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Match Document Document Title
8897698 Data transfer method, data transmission apparatus, and communication system in multi-hop relay system  
The invention relates to a data transfer method in a multi-hop relay system. The data transfer method comprises: a step for allowing a base station to receive from a first terminal the channel...
8798526 Method and apparatus for selecting and processing signals from a source station and relay stations  
Techniques for selecting and processing signals from different stations in a wireless network are described. A destination station may receive a direct signal from a source station and at least...
8588795 Scheduling apparatus and method in a distributed antenna system  
A scheduling method in a distributed antenna system is provided. Each of a plurality of Mobile Stations (MSs), respectively corresponding to each subchannel, are classified as a Single...
8325080 Radio frequency particles  
Particle circuits for disrupting signals associated with a communication system or for marking a position of a device are provided. In one embodiment, the invention relates to a composite for...
8258998 Device, system and method of protecting aircrafts against incoming threats  
Device, system and method of protecting aircrafts against incoming threats. For example, a system for protecting an aircraft against an incoming threat includes: one or more electro-optic sensors...
8224234 Method and apparatus for generation of radio frequency jamming signals  
A system for generation of jamming signals and related and techniques are described.
8195089 Apparatus and method for cooperative transmission in multi-antenna relay wireless communication system  
An apparatus and method for cooperative transmission in a multi-antenna relay wireless communication system are provided. A receiving end includes an estimator, a reader, a feedback unit and a...
8170135 Methods and apparatus for emitter detection  
A method is provided for coordinating detection of emitted signals by a receiver with transmission of signals by a transmitter, wherein the receiver and the transmitter are located on the same...
8115665 Method and system for extending operational electronic range of a vehicle  
A method and system for extending the electronic operational range of a slow vehicle, such as a ship, by using a remotely controlled unmanned faster vehicle, such as an Unmanned Aerial Vehicle...
7982654 Smart signal jammer  
A smart signal jammer is disclosed that receives a description of an unwanted signal or signals to be jammed, and transmits one or more jamming signals in one or more temporal transmission...
7982655 Aircraft decoy arrangement  
Aircraft decoy arrangement and method for generating a decoy signal from an aircraft having an isolated decoy. An aircraft receiver detects a threat signal from a threat source targeting the...
7965221 Selective disruptor for voice modulated communications  
A method and system for selectively disrupting voice modulated radio communications circuits wherein the original communication is recorded, delayed for a selected period then synchronized with a...
7728755 Reactive parallel processing jamming system  
The system is a parallel processing jamming architecture that is designed to automatically attack and concurrently investigate multiple signals simultaneously in the radio environment. The system...
7719457 Digitally tuned digital radio frequency memory  
A digitally tuned digital radio frequency memory that captures a portion of a first radio frequency signal and retransmits the portion as a coherent radio frequency signal. The digitally tuned...
7504982 Anti-Missile system and method  
The disclosed system, device and method for an anti-missile system generally includes a ground-based sensor array generating tracking data of a guided missile tracking a target. A control node in...
7425916 Airborne distributed pulse doppler radar missile warning system  
A digital missile warning system comprising a distributed pulse doppler radar having a plurality of antennas, each being coupled to a transmit/receive (T/R) module located adjacent to the antenna,...
7391355 Single platform geolocation method and apparatus  
A geolocation system and method uses a single platform for determining a Doppler measurement set of a targeted aircraft or signal of interest. The electronic warfare aircraft and the ejected...
7339515 Optimized utilization of electronic counter measures  
The invention relates to a distributed electronic counter measures solution, wherein jamming signals (JA; JB) may be emitted towards threats (X1, X2) from counter measures stations in multiple...
7248203 System and method for detecting and jamming emitter signals  
A system and method is provided for detecting emitter signals and for determining a scan strategy for a receiver system that receives such emitter signals. In one embodiment, the scan strategy may...
7212148 Apparatus for jamming infrared attack unit using a modulated radio frequency carrier  
A countermeasure system for jamming an attack unit is provided. The attack unit receives an infrared carrier signal for detection of a target under attack and is vulnerable to countermeasures from...
7154431 Signal synthesizer and method therefor  
A digital synthesizer includes a digital radio frequency memory (DRFM) for storing phase values and corresponding digital signals. The digital synthesizer includes a digital processing circuit...
7142148 Towed decoy and method of improving the same  
A towed decoy arrangement for a craft with a decoy towed by the craft. Threatening signals are received by the craft and a noise signal is generated which is converted up to a frequency which is...
7081846 ECM techniques to counter pulse compression radar  
A system and method for generating a counter-measure signal in response to an incoming radar signal from a remote linear frequency modulated (LFM) pulse compression radar system. One method...
7023374 Method and apparatus for signal detection and jamming  
Apparatus and method for multi-band, multi-frequency signal detection and transmission, comprising a multi-band wideband antenna, a receiver based on a plurality of synthesized down-converters and...
7006039 Microwave self-phasing antenna arrays for secure data transmission & satellite network crosslinks  
A high-directivity transponder system uses a dual system of a retrodirective array transmitting a data signal peak toward an interrogator source, and a self-null-steering array transmitting a null...
6885333 Cross-eye technique implementation  
An electronic warfare (EW) cross-eye system comprises two antennas separated a distance, d, a part, where d is much greater than the wavelength, λ, of a tracking signal emitted by a fire control...
6697008 Distributed electronic warfare system  
A distributed electronic warfare system includes a central control site for controlling and receiving data from the system and utilizes a satellite communications system for communications within...
6492931 Electronic countermeasures system and method  
An electronic countermeasures system wherein part of the system is contained within the aircraft to be protected and part in an expendable decoy. Signals from enemy radars are received on-board...
6476755 Communications jamming receiver  
An improved communications jamming receiver is disclosed wherein time division multiplexing techniques are utilized that permit monitoring enemy radio frequency transmissions while in essence...
6456225 Reflector circuit  
A reflector circuit is provided which responds to illuminating radiation with corresponding output radiation of increased magnitude relative to the illuminating radiation, while also providing a...
6429800 Expendable jammer  
An expendable jammer is ejected as a decoy from a target in which the jammer includes a single port, keyed primed oscillator which is primed with the low level signal received at its antenna. The...
6424286 In-seeker jamming device  
In-Seeker Jamming Device, suitable for an RF missile, utilizes the high-gain antenna and amplifier that are already a part of the missile. During the “blind range” between the termination of the...
6396432 Method and apparatus for the deception of satellite navigation  
A method and apparatus for altering the coordinates obtained by satellite navigation in a receiving system which fixes an incorrect position, instead of a true position, within a given...
6384765 Repeater jamming transmitter and casing for the same  
This invention concerns a repeater jamming transmitter (2), and a casing arrangement with repeater jamming transmitter. The repeater jamming transmitter (2) comprises transmitter antenna (7),...
6252537 Air-to-air guidance system and method of operating same  
(U) A system for protecting a strategic bomber approaching the field covered by an airborne surveillance radar is shown to include: A search receiver arrangement to detect interrogating pulses...
5943001 Swept comb method of jamming  
An improved countermeasure technique for providing jamming signals against obing radar, especially COSRO (conical scan on receive only) radar. A power spectrum (or comb) is generated having...
5786786 Photonic radar decoy  
A photonic radar decoy (50) is provided which simulates an aircraft to a radar having an interrogating signal. A plurality of receiving antenna (52, 54, 56, 58, 60) are attached to the decoy (50)...
5588057 Apparatus for defeating radar speed detection signals  
Acquisition and interpretation of reflections from a target in response to a Doppler radar probe signal from a seeker are inhibited by providing at the target a receiver, preferably a high-speed...
5583504 Method and system of producing phase front distortion  
A method and system of producing phase front distortion wherein a pair of peaters of electromagnetic waves are utilized in this system. The function of each repeater is to receive a signal from a...
5583509 Communications electronic warfare trainer  
A communications electronic warfare trainer that includes apparatus and a thod by which a training umpire can control the localized jamming of a victim communications system. A control signal...
5537120 Main lobe shifting means  
Improved performance in electronic countermeasure systems that utilize main lobe shifting techniques to jam track while scan threat radars are achieved through the use of a modulation sweep...
5530451 Repeater with low spurious time outputs  
A device which increases the rate of reduction of spurious output signals includes a path capable of carrying a signal from an input to an output. A plurality of storage elements and a plurality...
5519399 Method for measuring the frequency of continuous wave and wide pulse RF signals  
A method for measuring the frequency of continuous wave and wide pulse RF signals using multi-purpose, commercial-off-the-shelf test devices, such as an RF signal down converter, a digitizer and a...
5506582 Signal processing apparatus  
A signal processing system is disclosed in which detected signals received from an antenna are mixed with computer-controlled first local oscillator signals, delayed, mixed with...
5463396 ECM for long-range radars  
An electronic countermeasure system carried aboard a target that creates se targets in front of and/or behind the target. The radar's transmitted signal is repeated back to the radar with a...
5457460 Embedded threat data recorder  
Aircraft survivability embedded data recorder for threat data. The embedded threat data recorder stores active threat data generated by aircraft survivability equipment sensors. Threat data from a...
5426433 Coherent RF pulse multiplier  
A radio frequency pulse multiplier for producing coherent multiples of radio frequency (rf) pulses comprising an input terminal for receiving rf pulses, a signal divider for providing a plurality...
5406286 Real time passive threat positioning system  
A data correlated real time passive threat positioning system uses parallel estimated navigation filters. A threat data correlation process accepts radar warning receiver track file data and...
5373297 Microwave repeater with broadband active and/or passive isolation control  
A microwave repeater with antenna isolation comprises a first receiving anna for receiving an input signal from a distant source; an amplifier section for amplifying and modulating the input...
5321405 Radio frequency energy jamming system  
A transmitter/receiver system is provided wherein a transmitter of such system produces a transmitted signal frequency modulated in accordance with the level of a modulating signal and a receiving...

Matches 1 - 50 out of 138 1 2 3 >