公开(公告)号：US10776653B2

公开(公告)日：2020-09-15

申请号：US15751188

申请日：2016-08-11

Applicant: YEDA RESEARCH AND DEVELOPMENT CO. LTD.

Inventor： Avishay Gal-Yam ,  Barak Zackay ,  Eran Ofek

IPC: G06K9/46 ,  G06T7/254 ,  G06K9/00 ,  G06K9/20 ,  G06K9/40

Abstract: A System and a method for processing at least two M-dimensional data-measurements (DMs) of a physical-property for detecting one or more new-objects and/or a transition of one or more known-objects, in complex constant-background DMs, using at least one processor and at least one memory element, the method comprising: generating a filtered-new-DM by match-filtering a new-DM, respective to impulse response of a reference-DM; generating a filtered-reference-DM by match-filtering the reference-DM, respective to impulse response of the new-DM; generating an M-dimensional object-indicator (OI) by subtracting the filtered-reference-DM from the filtered-new-DM, or vice versa; and generating an M-dimensional data score (DS) from the M-dimensional OI, where each of the scores is a probe for existence of an object at a specific M-dimensional location.

公开(公告)号：US09998198B2

公开(公告)日：2018-06-12

申请号：US15346747

申请日：2016-11-09

Applicant: YEDA RESEARCH AND DEVELOPMENT CO. LTD.

Inventor： Avishay Gal-Yam ,  Barak Zackay ,  Eran Ofek

IPC: H04B1/00 ,  H04B7/08 ,  H04B17/20

CPC classification number: H04B7/0851 ,  H04B17/20 ,  H04B17/318 ,  H04B17/3912

Abstract: A method for detecting a dispersed pulse in a received signal that has been dispersed by a dispersive medium includes obtaining an input array of cells, each indicating an intensity of a frequency component of the signal at a representative time. A fast dispersion measure transform (FDMT) is applied to concurrently sum the cells of the input array that lie along different dispersion curves, each curve defined by a known non-linear functional form and being uniquely characterized by a time coordinate and by a value of the dispersion measure. Application of FDMT includes initially generating a plurality of sub-arrays, each representing a frequency sub-band and iteratively combining pairs of adjacent sub-arrays in accordance with an addition rule until all of the initially generated plurality of sub-arrays are combined into an output array of the sums, in which a cell of the output array that is indicative of a transmitted pulse is identified.

公开(公告)号：US20170141835A1

公开(公告)日：2017-05-18

申请号：US15346747

申请日：2016-11-09

Applicant: YEDA RESEARCH AND DEVELOPMENT CO. LTD.

Inventor： Avishay Gal-Yam ,  Barak Zackay ,  Eran Ofek

IPC: H04B7/08 ,  H04B17/20

CPC classification number: H04B7/0851 ,  H04B17/20 ,  H04B17/318 ,  H04B17/3912

Abstract: A method for detecting a dispersed pulse in a received signal that has been dispersed by a dispersive medium includes obtaining an input army of cells, each indicating an intensity of a frequency component of the signal at a representative time. A fast dispersion measure transform (FDMT) is applied to concurrently sum the cells of the input array that lie along different dispersion curves, each curve defined by a known non-linear functional form and being uniquely characterized by a time coordinate and by a value of the dispersion measure. Application of FDMT includes initially generating a plurality of sub-arrays, each representing a frequency sub-band and iteratively combining pairs of adjacent sub-arrays in accordance with an addition rule until all of the initially generated plurality of sub-arrays are combined into an output army of the sums, in which a cell of the output array that is indicative of a transmitted pulse is identified.