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Gera A.E.,ELTA Systems Ltd.
IEEE Transactions on Reliability | Year: 2010

The commonly known consecutive successes total failures (CSTF) start-up demonstration test procedure is improved to a total successes consecutive successes total failures (TSCSTF) procedure. Accordingly, a unit under test is accepted when either a total number of successful tests, or a specified number of consecutive successes of tests are observed before a total number of failures; otherwise the unit is rejected. The waiting time until termination (the length of the set of tests) of the new procedure is evaluated. A correct choice of parameters (e.g. the number of successes required for acceptance, the total number of failures causing rejection) using the new procedure may yield a shorter waiting time than that of the relevant CSTF procedure. © 2010 IEEE. Source


Gera A.E.,ELTA Systems Ltd.
IEEE Transactions on Reliability | Year: 2011

The commonly known consecutive successes total failures (CSTF) start-up demonstration test procedure is generalized to a total successes consecutive successes total failures consecutive failures (TSCSTFCF) procedure. Accordingly, a unit under test is accepted when either a total number of successful tests or a specified number of consecutive successes of tests are observed before both a total number of failures and any run of specified length of failures; otherwise the unit is rejected. The waiting time until termination (the length of the set of tests) of the general procedure is evaluated. A correct choice of parameters (e.g. the number of successes required for acceptance, or the length of a run of failures causing rejection) may yield a significantly shorter waiting time than that of the relevant CSTF procedure. Also, the new procedure is less sensitive to parameter changes, which is an obvious improvement in case the parameter values are miss-specified. We provide interval confidence bounds for the estimation of the reliability for the start-up demonstration test, which is based on maximum likelihood estimators. Then, we determine the minimum sample size needed in a demonstration test to achieve a certain precision of this reliability at a specified confidence level. © 2010 IEEE. Source


A mobile communication network system operative in conjunction with a core network including a core device and at least one static base station includes a plurality of base stations. The system further includes a population of mobile stations communicating via antennae with the base stations. The base stations include at least one moving base station which communicates via antennae with the mobile stations and includes base station functionality and a first radio manager and mobile station functionality all co-located with the base station functionality. The base station functionality has a physical back-connection to the first radio manager. The first radio manager has a physical connection with the mobile station functionality. The mobile station functionality communicates via antennae with at least one selectable static base station. The information used to determine whether to reject includes the location of the moving base station and statistics regarding measurements of link quality.


Patent
Elta Systems Ltd. | Date: 2015-11-19

According to the presently disclosed subject matter there is provided a wireless device system-architecture and a wireless device including a plurality of functional layers each of the functional layers comprising one or more respective layer elements where the plurality of functional layers being operatively connected and ordered as a cascade of functional layers for data-transfer from one layer to its one or more adjacent functional layers. The architecture further includes one or more matrix-switches, each matrix-switch operatively connected between each two functional layers in the cascade of functional layers. A matrix-switch controller is operable to determine at least two processing routes for data-transfer from at least one layer element in one functional layer, to at least one layer element in a second functional layer, wherein each of the at least two processing routes is associated with a different application processor layer element and wherein data is being transmitted via the at least two processing routes, in the same direction, substantially at the same time.


Patent
Elta Systems Ltd. | Date: 2015-05-07

An apparatus that includes two non-coinciding arrangements disposed in an two axes Cartesian coordinate system such that each arrangement having a non-zero projection on a respective axis from among the two axes. Each one of the arrangements includes a pair of oppositely directed, spaced apart, co-axial radiating-capable elements, each of the elements being hollow with internal space, and being slotted throughout its entire extent. A first circuitry coupled to the arrangement and being configured to sense an electric field projection along the axis and to convey it to a first feeding terminal. A second circuitry coupled to a slot of the arrangement and being configured to sense a magnetic fields projection along said axis and to convey it to a first feeding terminal.

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