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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 (J A ; J B ) may be emitted towards threats (X 1 , X 2 ) from counter measures stations in...
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 the...
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...
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 from...
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...
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...
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...
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 program...
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 of...
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 computer-controlled...
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 signal...
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...
5291201 Microwave integrated circuit frequency translating apparatus  
A microwave integrated circuit for frequency translation includes a pair of mixers for receiving the input RF signal, mixing it with a pair of quadrature frequency modulation signals and by...
5287110 Complementary threat sensor data fusion method and apparatus  
A complementary threat sensor data fusion capability for an aircraft survivability equipment system. A set of aircraft survivability sensors provides a threat sensor data fusion control process...
5181036 False return signal apparatus  
An optical acoustic charge transport (ACT) device provides a variable and continuous delay for RF signals. Received RF signals are converted to light and focused onto an optical ACT device. The...
5157401 Jog detector  
A shipborne Electric Countermeasures (ECM) system protects ships against an pproaching missile by transmitting electromagnetic jamming signals directly at the missile's radar in order to disturb...
5153594 Electronic counter-measure system for aircraft  
An electronic counter-measure system for installation on an aircraft is disclosed. The system includes an interferometer transmitter comprised of a plurality of repeater amplifier circuits...
5111206 Velocity deception apparatus  
A velocity deception apparatus utilizes a serrodynable digital phase shifter of the Schiffman type where each cell of the phase shifter is driven by an output of a multi-bit counter whose clock...
5107267 Coherent sampling repeater  
A sampling repeater includes a transmit/receive switch for inputting a received RF signal to a delay line. The delayed signal is then scrambled and fed to the transmit/receive switch, which changes...
5047774 Radio frequency transmission and reception system  
A radio frequency transmission and reception system, for use as an active decoy, includes a receiver 10, a transmitter 12 and a signal generator 20 for providing wideband noise signals for...
5036323 Active radar stealth device  
An active radar stealth device mounted on a host platform for minimizing radar cross-section of the host platform. A coating which is essentially microwave transparent is attached to the surface of...
5032839 Self-equalizing coherent optical RF memory  
A coherent optical RF memory has an input circuit for receiving RF input signals having wideband frequency content. An electronically tuned frequency selector selects from the RF input at least one...
5003312 Velocity deception apparatus and method therefor  
The velocity deception apparatus utilizes a serrodyne technique to produce various deception jamming modes. The modes are all controllable by parameters which are digitally stored and in addition,...
4990920 Electronic countermeasure system  
A radar jamming system comprises a target vehicle and a slave vehicle. A master thread radar detection system is provided in the target vehicle and a slave transmitter system in the slave vehicle...
4980688 Regenerator  
A radar countermeasure comprising an inflatable balloon, a corner reflector ounted inside said balloon, and means mounted on top of said balloon for destroying said balloon upon the incidence of a...
4955013 Operating a multiple-access optical network  
A method of operating a multiple-access network. The network has a number of communication stations having receiving and transmitting portions (1, 2: 3, 4: 5, 6). The stations are physically...
Matches 1 - 50 out of 124 1 2 3 >