公开(公告)号：US20220285836A1

公开(公告)日：2022-09-08

申请号：US16676700

申请日：2019-11-07

Applicant: Elta Systems Ltd.

Inventor： Harel BADICHI ,  Zvi LIFSHIZ ,  Feri TAYOURI ,  Sharon COHEN ,  Amir SHMUEL

IPC: H01Q3/22 ,  G08G5/00 ,  G06T7/70 ,  G01S13/08 ,  G01S19/01 ,  G01S13/86 ,  G05D1/10 ,  B64C39/02 ,  B64D47/00

Abstract: An array antenna configured to be placed at a determined position above the ground surface. The array antenna is assembled by a plurality of unmanned aerial vehicles (UAVs), each UAV carrying one or more antenna elements of the array antenna. The plurality of UAVs configured to create a defined formation at the determined position above the ground and thereby align the one or more antenna elements carried by the UAVs to form the array antenna. The array antenna configured to receive electromagnetic signals reflected from a region of interest, or from one or more objects, within its line of sight.

公开(公告)号：US20240063538A1

公开(公告)日：2024-02-22

申请号：US18341294

申请日：2023-06-26

Applicant: Elta Systems Ltd.

Inventor： Feri TAYOURI ,  Eldad SHALOM ,  Zion RAVEH

IPC: H01Q3/26

CPC classification number: H01Q3/267

Abstract: A computer implemented method for self-calibration of a Phased Array Antenna (PAA) having an array of N antenna elements. Each element operates as a transmit antenna element and/or as a receive antenna element. The method includes building an overdetermined system of linear equations presenting different couples of antenna elements. Each equation expressing a difference between a value of a real parameter, determined for a specific couple, and a sum of unknowns including unknown calibrated parameters of the antenna elements forming the specific couple, Next, solving the system of equations for obtaining a solution in the form of values of corrections to be applied to corresponding antenna elements in the array, in order to reduce the difference in each of the equations by bringing internal parameters of the antenna elements in a specific couple closer to their respective unknown calibrated parameters. Each couple being formed from a transmit antenna element and a receive antenna element positioned at an arbitrary distance from one another in the PAA array.

公开(公告)号：US20190176939A1

公开(公告)日：2019-06-13

申请号：US16204447

申请日：2018-11-29

Applicant: Elta Systems Ltd.

Inventor： Feri TAYOURI ,  Gregory GEYSHIS

IPC: B63B35/44 ,  B63B39/02

CPC classification number: B63B35/44 ,  B63B1/107 ,  B63B21/50 ,  B63B22/02 ,  B63B39/02 ,  B63B39/06 ,  B63B39/08 ,  B63B2021/505 ,  B63B2035/442 ,  B63B2035/4426 ,  B63B2035/4466 ,  B63B2035/4473 ,  F03B13/1815 ,  F03B13/20 ,  F05B2240/40 ,  F05B2260/406

Abstract: A floating structure is described. The floating structure includes a floating platform disposed at a water surface, a mooring system and a dumping system. The mooring system is configured for mooring one side of the floating platform to a sea floor, thereby to permit rotation of the floating structure and to provide a desired orientation down-wind with respect to an anchor point. The dumping system is arranged at one side of the floating platform and is configured for absorbing wave energy and stresses imparted by the motion of waves in order to stabilize a horizontal position of the floating structure down-wind during a storm against the waves.