公开(公告)号：US10649080B2

公开(公告)日：2020-05-12

申请号：US15671579

申请日：2017-08-08

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Kenneth Irving Ranney ,  Gregory James Mazzaro ,  Kyle Alexander Gallagher ,  Stephen Freeman

IPC: G01S13/90 ,  G01S1/30 ,  G01S19/42 ,  G01S13/58 ,  G01S13/78 ,  G01S13/00

Abstract: A radar assembly for receiving signals at spaced frequencies from an unknown transmitting source comprising a receiver operative to receive signals; the receiver comprising a series of channels, each channel comprising a low pass filter configured to allow passage of a signal from an unknown transmitting source, an analog to digital converter configured to transform the signal from the unknown transmitting source to a digital signal, a Hilbert transform configured to transform the digital signal from the unknown transmitting source into a single sideband signal, a Fourier transform configured to transform the single sideband signal into a plurality of regularly spaced frequency samples, and an inverse Fourier transform for extracting regularly spaced frequency samples; whereby extracted pulses form a train of pulses that are inputted into an imager which utilizes synthetic aperture radar to form an image of the area of interest containing the unknown transmitting device and method thereof.

公开(公告)号：US20200025855A1

公开(公告)日：2020-01-23

申请号：US16117346

申请日：2018-08-30

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Kenneth Irving Ranney ,  Gregory James Mazzaro ,  Kyle Alexander Gallagher ,  Stephen Freeman

IPC: G01S3/04

Abstract: A method and apparatus for receiving signals from an unknown transmitting source and providing the location of the unknown transmitting source comprising a series of channels for receiving signals radiated by the unknown transmitting sources, generating preprocessed time domain data and generating a SAR image depicting a location of the unknown transmitting source, and a processor for processing the preprocessed time domain data to enhance a pixel value at each pixel location within the SAR image by summing signal data from each channel related to each pixel location to generate an enhanced SAR image.

公开(公告)号：US11131741B2

公开(公告)日：2021-09-28

申请号：US16117346

申请日：2018-08-30

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Kenneth Irving Ranney ,  Gregory James Mazzaro ,  Kyle Alexander Gallagher ,  Stephen Freeman

IPC: G01S3/04 ,  G01S13/90

Abstract: A method and apparatus for receiving signals from an unknown transmitting source and providing the location of the unknown transmitting source comprising a series of channels for receiving signals radiated by the unknown transmitting sources, generating preprocessed time domain data and generating a SAR image depicting a location of the unknown transmitting source, and a processor for processing the preprocessed time domain data to enhance a pixel value at each pixel location within the SAR image by summing signal data from each channel related to each pixel location to generate an enhanced SAR image.

公开(公告)号：US20190049575A1

公开(公告)日：2019-02-14

申请号：US15671579

申请日：2017-08-08

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Kenneth Irving Ranney ,  Gregory James Mazzaro ,  Kyle Alexander Gallagher ,  Stephen Freeman

IPC: G01S13/90 ,  G01S1/30 ,  G01S19/42 ,  G01S13/58 ,  G01S13/78

Abstract: A radar assembly for receiving signals at spaced frequencies from an unknown transmitting source comprising a receiver operative to receive signals; the receiver comprising a series of channels, each channel comprising a low pass filter configured to allow passage of a signal from an unknown transmitting source, an analog to digital converter configured to transform the signal from the unknown transmitting source to a digital signal, a Hilbert transform configured to transform the digital signal from the unknown transmitting source into a single sideband signal, a Fourier transform configured to transform the single sideband signal into a plurality of regularly spaced frequency samples, and an inverse Fourier transform for extracting regularly spaced frequency samples; whereby extracted pulses form a train of pulses that are inputted into an imager which utilizes synthetic aperture radar to form an image of the area of interest containing the unknown transmitting device and method thereof.

公开(公告)号：US20150253415A1

公开(公告)日：2015-09-10

申请号：US13870519

申请日：2013-04-25

Applicant: U.S. Army Research Laboratory ATTN: RDRL-LOC-I

Inventor： Gregory James Mazzaro ,  Anthony F. Martone

IPC: G01S7/02 ,  G01S13/42 ,  G01S7/41 ,  G01S13/04

CPC classification number: G01S7/02 ,  G01S7/354 ,  G01S7/414 ,  G01S13/04 ,  G01S13/887

Abstract: A multitone nonlinear radar system (and a method of operating such a system) comprising a transmitter that transmits a signal comprising at least two predetermined frequency components; a receiver operating to receive return signals comprising harmonics of at least two predetermined frequencies, combinations of the at least two predetermined frequency components, and combinations of the harmonics of the at least two predetermined frequency components that are within a predetermined selected frequency range that has been predetermined to enable detection and/or classification of an electronic device; at least one antenna operating to transmit and receive electromagnetic radiation operatively connected to the transmitter and receiver; the receiver comprising at least one high pass filter for attenuating linear reflections at the two predetermined frequencies, and an analyzer;whereby electronic devices may be detected and identified by analyzing return signals within a predetermined frequency range.

Abstract translation: 一种多音非线性雷达系统（以及一种操作这种系统的方法），包括发送包含至少两个预定频率分量的信号的发射机; 接收器，用于接收包括至少两个预定频率的谐波的返回信号，至少两个预定频率分量的组合，以及处于预定的选定频率范围内的至少两个预定频率分量的谐波的组合 预定的以使得能够检测和/或分类电子设备; 至少一个天线，用于发射和接收可操作地连接到发射机和接收机的电磁辐射; 所述接收机包括用于衰减两个预定频率的线性反射的至少一个高通滤波器和分析器; 从而可以通过分析预定频率范围内的返回信号来检测和识别电子设备。