Abstract: A ballistic armor panel for attaching to an object, the panel comprising a carrying board made of a hard material and formed with a plurality of adjoining through-going apertures, each aperture receiving a body made of a hard material and having a longitudinal axis coaxial with an axis of the respective aperture.

Abstract: A breaching device for controlled blasting of an object at short range includes a blasting element including an explosive charge contained within a housing, the blasting element being configured to blast the object from a preset distance. Connected to, and extending from, the housing is a stand-off rod having a length equal to the preset distance. A pyrotechnic lead pellet is associated with the blasting element and with the stand-off rod so as to detonate the explosive charge upon impact of the stand-off rod with the object. A tail is provided for stabilizing the device during its flight to the object. The tail is connected to the blasting element through a “safe and arm” device and a safety connector configured to reduce shock forces acting on the tail resulting from detonation of the explosive charge.

Abstract: An armor assembly for protecting a body disposed behind said armor assembly, wherein the armor assembly comprises at least one layer of material made of an essentially brittle material, said layer extending slanted relative the expected trajectory of an oncoming firearm projectile.

Abstract: A method for boresighting of a designation system, including a tracker responsive to a detector with reference to an indicator, including the step of directing a beam of light at a target, using a light source, so that the beam of light is reflected from a spot on the target while a temperature of the spot remains substantially constant. The method further includes focusing at least part of the reflected light as an image on the detector and determining a misalignment of the indicator and the image.

Abstract: A device (10) for purifying a gas stream (30) made up of a plurality of DBD cells (12a, 12b, 12c) in series and, for each of the DBD cells (12a, 12b, 12c), a power supply (24a, 24b, 24e) for providing alternating current to each DBD cell (12a, 12b, 12e).

Abstract: In a weapons system of the type in which a round having a case is fired from a gun, the round including a fuze processor, the round further made up of a firing circuit having a resistor and also having two contacts in the case of the round, the gun having two contacts which contact the two contacts of the round when the round is in the gun and ready to fire, the gun being fired by applying a voltage in excess of a certain threshold to the contacts of the round via the contacts of the gun, the weapons system including a fire control system outside the gun.

Abstract: A method for assigning a target within a cluster of targets to a specific one of a plurality N of weapons launched from M airplanes is provided. The method includes providing the specific weapon with an index (m,n) based on the weapon bay n and the airplane m from which it is to be launched, receiving the central location and determining the shape of the cluster; dividing the cluster shape into N sub-clusters wherein each sub-cluster n has M sectors m, determining the center of gravity of each sector; associating the specific weapon with the sector having index (m,n); and assigning a target from among the targets in the associated sector to the specific weapon.

Abstract: A method is provided for the direction of arrival (DOA) tracking of at least one source, along a single azimuth axis or along both azimuth and elevation axes. The method includes the steps of selecting all the high peaks from a DOA function as potential track points, converting the potential track points into a plurality of tracks and selecting a true track from the plurality of tracks.

Abstract: An adhesive binder for optical fiber packages is described which comprises a silicone-epoxy IPN (Interpenetrating Polymer Network), with the epoxy cured to give reinforcing domains within the cured silicone. The adhesive binder is prepared by cross-linking and polymerizing a silicone polymer and an epoxy resin, with a cross-linking agent and a catalyst for curing the epoxy and silicone, optionally with the addition of a silane wetting agent, such as methacryloxypropyl trimethoxysilane. In preparing a wound optical fiber package, the adhesive binder is applied in solution to the fiber, during its winding, by passing the fiber through the solution or by brushing the solution on each layer when its winding is completed.

Abstract: Pressure control device, characterized in that it comprises, in combination with valve means having an open and a closed position and urged to said closed position by a pressure thrust, elastic means opposing the closure of said valve means by exerting thereon an elastic counterthrust opposed to said pressure thrust, said means being normally in a condition of normal strain or stress wherein it creates a first level of elastic counterthrust such as to be overcome by said pressure thrust when it exceeds a first predetermined level; and means for bringing said elastic means to at least another condition of strain or stress, wherein it creates a second level of elastic counterthrust such as to be overcome by said pressure thrust when it exceeds a second predetermined level.

Abstract: An interceptor fitted with a target tracker unit, that includes passive infrared tracker capable of sensing infrared radiation (IR) emitted from a flying target and being responsive to the sensed IR radiation, for generating a succession of Line of Sight (LOS) and/or LOS rates signals that are stored in a database. Self state means capable of providing a succession of interceptor's self state data. Electro-magnetic range finder that includes a transmitter assembly for transmitting pulsed radiations and receiver assembly for receiving reflections that surpasses adjustable detection threshold. The electro-magnetic finder is configured to operate at first detection threshold for receiving reflections of relatively low magnitude, and storing the reflections in the database. A target reflection detection module communicating with the database, for detecting target reflections from among those stored in the reflection database.

Abstract: An adaptive speed restriction device is disclosed for use on roads against peeding vehicles. The device comprises an elongated hollow element having a preselected length defining a cavity, an impervious and elastic casing having at least one upper surface presenting a hump; at least one air outlet vent that allows for flow of air from inside the casing outwards to the open atmosphere when external pressure is exerted on the upper surface, the upper surface collapsible into a flat surface as air flows out of the cavity; and an air inlet vent that allows flow of air outside of the casing into the cavity when the external pressure is not exerted on the upper surface. When a vehicle passes over the hump, pressure is exerted on the upper surface which expels air outside through the air outlet vent. The maximum flow rate of air exiting the cavity is adaptive to the speed of the vehicle passing over the device. The air outlet vent can be adjusted to allow the device to accommodate various allowed vehicle speeds.

Abstract: A penetration warhead of a positively position-controlled roll-stabilized missile. The warhead has a main axis and includes a nose section which is asymmetric with respect to the main axis of the warhead, the asymmetry is selected such that upon impacting a target the forces acting on the nose section create a moment about the warhead's center of gravity which directs the penetration warhead in a direction which is substantially toward the perpendicular, thereby increasing the warhead's penetration depth.

Abstract: An airbag protection system for helicopters. Airbags are inflated either automatically or manually, or a combination of both, prior to the helicopter striking the ground, thus avoiding or ameliorating a crash. Proximity sensors detect a fast descent to trigger inflation of the airbags located beneath the helicopter fuselage so that they can cushion the impact with the ground. Venting of the gas from the airbags is also provided to release the gas from the airbags so as to prevent rebound of the helicopter from the ground.

Abstract: A system and method for detecting an intruder into an area to be guarded is provided. The system includes a plurality of detection units, each of the plurality of detection units having at least one infrared sensor and having a first field of view external to and directed generally along the perimeter, and located within the area to be guarded. The infrared sensor may be a passive sensor. The detection units include a camera for recording intrusion within a second field of view and a controller. The controller is responsive to output of the infrared sensor, for determining when an intruder has entered the first field of view, whereupon an operator activates the camera.

Abstract: A method for determining the initial conditions for an inertial measurement nit (IMU) of a second vehicle launched from a wing of a first vehicle is provided. The method includes the steps of defining a state vector x as including (a) the rotation .zeta. of the computed coordinate axes with respect to the real coordinate axes of the second vehicle and (b) the projection .delta..alpha. along the Z axis of the first vehicle of the rotation of the second vehicle from its nominal coordinate axes to its real coordinate axes. A measurement z is defined as the projection .delta..beta. of a rotation angle .beta., along the Z axis of the first vehicle, between the nominal coordinate axes and a current computed coordinate axes. The method also includes the steps of estimating x over time with a Kalman filter, wherein the projection .delta..beta. is the measurement vector and the state vector x changes only due to random noise and processing x to produce the attitude about the Z axis of the first vehicle.

Abstract: A frequency-shift-keyed PLL frequency synthesizer with large frequency-muplication factor, with absolute frequency deviation independent of frequency-multiplication factor. The PLL also has fractional frequency-multiplication-factor programming capability. The PLL is inexpensive to implement, and potentially capable of fast frequency changing, due to lack of need to compensate modulator frequency deviation with possible resulting stabilization-time requirements, associated with each PLL output-frequency change. The PLL frequency synthesizer preferably employs a PLL-DRO and subharmonic mixer to achieve stable, low-noise microwave output frequencies.

Abstract: Method and apparatus for optimally decoding messages from CDMA signal sent by a plurality of users and received asynchronously at one receiver, using a minimal number of computations and minimal memory and processing resources. It is based on a novel approach to signal correlation, as well as to subsequent decoding by decorrelation, that requires a correlation period of only one symbol length, by providing for each user a pair of partial signatures sequences, with which the signal is correlated, deccorelating the results with the inverse of the cross-correlation matrix of all partial sequences, and combining the resultant partial symbol estimates--to obtain final estimated symbol values. The partial sequences are formed by separating each original sequence at a point corresponding to the estimated symbol boundary time, relative to an arbitrary correlation window, of one symbol length.

Abstract: A method for creating a surface having a fast changing temperature, comprises providing a heat exchanger coupled to an orifice opening into a jacket which is in contact with the surface to be heated and cooled, the jacket forming a reservoir capable of housing a fluid in contact with the surface to be heated and cooled, and providing two gas sources, each gas source being independently connected to the said heat exchanger, one source providing a first gas, which liquefies when it expands through the orifice, and the other gas source providing a second gas, having an inversion temperature lower than the temperature obtained by the liquefaction of the first gas, and causing the exhaust gas flowing out from the jacket, to flow through the said heat-exchanger to preheat or precool the inflowing gas, as the case may be, and further causing the said first and the second gas alternately to flow through the said heat exchanger and orifice, to cool or to heat the surface; means being provided for allowing and stopping

Abstract: A control system for controlling an airborne vehicle at a time of low aerodynamic moment is provided. The control system includes combined aerodynamic and thrust vector control actuators, a quaternion generator which determines a quaternion error value defining the error between the quaternion of the vehicle and the commanded quaternion; and a controller which controls the actuators based on the quaternion error value, an aerodynamic control gain and a thrust vector control gain.