248 results about "Electronic warfare" patented technology

In phased array antennas, multiple signals that perform different functions, such as radar, electronic warfare (EW) and telecommunications, can each be simultaneously transmitted only through a different sub-aperture of the array. For maximum power and efficiency, the power amplifiers operate on one signal at a time. This patent provides the technique of forming a common waveform from multiple signals for transmission through a common aperture. To practically implement this technique in wideband operations, processes performing the required waveform-shaping and amplitude-to-phase-modulation are devised that can transmit the high-power diverse waveforms without serious intermodulations and spectral distortion through every element of the array.

What is provided is a receiver-on-a-chip comprising a monolithic integrated circuit that reduces the receiver to a cigarette-pack-sized assembly mountable directly at an antenna element, with a much-increased operational bandwidth and instantaneous bandwidth, increased dynamic range and with a two-order-of-magnitude decrease in size and weight. Moreover, because of the elimination of all of the I/O drivers and attendant circuitry, power consumption is reduced by two-thirds, whereas the mean time before failure is increased to 10,000 hours due to the robustness of the monolithic integrated circuit and use of fiber optics.

The present invention provides an adjustable mobile electronic device holder that enables a user to operate a mobile electronic device such as a cell phone, tablet, or electronic reader in a hands free manner. The adjustable mobile electronic device holder includes a flexible arm interconnected with a plurality of flexible legs adapted to wrap around and grip a fixed object at a first end and a clamp mechanism adapted to secure a mobile electronic device at a second end. The clamp mechanism for securing the mobile electronic device includes a plurality of adjustable, flexible fingers that can grip the mobile electronic device placed therein. The flexible legs include independently adjustable ball and socket connectors in a linear arrangement. The flexible legs are used to mount the device onto the user's body or a fixed object whereby the mobile electronic device can be moved into a desired position for viewing.

The invention discloses an establishing method of an electronic wallet based on a block chain. The method comprises steps of 1) establishing a new transaction and issuing various types of assets; 2) carrying out the transaction and broadcasting transaction lists to the whole network through a P2 network; 3) carrying out transaction verification; 4) verifying results and broadcasting transaction results to the whole network after the transaction is finished; and 5) writing the transaction results into a block of a block chain. According to the invention, by use of the distributed account book technology, the digital asset flows and real cash payment on the block chain are connected, so in the global Internet market, the function of high-efficiency and low cost value delivery that the traditional financial mechanism cannot replace can be developed; a block chain credit system from the information to the value network is formed; the cryptography packet of each person can be developed into a 'self-finance' platform; and payment, depositing, transferring, exchange, loans and the bookkeeping and clearing in the whole network of the P2P can be achieved.

In the field of power synthesis, the present invention proposes a compact four-way power distribution and synthesis structure, including a straight waveguide, a microstrip probe, an impedance matching section, a Wilkinson bridge, and an isolation resistor, and the straight waveguide is the input port of the power divider and the output port of the synthesizer, two symmetrical substrates are arranged at a quarter wavelength away from the short-circuit surface of the straight waveguide, and opposite microstrip probes for signal coupling are fixedly installed on the substrates, and each microstrip probe The strip probes are matched and connected to the microstrip line through the corresponding impedance matching section, and the microstrip line corresponds to the cascaded Wilkinson bridge; the impedance matching section, microstrip line, and Wilkinson bridge are all installed on the substrate The present invention has the characteristics of small size, compact structure, low loss, high port isolation, wide bandwidth, etc., and also has the function of four-way power distribution/combination from waveguide to microstrip transition; it can be applied to radar, electronic countermeasures, Electronic communication and other fields, suitable for microwave and millimeter wave frequency bands.

A Method and Apparatus to Perform Surgical Reactive Jamming while Maintaining Simultaneous Tactical Communications is disclosed. The system provides an enhancement to surgical reactive jammers that combines near-real-time jamming capability with the additional feature of allowing tactical communications. The tactical communications transmissions are compressed and packetized such that they can be broken up and transmitted during the jamming system's look-through periods. This approach facilitates listening during these look-through periods (not only for EW emitters, but also for friendly communications signals). The system should allows for talk during these look-through periods (“talk-through” periods). Such a system is unique in that it can automatically calculate the best frequency for a surgical reactive jammer to use against enemy targets as well as providing a fully secure tactical communications link which is synchronized with other units in the field. This invention is therefore vital to the interests of United States national security as it provides a valuable Electronic Warfare capability.

The integrated, multiple independent, simultaneous signal software defined radio system architecture of this invention is suitable for many new very-low latency, software defined radio applications, both cognitive and conventional, including: communications networks, electronic warfare, surveillance and radar. The system supports multiple operations, locally controlled or remotely controlled, with simultaneous signals prosecutions and anti-jam system-to-system networking. New cognitive waveforms are defined that simultaneously seek to maximize data throughput in arbitrary spectral environments, while normally avoiding interference with current and new arbitrary signal occurrences. The cognitive radio system has the capability to continuously receive and process all the ongoing signals present in a wideband frequency block, including the recognition/characterization of all signals and the recovery of multiple desired signals, and then rapidly respond by transmitting as appropriate, multi-carrier, modulated signals. The present invention uses massively-parallel fixed tuned receive channelization, along with massively parallel digital signal processing and software generated, multi-modulated RF signals, to provide a system that is fast enough to cognitively manage the ongoing operation of multiple signals, multiple frequencies, and multiple operations, all simultaneously.

A method and system for extending the electronic operational range of a slow vehicle, such as a ship, by using a remotely SHIP controlled unmanned faster vehicle, such as an Unmanned Aerial Vehicle (UAV), and by way of example a remotely controlled drone. More particularly, the present invention relates to a method and system for extending the Electronic Warfare (EW) support for a ship.

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 radar (i.e., d >>λ). The EW cross-eye system further comprises a receive polarimeter for measuring the tracking signal and a second polarimeter for synthesizing the measured tracking signal to produce, for transmission, a jamming signal comprising a pair of inverted amplitude signals that are 180 degrees out of phase with each other.

An electronic counter measures solution. Jamming signals are emitted towards a threat to improve chances of survival for at least two vehicles, which are physically separated from one another, however associated with one another in a group. Each of the at least two vehicles receives a wireless time reference signal from an external resource. The vehicles exchange messages over a wireless data link. The messages pertain to usage of at least one electronic warfare resource in each vehicle. Based on the messages and the time reference signal the usage of at least one first electronic warfare resource in a first vehicle is coordinated with the usage of at least one second electronic warfare resource in a second vehicle, such that a particular type of jamming signal is emitted alternately either from the at least one first resource or from the at least one second resource, essentially without any overlaps or gaps in time. Thereby, a false target is created between the vehicles with respect to a weapon which operates in a so-called Home-on-Jam mode.

The invention relates to a distributed electronic counter measures solution, wherein jamming signals (J_A; J_B) may be emitted towards threats (X1, X2) from counter measures stations in multiple vehicles (A, B), which are physically separated from one another in order to improve the chances of survival the vehicles (A, B) as well as any other vehicles that are associated with these vehicles (A, B) in a group of vehicles. The vehicles in the group exchange messages (D) over a wireless data link (L), where the messages (D) sent from a particular station specify an availability status (D_res-status) for each electronic warfare resource in the station and a threat status (D_thr-status) registered by the station. A station in the group having a central planning function coordinates any jamming signals (J_A; J_B) emitted from the electronic warfare resources of the stations in the group, such that the resources are optimally used with respect to all of any registered threats (X1, X2). This coordination is based on estimated geometric interrelationships between the at least two stations in the group; estimated geometric relationships between the at least two stations in the group and at least one registered threat (X1, X2); and the respective resources of each station in the group.

The invention relates to the technical field of radar echo signal simulation. The embodiments specifically provide a radar echo signal simulation method and system. According to the radar echo signalsimulation method, radar transmission signals are received and are subjected to down-conversion processing twice; the modulation information of the radar transmission signals, the parameter information of a simulation target and the azimuth information of the simulation target are obtained through algorithm processing, and, finally digital signals carrying target information are synthesized; the digital signals carrying target information are converted into simulation signals and radar echo signals are emitted after two-time up-conversion processing. The radar echo signal simulation method does not need instruction of actual targets for simulation, thereby saving cost; the method can simulate all information of targets and can be directly applied to radar electronic warfare simulation tests or vehicle-mounted radar echo simulation tests, so that the performance of tested targets/systems can be tested comprehensively and accurately.

The invention relates to an electronic lock control system, a control method and an electronic failure removing method thereof, and aims to solve the technical problems that conventional like electronic locks are poor in energy-saving effect and difficult to unlock after failure. The control system comprises an electronic control part and a mechanical control part, and the design feature of the control system is that the electronic control part comprises a power supply and a control switch controlled by a signal source; the mechanical control part comprises an electromagnet, a mechanical lock and a lock cylinder switch acting while a mechanical key is inserted into the mechanical lock; the power supply, the control switch, the electromagnet and the lock cylinder switch are in a serial connection to form a control loop; the electromagnet and a lock cylinder of the mechanical lock are in interlocking under the electrifying condition; and in an initial state, the control switch is in a closure state, and the lock cylinder switch is in an off state. According to the electronic lock control system, the control method and the electronic failure removing method thereof, the structural principle is simple, the control mode is reliable, the power is saved, even though the power is used up, the mechanical lock can still be used for unlocking, so that the electronic lock control system, the control method and the electronic failure removing method thereof are suitable for being applied to control systems of various types of electronic locks or improvement of the control modes of the electronic locks.

A distributed and coordinated electronic warfare system is disclosed, which comprises a plurality of autonomous, geographically-distributed, mobile units (e.g., soldiers, vehicles, etc.), each of which carries an electronic warfare module. Each electronic warfare module comprises: a telecommunications transceiver for enabling the electronic warfare modules and their users to communicate with each other, and a threat-detection receiver for detecting potentially hostile radio signals, such as those that are used to detonate IEDs; and a jamming transmitter for transmitting sequences of electromagnetic pulses to interfere with potentially hostile radio signals, and an electronic warfare controller for coordinating the efforts of the electronic warfare modules.

The invention relates to a photoelectric warfare infield semi-physical simulation system based on a mechanical arm and belongs to the field of infield simulation and research. The system is used for realizing the full real-time dynamic semi-physical simulation, is reasonable in cost and is used for estimating the research and development on a foundation and onboard photoelectric warfare weapon system in wave bands such as visible light and medium/long wave infrared. The system comprises a guided missile guider, an interference laser emitter, a target simulation source and a launching pad, wherein the guided missile guider is hung on the mechanical arm; a linear motor is used for driving the mechanical arm to move on a cross beam; and the interference laser emitter and the target simulation source are fixed on the launching pad. A simulation interference system equivalent a laser divergence angle is used for performing real-time estimation on the tracking, the fighting time selection and the fighting performance of a laser warfare weapon after an infrared terminal guided missile attacks from a place 10km away. Meanwhile, the system provided by the invention is applied to other interference devices such as heat source and point source jammers for estimating an terminal guided section of an attacking missile.

The invention relates to the technical field of visual simulation, and discloses an electronic warfare visual simulation platform based on XML and a method thereof, wherein the electronic warfare visual simulation platform adopted by the method comprises: a visual simulation model generator, a model navigator, an operation display, a scene navigator, a scene data manager, and a network communication manager, the visual simulation model generator being connected to a first input end of the operation display through the model navigator, a second input end of the operation display being connected to an electronic warfare physical device, a data simulation platform, and a control computer of an external system through the network communication manager and Ethernet; and a third input end thereof being connected to the scene navigator, and an output end thereof being connected to the scene data manger. The invention can implement independent deployment of each component of the system, facilitating reuse of the electronic warfare visual simulation model and mutual operation, and reducing repetitive development of the electronic warfare simulation system. The invention has better openness, versatility and flexibility, and is adaptive to application requirements of different electronic warfare tests.