公开(公告)号：US20230003757A1

公开(公告)日：2023-01-05

申请号：US17942697

申请日：2022-09-12

Applicant: ELBIT SYSTEMS LTD.

Inventor： Evgeni GUROVICH ,  Yoav OPHIR

IPC: G01P3/68 ,  G01S11/12

Abstract: Systems and methods for determining a relative motion between two or more objects are disclosed. The system may include an excitation unit adapted to be disposed on a first object and configured to excite and to induce at least one change in at least a portion of a second object. The system may include a sensing unit adapted to be disposed on the first object, the sensing unit may include at least one sensor configured to detect the at least one change in the second object at two or more different time instances and to generate corresponding two or more sensor output datasets. The system may include a processing unit configured to determine a relative motion between the first object and the second object based on the two or more sensor output datasets thereof.

公开(公告)号：US20230003550A1

公开(公告)日：2023-01-05

申请号：US17942498

申请日：2022-09-12

Applicant: Elbit Systems Ltd.

Inventor： Evgeni GUROVICH ,  Yoav OPHIR

IPC: G01D5/14

Abstract: A method of determining a configuration of a measurement volume, the method may include: generating, by at least one transmitter, a transmitted magnetic field within the measurement volume; measuring, by at least one receiver positioned, a total magnetic field in the measurement volume at at least one receiver position and generating at least one receiver output signal; generating, by a processing unit, a measured dataset; comparing, by the processing unit, the measured dataset with at least one of at least two reference configuration datasets each for determined for one of at least two different configurations of the measurement volume; and identifying, by the processing unit, a reference configuration dataset of the at least two reference configuration datasets that corresponds to the measured dataset.

公开(公告)号：US20140222409A1

公开(公告)日：2014-08-07

申请号：US14249463

申请日：2014-04-10

Applicant: ELBIT SYSTEMS LTD.

Inventor： Ilan EFRAT ,  Evgeni GUROVICH ,  Guy MENCEL

IPC: G06F17/50

CPC classification number: G06F17/5009 ,  G01R33/072 ,  G01R33/10

Abstract: A system for mapping a magnetic-field in a volume-of-interest comprising a magnetic-field transmitter, generating a magnetic-field in the volume-of-interest, a freestanding magnetic-field detector operative to freely move within the volume-of-interest, a pose-information-acquisition-module and a processor. The detector acquires measurements of flux of the magnetic-field at a plurality of poses. The pose-information-acquisition-module measures information related to the pose of the detector. The processor determines pose-related-information respective of at least a portion of the measurements according to the information related to the pose of the detector. The processor estimates the entire set of parameters of a magnetic-field model template according to the magnetic-field flux measurement and the respective poses-related-information thereof. The processor incorporates the entire set of parameters into the magnetic-field model template, thereby determining the magnetic-field model. The entire set of parameters includes the coefficients, the order the number and location of the centers of expansion of the magnetic-field model.

Abstract translation: 一种用于映射感兴趣体积中的磁场的系统，包括：磁场发射器，在感兴趣体积中产生磁场;独立式磁场检测器，可操作以在该体积范围内自由移动; 兴趣，姿势信息获取模块和处理器。 检测器获取多个姿态的磁场通量的测量。 姿势信息获取模块测量与检测器的姿势有关的信息。 处理器根据与检测器的姿势相关的信息，分别对至少一部分测量结果确定姿势相关信息。 处理器根据磁场通量测量及其各自的姿势相关信息来估计磁场模型模板的整个参数集合。 处理器将整个参数集合到磁场模型模板中，从而确定磁场模型。 整个参数组包括系数，磁场模型扩展中心的数量和位置的顺序。