Matches 101 - 150 out of 207 < 1 2 3 4 5 >
Match Document Document Title
5703314 Infrared projector countermeasure system  
A countermeasure system, adapted for use on board an aircraft, for confus an incoming missile as to the location and heading of the aircraft. The countermeasure system generates for each side of...
5673049 Police radar jammer  
A method to confuse a police radar by moving a multiplicity of radar reflector antennas in the field of view of the radar. The moving radar reflector antennas present continuously changing doppler...
5661491 Method and means for reducing interferences in radio receivers  
A method of reducing the effects of interference on a radio receiver having access to multiple transmission sources including the steps of monitoring the signals received from all available...
RE35553 Optical RF stereo  
An optical RF stereo systems includes multiple remote vehicles, a processing center, and optical RF link systems for transmitting RF signals from remote vehicles to the processing center and for...
5623266 Contiguous subcarrier barrage jamming method and apparatus  
A method and apparatus for providing a radar jamming signal by simultaneously frequency-modulating a voltage-tunable oscillator with a large-amplitude, periodic, sawtooth waveform and a...
5608403 Modulated radiation pulse concept for impairing electrical circuitry  
An electron beam is generated in a packetized form defined by pulses having a duty cycle of less than 1:1000. Each pulse may have a width of approximately one microsecond (1 μsec.) and may be...
5574458 Automatic RF countermeasures dispensing module controller  
Automatic countermeasures dispensing module controller for radio frequency countermeasures processes information generated by a missile approach detector and radio frequency receivers which is...
5561429 Content limit addressable memory  
A content limit addressable memory (CLAM) having a plurality of lower and upper limits stored therein for comparison to corresponding subfields of an input word. Each corresponding upper and lower...
5532696 Pseudo random jammer with false target scintillation capability  
A pseudo random FM noise jammer that produces scintillation of false targets. A rate and amplitude controlled pseudo random sequence generator is fed to a low pass filter which is resistively...
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...
5469166 Method to generate a continuous periodic signal from a short sample of the signal  
This invention provides a means of providing a continuous signal which corresponds in phase and frequency to a brief instruction signal. The instruction signal is analyzed and the average frequency...
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...
5461571 Complementary thread display method and apparatus  
A complementary threat display where threat data provided by a pulsed radar jammer and a continuous wave radar jammer are correlated with the threat data provided by a radar warning receiver. The...
5453746 Assembly including a jettisonable device with a travelling-wave tube  
A jettisonable means comprises means with a travelling-wave tube for emitting electromagnetic waves. It forms part of an assembly having external power supply means for supplying the filament of...
5378155 Combat training system and method including jamming  
A combat training system which includes individual processing pods on each aircraft or combat platform. The pods use signals from GPS satellites to determine the position of the respective...
5345239 High speed serrodyne digital frequency translator  
A high-speed serrodyne digital frequency translator utilizes a digital phase-shifter, for example, of series coupled Schiffman type cells, which have reference and delay paths which are switched by...
5313209 Sweep jammer identification process  
A process for accurately predicting the effects of a sweep jammer signal, ose waveform is given, on a targeted radio receiver communication link whose signaling curve is known. The process analyzes...
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...
5200753 Monopulse radar jammer using millimeter wave techniques  
A first extended interactive amplifier operates at a fixed frequency while a second such amplifier sweeps across a frequency range. The respective extended interactive amplifiers produce individual...
5192827 Microwave projectile  
A high power microwave/radio frequency radiating projectile that stores electrical energy in a Pulse Forming Line network. Electrical energy is converted to high power microwave/radio frequency...
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...
5099243 Digital frequency measurement receiver with bandwidth improvement through multiple sampling of complex signals  
This is a technique for extending the frequency range which employs in-phase and quadrature components of the signal coupled with non-uniform sampling to gain the advantages of a high sampling rate...
5099194 Digital frequency measurement receiver with bandwidth improvement through multiple sampling of real signals  
This proposed approach to extending the frequency range uses non-uniform sampling to gain the advantages of a high sampling rate with only a modest increase in the number of samples. The basic idea...
5063385 Radar warning receiver compressed memory histogrammer  
A memory system for histogramming the pulse descriptor word output of a radar warning receiver for initial processing of the received data for quickly determining the numbers and types of emitters...
5045857 High-speed beam switching processor  
A beam switching processor operable to detect a microwave amplitude distrtion associated with an array of receiving antenna ports and to close a single-pole, multiple-throw microwave switch to that...
5018685 Data link and return link  
This invention relates to a data coder, code searching mechanism, data deer, and range computer for a missile wherein the missile receiver is able to discriminate between the real signals and...
5001771 Communications jammer  
A jammer includes means for receiving a local radio transmission and means for determining the frequency of the local radio transmission. Monitoring circuits are arranged to detect the end of the...
4990919 Missile decoy system  
A radar system, including a pulse radar capable of emitting interrogating pulses and high rate antiradition missile decoys, is shown to comprise a plurality of decoys adapted to emit pulses having...
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...
4970516 Seagoing vessels  
A sacrificial seagoing vessel comprises an automatic navigation system which is operable remotely to maintain the sacrificial vessel in a predetermined orientation and position with respect to a...
4959559 Electromagnetic or other directed energy pulse launcher  
The physical realization of new solutions of wave propagation equations, such as Maxwell's equations and the scaler wave equation, produces localized pulses of wave energy such as electromagnetic...
4933677 Spur reduction system for digital RF memory  
A coherent radio frequency memory (CRFM) which employs a digital RF memory (DRFM) and a power limiter at its input for limiting the power of the RF input to a relatively constant level over a broad...
4891646 Modulated single channel digital radio frequency memory (DRFM)  
A modulated single channel (as opposed to a quadrature channel) digital radio frequency memory (DRFM) system retrievably stores incoming radio frequency (RF) signals in a digital memory and...
4890109 Lightweight, broadband, pulsed, frequency agile, self-screening jammer for airborne deployment  
A broadband RF microwave source is used to generate a high-energy, narrow lse which is used to provide the illuminating signal for an active radar system while simultaneously jamming other active...
4885587 Multibit decorrelated spur digital radio frequency memory  
A decorrelated spur digital radio frequency memory (DRFM) system stores incoming radio frequency (RF) signals in a digital memory and at some later time replicates these RF signals at the output....
4876545 Adaptive blanking interface apparatus for self-protection jamming equipment employed in conjunction with radar systems  
There is disclosed an interface apparatus which enables a radar jamming system to operate in conjunction with a number of different radar warning receivers. The interface enables the jamming...
4816832 Continuous repeater target dental device  
A circuit is described which receives enemy radar signals in the form of encoded bursts or pulses, and which immediately generates and transmits, in sequence, a large number of target denial...
4763128 Electronic countermeasure technique  
Electronic countermeasure technique for protecting low-flying aircraft from radiant energy guided missiles by bouncing a decoy guidance signal off the ground near the aircraft.
H000513 ECM preprocessor or tracker using multi-processor modules  
The tracking apparatus uses multi-processor modules for predicting in real time the parametric behaviour of radar signals to be jammed, as part of an electronic countermeasures system. The tracker...
4761813 Military radar or radio communication system  
A military radar or radio communication system comprises, in particular, mobile transmitter-receiver apparatus wherein a plurality of operating frequencies are constantly changed in accordance with...
4743904 Military countermeasures passive signature cancellation system  
A radiometric countermeasures system installable on a military tank to det a passive millimeter wave sensor in a guidance system on an enemy missile. The system comprises an oscillator source of mm...
4743905 Electronic counter measure system utilizing a digital RF memory  
An active radar jamming system using a digital radio frequency memory (DRFM) as the central subsystem in the generation and detection of specific signal characteristics. Associated systems control...
4737771 Security system with interference detection  
A security system having one or more sending units for transmitting an electromagnetic signal representative of a condition such as fire, smoke, intrusion, battery condition, an emergency or other...
H000433 Electronic warfare software system design an integrated approach  
An electronic warfare software system design for an electronic counter measures system is presented which includes two general purpose processors (GPP) and multiple special purpose processors...
4719649 Autoregressive peek-through comjammer and method  
Disclosed and claimed in a communications system which permits the simultaneous reception and jamming of a transmitted radio frequency signal. This is accomplished by sampling the signal for a...
4697157 Inherently flat spectral density pseudorandom noise generator  
A pseudorandom noise generator (10) is disclosed which includes a maximum length sequence generator (13) for providing a digital signal having a pseudorandom sequence, modulating circuitry (17,20,...
4689622 Provisions for the suppression of mutual jammer interference in a flying body  
Antenna and processing provisions for the suppression of mutual interference between flying bodies used for jamming radio/radar transmitting and receiving systems. A transmitting and receiving...
4646098 Phase coherent decoy radar transmitter  
A decoy radar transmitter governed by a control signal derived from a main radar transmitter to emit radiation which is phase coherent with the carrier frequency of the main radar transmission is...
4644359 Antenna system  
Disclosed is an antenna system having a first antenna directed to receive a desired signal wave and a second antenna directed to receive only an interference signal wave superposed on the desired...
4638316 Radar reflecting electrolytes  
Method of reflecting electromagnetic energy and jamming radar by imposing a olution of an organic electrolyte with a dielectric constant of at least 90 at 25° C. in the path of the electromagnetic...
Matches 101 - 150 out of 207 < 1 2 3 4 5 >