公开(公告)号：US20160349057A1

公开(公告)日：2016-12-01

申请号：US15234307

申请日：2016-08-11

Applicant: Elbit Systems Ltd.

Inventor： Ari ABRAMSON LIANI ,  Ilan EFRAT ,  Ilya LEZERSON

IPC: G01C21/16 ,  G01C21/20 ,  G01C21/00

CPC classification number: G01C21/206 ,  G01C21/12 ,  G01C21/20 ,  G01C25/005

Abstract: A method of pedestrian navigation based on an external positioning system and a Dead Reckoning (DR) system, us provided. The method includes: obtaining DR position readings from a plurality of pedestrian-carried platforms and external position readings from a remote source which is independent of the pedestrian-carried platforms, wherein the obtaining is repeated for a plurality of locations associated with the plurality of pedestrian-carried platforms; estimating, for each of the plurality of locations, an external positioning source error, based at least partially on the external position readings and the DR position readings; applying an estimation function to the external position readings, the DR position readings, and the external positioning source error, for the plurality of locations, to yield a corrected estimated position for each of the plurality of locations; and presenting the corrected estimated position for each of the plurality of locations to users of the pedestrian-carried platforms, respectively.

Abstract translation: 我们提供了一种基于外部定位系统和航位推算（DR）系统的行人导航方法。 该方法包括：从多个步行者携带的平台获得DR位置读数和来自独立于步行者携带平台的远程源的外部位置读数，其中针对与多个步行者相关联的多个位置重复获得 - 平台; 至少部分地基于外部位置读数和DR位置读数来估计多个位置中的每一个的外部定位源错误; 对所述多个位置对所述外部位置读数，所述DR位置读数和所述外部定位源误差应用估计函数，以产生所述多个位置中的每一个的校正估计位置; 并且分别向行人携带平台的用户呈现针对多个位置中的每一个的修正后的估计位置。

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。