Abstract: A mobile communication system including at least one individual mobile communicator in a population of mobile communicators served by a plurality of nodes, including at least one base station; wherein at least one individual mobile communicator is operative to at least once associating itself with a serving node from among the plurality of nodes using a serving node selection functionality operative for selecting the serving node so as to increase use of available bandwidth to and from at least one node which provides the individual communicator with an acceptable signal to noise ratio.

Abstract: In a mobile communication system including a network having at least one base station operative to receive information in resource allocation terminology understandable to the base station and to allocate downlink bandwidth accordingly, at least one relay operative to convey to the base station information regarding needs of mobile communicators associated with the relay, using the resource allocation terminology understandable to the base station, and when receiving uplink bandwidth, from the base station, which generates an uplink between itself and the base station, to distribute the uplink bandwidth between the mobile communicators associated with the relay.

Abstract: A method and system for performing complex sampling of signals by using two or more sampling channels and for calculating time delays between these channels.

Abstract: In a method and system for monitoring an underground cable in a site of interest, multiple samples of magnetic field data and corresponding location data are collected periodically over a sampling period of extended time. The magnetic field data samples and corresponding location data are processed to determine respective topologies of one or more current-carrying conductors in the site and for each of the conductors respective magnetic field data relating to each sampled point are integrated with respect to a predetermined parameter of the respective conductor so as compute an integrated contribution of each sampled span along the respective conductor. The data relating to different conductors in the site are output in a manner that allows determination of a conductor for which the parameter changes during the sampling period.

Abstract: An antenna element and a phased array antenna including a plurality of such antenna elements are described. The antenna element includes a waveguide configured for operating in a below-cutoff mode and having a cavity, an exciter configured for exciting the waveguide, and a shield. The shield includes a holder arranged within the cavity, and a front plate mounted on the holder and disposed over at least a part of the exciter.

Abstract: In accordance with an aspect of the invention, there is provided a thermal radiation marker (10) adapted to emit radiation within the thermal portion of the infrared spectrum. According to some embodiments of the invention, the thermal radiation marker may include an incandescent filament (16) and a glass or quartz enclosure (12). The incandescent filament may be adapted to produce radiation at least within the thermal portion of the infrared spectrum. The glass or quartz enclosure may include at least a portion that is substantially thin, and may enclose pressurized inert (14) gas and the incandescent filament surrounded by the inert gas. At least a portion of the glass or quartz enclosure may be sufficiently thin so as to enable good transmittance therethrough for tli3rmal radiation approximately in the 3-5&mgr,-m wavelength band.

Abstract: A system and methods for cancelling spatial interference associated with an original multi-carrier signal carrying at least one data transmission sent by a transmitter to an antenna array comprising a plurality of antennae and having a receiver operatively associated therewith, the system receiving a plurality of received signals respectively including interference and the original signal as received by a respective individual antenna from among the plurality of antennae, the system comprising a spatial nulling device for generating a cleaner signal by reducing at least one spatial component of the interference; and a signal manipulator operative to manipulate a derivative of the received signal so as to cause the at least one data transmission to be more concentrated in a subset of frequency bands in which the spatial nulling device is more effective and to be less concentrated in frequency bands which do not belong to the subset of frequency bands.

Abstract: A method for supplying bursts of substantially constant voltage to a switched load via a voltage reservoir. Based on a predetermined current that is to be sourced by the load during an active portion of a switching cycle, computing an average current that should be fed to the voltage reservoir during an inactive portion of the switching cycle to ensure that sufficient energy will stored in the voltage reservoir to supply the load without completely draining the voltage reservoir. Supplying continuous energy to the voltage reservoir at a substantially constant current equal in magnitude to said average current.

Abstract: A deployable antenna array is provided having at least one boresight axis, and including a first plurality of first antenna array elements and a second plurality of second antenna array elements separate from the first plurality of first antenna array elements, the antenna array being configured for being selectively deployable at least from a stowed configuration to a deployed configuration. A radar system including an antenna array, a telecommunication system including an antenna array, and a method for deploying an antenna array are also provided.

Abstract: 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 field's projection along said axis and to convey it to a first feeding terminal.

Abstract: A number of apparatuses are provided, for sensing and/or emitting energy along one or more desired apparatus line of sights (LOS) with respect to the respective apparatus. In an embodiment, an apparatus includes an assembly that is rotatably mounted on a base with respect to a switching axis. The assembly has two or more sensing/emitting units, each having a respective sensing/emitting unit line of sight (ULOS). Each sensing/emitting unit has an operative state, wherein the respective unit ULOS is pointed along a LOS of the apparatus for sensing and/or emitting energy along the LOS, and a corresponding inoperative state, where the respective unit ULOS is pointed along a direction different from this LOS. A switching mechanism enables switching between the sensing/emitting units to selectively bring a desired sensing/emitting unit exclusively into its respective operative state while concurrently bringing a remainder of the sensing/emitting units each to a respective non-operative state.

Abstract: The present invention provides a method for intercepting and monitoring of cellular satellite communication wherein communication between at least one mobile device (MES) and the satellite is through a first band link that includes plurality of first-band spot beams each accommodating at least one basic channel unit that includes a control channel and corresponding traffic channels, and communication between the satellite and main station is through wideband second-band link accommodating plurality of second band spot beams each accommodating at least one basic channel unit that includes a control channel and corresponding traffic channels, the method comprising detecting map between a control channel of the downlink first band link and corresponding control channel of downlink second band link by identifying identical unique spot beam number (SB Mask) data in the respective control channels.

Abstract: There are provided a method for computerized generation of an enhanced image based on a plurality of acquired images (e.g. SAR images) and system thereof.

Abstract: A mobile communication network system comprising a core network including a core device and at least one static base station; base stations; and Mobile stations communicating via antennae with the base stations; The base stations including at least one moving base station which communicates via antennae with the mobile stations and has a physical e.g.

Abstract: A controlled power supply comprising: a) an array of low voltage current sources; b) a plurality of switch power supplies coupled to each of the storage capacitors and respective ones of the pulse loads being coupled to each of the switch power supplies; c) each of the storage capacitors being configured for storing energy during an inactive portion of a load switching cycle of the respective switch power supply to which the corresponding storage capacitor is coupled when the pulse loads are inactive; d) a respective output capacitor in association with each of the switch power supplies for feeding voltage to the respective pulse loads during an active portion of the load switching cycle; and e) the respective storage capacitor being configured for supplying the stored energy via the respective to the respective switch power supply to which the storage capacitor is coupled to each of the pulse loads coupled to switch power supply during an active portion of the load switching cycle.

Abstract: A number of apparatuses are provided, for sensing and/or emitting energy along one or more desired apparatus line of sights (LOS) with respect to the respective apparatus. In at least one embodiment, the apparatus includes an assembly that is rotatably mounted on a base with respect to a switching axis. The assembly has two or more sensing/emitting units, each having a respective sensing/emitting unit line of sight (ULOS). Each sensing/emitting unit has an operative state, wherein the respective unit ULOS is pointed along a LOS of the apparatus for sensing and/or emitting energy along the LOS, and a corresponding inoperative state, where the respective unit ULOS is pointed along a direction different from this LOS. A switching mechanism enables switching between the sensing/emitting units to selectively bring a desired sensing/emitting unit exclusively into its respective operative state while concurrently bringing a remainder of the sensing/emitting units each to a respective non-operative state.

Abstract: A system and method for registering stereoscopic images comprising: obtaining at least two sets of stereoscopic images, each one of the at least two sets including at least two images that are taken from different angles, determining at least two groups of images, each one of the groups including at least two images that are respective images of at least two of the sets or are derived therefrom. For each one of the groups, calculating a respective optimal entities list and stereo-matching at least two images, each one being or derived from different one of the at least two groups and same or different sets, using at least four optimal entities from each one of the optimal entities list, thereby giving rise to at least one pair of registered stereoscopic images.

Abstract: An antenna element and a phased array antenna including a plurality of such antenna elements are described. The antenna element includes a waveguide configured for operating in a below-cutoff mode and having a cavity, an exciter configured for exciting the waveguide, and a shield. The shield includes a holder arranged within the cavity, and a front plate mounted on the holder and disposed over at least a part of the exciter.

Abstract: An active imaging system for imaging a target is described. The system includes a transmitting unit, a receiving unit, an antenna arrangement coupled to the transmitting unit and/or the receiving unit via a front end unit, and an image processing unit coupled to the receiving unit. The system also includes a control system coupled to the transmitting unit, the receiving unit and/or the image processing unit for controlling operation thereof. The antenna arrangement includes at least one rotating antenna synthetically forming a circular antenna. The image processing unit is configured for creating an image of the object by employing a synthetic aperture radar imaging algorithm.

Abstract: A method and system for performing complex sampling of signals by using two or more sampling channels and for calculating time delays between these channels.