a projected data matrix based on applying the data matrix to the eigenvector matrix. Further, the one or more processors may be configured to determine a denoised projected data matrix based on denoising the projected data matrix and to determine a denoised data matrix based on the denoised projected data matrix.

    Angular resolution of targets using separate radar receivers

    公开(公告)号:US11002819B2

    公开(公告)日:2021-05-11

    申请号:US15960958

    申请日:2018-04-24

    IPC分类号: G01S3/50 G01S7/292

    摘要: A radar system includes a transmitter for transmitting a radio frequency (RF) signal or a radar signal and a plurality of receivers. Each receiver receives a plurality of reflected signals created by a plurality of targets reflecting the RF signal or radar signal. The reflected signals include background noise and each of the receivers are separated by a predetermined distance. The radar system also includes a multiple input de-noiser configured to de-noise input signals from the plurality of receivers and to determine a time difference of arrival of the reflected signals between the plurality of receivers. A detection and angular resolution module is configured to determine an angular resolution between the plurality of targets using the time difference of arrival of the reflected signals between the plurality of receivers.

    Simultaneous nulling and beamfocusing from disparate antennas

    公开(公告)号:US10601479B2

    公开(公告)日:2020-03-24

    申请号:US16378283

    申请日:2019-04-08

    IPC分类号: H04B7/06 H04B7/08

    摘要: In an antenna array, signals may be manipulated to increase coherency at certain locations (beamfocusing) and reduce or cancel the signals at other locations (nulling). This is accomplished by multiplying the signals received or transmitted by the set of antennas by a weight vector that is generated by determining a covariance matrix based on a vector representing signals at the set of antennas, vectors representing the desired beamfocusing and nulling locations, and a desired nulling depth.