44 results about "Military communications" patented technology

The invention discloses an intelligent signal detection and identification method based on time-frequency feature fusion and an anchor-free detection head. The method comprises the following steps: capturing a wireless signal broadband; carrying out time-frequency transformation preprocessing; signal detection and identification based on a neural network; and converting the time-frequency information. The invention provides a network suitable for signal detection and identification. The network is divided into a backbone network, a neck network and a detection head network. A backbone network composed of a component-convolution block architecture is provided, and the network complexity can be flexibly adjusted to effectively extract features; a multi-scale time-frequency feature aggregation module is inserted into the neck network to efficiently perform feature fusion; the detection head network is changed into an anchor-free mechanism to improve the output efficiency; and the final output of the network is subjected to time-frequency information conversion to obtain the bandwidth, duration and other parameters of the signal. According to the method, support can be provided for rapid and automatic signal detection and identification, and the problems of high human participation degree, high signal detection and identification rate and the like in military communication intelligence reconnaissance are effectively solved.

This invention provides an adaptive network management system for mesh networks, utilizing advanced wake-up mechanisms that include AI-driven predictive algorithms, adaptive transmission protocols, multi-layer verification processes, and device-specific wake-up profiles. The system is designed to improve network efficiency, reduce latency, and enhance energy management by selectively waking up devices based on real-time conditions, predefined schedules, or a combination of both. This system is applicable to a variety of fields, including military communications, industrial automation, and smart grids, where reliable and efficient network management is critical.

The invention relates to the technical field of wireless communication, and discloses a rapid networking method based on software defined radio fusion of multiple communication devices, which comprises the following four steps: preliminary networking, strategy decision and broadcast integration, direct neighbor device response and integration, and indirect neighbor device and other device integration. Information exchange and data transmission between cross-platform and cross-protocol communication devices are realized. And an integration mechanism of layer-by-layer diffusion is adopted, so that orderliness and high efficiency of the networking process are ensured. According to the method, network parameters do not need to be configured manually, the networking complexity and cost are reduced, and the networking efficiency and flexibility are improved. The method is especially suitable for emergency communication, Internet of Things, military communication and other scenes requiring rapid and flexible networking.

The invention discloses a multi-feature satellite navigation signal anti-deception jamming detection method based on an auto-encoder, and belongs to the technical field of satellite navigation and signal processing. According to the method, Z-score standardization processing is carried out on a received satellite navigation signal by extracting four key characteristic values including a carrier-to-noise ratio, an in-phase component, an orthogonal component and Doppler frequency shift, and dimensional difference is eliminated; and training and predicting a normal signal mode in the auto-encoder model, and comparing a reconstruction error with a set threshold value to judge whether the signal is abnormal or not. The method does not need extra hardware support, is suitable for resource-constrained equipment, has efficient and accurate detection capability in scenes of unmanned aerial vehicle navigation, vehicle navigation, military communication and the like, has the advantages of high flexibility, low cost and wide applicability, and particularly has remarkable advantages in the aspect of detecting complex deception signals.

The invention provides a multifunctional combined use method of a high-expansibility mobile power supply, relates to the technical field of mobile power supplies, and realizes modularization, multiple functions and high reliability of the power supply by constructing a combined system consisting of a main power supply module and a plurality of independent function expansion modules. The main power supply module comprises a physically reconfigurable energy storage array unit, an energy partition isolation management system, a multi-node energy routing core and a rotary encoder, and has a dynamic topology autonomous evolution capability and a fault self-healing mechanism. A multi-mode biological heuristic sensor fusion unit and a multi-stage phase change micro-cavity cooling structure are integrated in the expansion module, so that state data can be acquired in real time and thermal stability can be guaranteed. According to the invention, the adaptability, energy supply continuity and user interaction flexibility of the mobile power supply system in a complex environment are improved, and the mobile power supply system is suitable for application scenarios with high requirements on energy safety and reliability, such as field operation, military communication, disaster rescue and the like.

The invention provides a voice communication method based on Pinyin and voiceprint coding and a low-power-consumption voice terminal, and the method comprises the steps: converting voice into Pinyin and voiceprint packet codes, transmitting the Pinyin and voiceprint packet codes, restoring the Pinyin and voiceprint packet codes into a personalized voice mode at a receiving end, and achieving the breakthrough of low data volume, low power consumption and high semantic restoration rate of voice communication. According to the embodiment, the traditional voice communication data volume is reduced by more than 90%, the power consumption is reduced by more than 30-50 times, and the terminal access quantity is improved by more than 10 times. The embodiment of the invention is suitable for various scenes such as interphones, smart phones, emergency and military communication and the like; the method has revolutionary potential of reconstructing a voice communication mode in a smart phone. According to the embodiment, standardized text information is transmitted, so that the data volume is greatly reduced, and the system becomes simple, confidential and easy to deploy; therefore, a low-cost and low-power-consumption emergency disaster relief communication system capable of being connected with a satellite network can be quickly established in a remote area or under the condition of resource shortage caused by wars and disasters.

The utility model discloses a quick locking device which comprises a lock hook, the lock hook is detachably sleeved with a rivet sleeve and a spring, one end of the lock hook is detachably provided with a rotary knob, and the two ends of the spring abut against the rivet sleeve and the rotary knob respectively. According to the utility model, the expansion riveting structure design is adopted, so that parts can be prevented from falling off accidentally; the product is widely applied to the fields of aerospace, military communication, communication networks and the like due to good anti-seismic performance and locking strength; the panel mounting structure is suitable for panel mounting, has an anti-falling structure, and is good in anti-seismic performance and high in locking force.

The invention provides an environment feature-based ad hoc network endogenous security communication method and system, electronic equipment and a computer readable storage medium, and belongs to the technical field of wireless communication. According to the method, environment electromagnetic characteristics are used for driving key generation and adjustment, the limitation of traditional static encryption is broken through, and through cooperation of physical layer encryption and data modulation and fusion of network layer protection, the data confidentiality, the attack resistance and the network robustness are remarkably improved; the method is especially suitable for safety requirements of an ad hoc network radio station in dynamic scenes of military communication, emergency rescue and the like.

The invention relates to a military communication dynamic priority scheduling method based on deep reinforcement learning, and the method comprises the following steps: dynamic priority scheduling: carrying out the real-time adjustment through a dynamic priority formula according to the related information of a military task, state space definition, action space design, reward mechanism construction, Q table initialization, initial state selection and action selection are respectively carried out; an intelligent agent selects actions by using an epsilon-greedy strategy; setting the maximum number of iterations; executing the action, and updating the Q value in the Q table; in combination with multi-objective optimization, acquiring a current state and selecting actions; selecting actions by an intelligent agent by using an epsilon-greedy strategy; executing an action, observing feedback, and updating a Q table: updating a Q value in the Q table by the intelligent agent according to the new state and the reward; and military communication dynamic priority scheduling is completed. The problems of insufficient static priority scheduling, multi-objective optimization, anti-interference capability and resource utilization rate of a military communication system are solved, and the flexibility and response speed of the system are improved.

The invention discloses a low-altitude wireless network high-precision interference attack detection method based on an unmanned aerial vehicle group, and belongs to the technical field of wireless communication, network security and signal detection. According to the method, a plurality of unmanned aerial vehicles are used for measuring communication performances such as received signal strength, channel state, network feedback transmission delay and packet loss rate of a low-altitude wireless network, and hypothesis testing is constructed based on multivariate statistical characteristics to detect interference attacks such as static interference, reactive interference, random interference, sweep frequency interference, comb interference and intelligent interference. The method is suitable for smart cities, low-altitude economy, military communication, emergency communication and other scenes. The unmanned aerial vehicle group sharing detection experience can jointly mine the network interference attack situation, and reinforcement learning is adopted to continuously optimize the detection threshold, so that the false alarm rate and the missing report rate are reduced while the detection precision is ensured. The comprehensive monitoring capability, the refined classification capability, the efficient cooperation mechanism, the intelligent optimization capability and the high-precision detection performance are shown in a low-altitude wireless network scene.

The present invention relates to the field of wireless communication technology and discloses a rapid networking method for integrating multiple communication devices based on software-defined radio. The method implements information exchange and data transmission between cross-platform and cross-protocol communication devices through four steps: preliminary networking, integrated strategy decision-making and broadcasting, response and integration of direct neighbor devices, and integration of indirect neighbor devices with other devices. A layer-by-layer diffusion integration mechanism is adopted to ensure the orderliness and efficiency of the networking process. This method does not require manual configuration of network parameters, reduces the complexity and cost of networking, and improves the efficiency and flexibility of networking. It is particularly suitable for scenarios requiring fast and flexible networking, such as emergency communications, the Internet of Things, and military communications.

The present invention discloses a graphene-based macroscopic material with ultra-high electromagnetic shielding and excellent comprehensive performance and a preparation method thereof, belonging to the field of carbon-based materials. The present invention aims to solve the technical problem that it is difficult to prepare high-performance graphene macroscopic materials using graphene powder as raw materials. The method of the present invention is to mix the boron-containing substance and graphene in a mass ratio of 0.001:1 to 0.3:1 and sinter at high temperature. The present invention can be widely used in electromagnetic shielding materials for mobile phones, Wi-Fi, precision electronics, spacecraft, satellites and other aerospace equipment, radars and military communication equipment.

The invention relates to the technical field of signal processing, in particular to a signal recovery method and device based on signal noise and sparse characteristics. The method comprises the steps of providing an improved OMP algorithm based on signal noise and sparse characteristics to perform preliminary signal recovery by comprehensively analyzing the characteristics of mobility, sparse signal processing capability, communication distance and the like of nodes in an alley battle, optimizing a signal recovery result by using an L1 norm penalty term, providing a self-adaptive adjustment technology to adapt to battlefield situation changes, and improving the signal recovery efficiency. Rapid and accurate recovery of sparse signals is realized, the quality and reliability of wireless communication signals in an urban battlefield are improved, and stable and reliable support is provided for military communication.

The present invention belongs to the field of shortwave technology, and discloses a method for shortwave scattering in an anisotropic ionosphere and verification of its field strength prediction. The present invention mainly conducts computational analysis on the influence of the anisotropy of the ionosphere on radio wave propagation, and conducts research on three aspects: model establishment, algorithm derivation, scattering characteristic calculation, and field strength prediction. First, through the structural analysis of the ionosphere, the advantages and disadvantages of various models are summarized, an anisotropic ionosphere model is established, and the calculation method is derived; then, typical frequency bands of military communication, namely very long wave and short wave, are selected to study their scattering characteristics and propagation laws in the anisotropic ionosphere; finally, based on the anisotropic ionosphere scattering model, the median value of the skywave field strength is predicted and verified. The results show that the algorithm of the present invention is significantly closer to the measured data than the field strength prediction results of the statistical model, thereby verifying the accuracy of the anisotropic ionosphere model of the present invention.

The invention discloses a military communication vehicle with high noise reduction performance, which comprises a chassis and a cabin body, the chassis is used for supporting and bearing the whole vehicle, the cabin body is fixed on the chassis, the cabin body comprises an outer layer mask and an inner layer mask, and an anti-vibration noise reduction layer is arranged between the outer layer mask and the inner layer mask; silencing walls are further arranged on the inner side of the cabin body and comprise a front silencing partition wall and a middle silencing partition wall. According to the military communication vehicle with the high noise reduction performance, an all-dimensional three-dimensional noise reduction system is formed through the comprehensive design of the cabin body, the noise reduction wall and the ventilation noise reduction body, the problem that composite noise of vehicle-mounted equipment is difficult to control is effectively solved, the noise index can be controlled to be 60 decibels or below, the comfort level of workers is remarkably improved, and the service life of the workers is prolonged. And meanwhile, normal heat dissipation and operation of the equipment are considered, and the applicability and reliability are greatly improved.

The application discloses a kind of real-time simulation methods of multi-granularity modeling of communication system in confrontation simulation, constructs military communication system engineering level, function level and task level model.For the scene that higher precision is required, the antenna data of communication equipment is solved offline using professional electromagnetic simulation software, and the accurate data is obtained in real time by online interpolation during simulation running.For the scene that precision is not required, typical parameters are used to describe the directivity of antenna.For large-scale military communication network, real-time requirement is higher, so the directivity of antenna is not considered, only the communication coverage is considered.In addition, the problems of battlefield communication interference, atmosphere and terrain visibility should be considered in the modeling process.Finally, the application establishes a set of multi-granularity model from antenna solution, link simulation to military network communication, and introduces the influence of battlefield environment on communication for the communication system modeling device for confrontation simulation.

This invention relates to the field of antenna technology and discloses an integrated transceiver device for an ultra-wideband beam antenna and radome, comprising a coaxial connector, a dual-ridge waveguide, a coaxial-to-waveguide converter, a metal cap, a parasitic ridge horn section, a radome, and an integrated fixing frame. The dual-ridge waveguide is connected to the parasitic ridge horn section, and the coaxial connector is connected to the dual-ridge waveguide via the coaxial-to-waveguide converter. The metal cap seals the bottom of the dual-ridge waveguide, and the radome covers the radiating aperture of the parasitic ridge horn section and is fixed by the integrated fixing frame. The dual-ridge waveguide extends the main mode cutoff wavelength through the parasitic ridges, expanding the single-mode transmission bandwidth and achieving impedance matching with VSWR≤2 in the 5GHz~18GHz frequency band. Through an innovative integrated design, this invention achieves signal coverage across multiple frequency bands without significantly increasing the size, meeting the requirements of modern military communication and guidance systems for high-speed data transmission, strong anti-interference capabilities, and high confidentiality with excellent impedance and radiation characteristics.

The invention provides a military communication cabinet with integrated movement and heat dissipation, and relates to the technical field of military communication, the military communication cabinet comprises a cabinet body and a military communication equipment placement mechanism, the upper side of the cabinet body is provided with a heat dissipation assembly, the outer side of the heat dissipation assembly is provided with an installation assembly, the outer side of the cabinet body is provided with a moving assembly, and the outer side of the moving assembly is provided with a heat dissipation assembly. And a military communication equipment placement mechanism is mounted on the inner side of the cabinet body. According to the military communication equipment placement mechanism, various electric wires are clamped into the wire guide grooves and then fixed through the wire clamps, and the various electric wires are connected with the external display control panel, so that interference to the communication equipment in the cabinet inner bin due to disorder of the electric wires can be avoided, repair and maintenance are facilitated, and the communication equipment can be conveniently placed according to the size of the communication equipment. The L-shaped fixing frame plate is adjusted according to the width of the communication equipment, and then the L-shaped fixing frame plate is fixed to the placement frame through the screws, so that damage caused by collision during rapid movement can be avoided.

Disclose a kind of intelligent signal detection identification method based on time-frequency feature fusion and anchor-free detection head, comprising the following steps: wireless signal broadband acquisition;Time-frequency transform preprocessing;Signal detection identification based on neural network;Time-frequency information conversion.This method proposes a network suitable for signal detection identification, which is divided into backbone network, neck network and detection head network three parts.A backbone network composed of component-convolution block architecture is proposed, which can flexibly adjust the complexity of the network to effectively extract features.A multi-scale time-frequency feature aggregation module is inserted in the neck network to efficiently perform feature fusion.The detection head network is changed to an anchor-free mechanism to improve output efficiency.The final output of the network is converted to time-frequency information to obtain parameters such as signal bandwidth and duration.The method can provide support for fast and automatic signal detection and identification, effectively solving the problems of high human involvement and signal detection and identification rate in military communication intelligence reconnaissance.

The present invention relates to the field of laser communication technology, and specifically to a method for determining the initial pointing of a laser communication terminal and related equipment. The method is for a laser communication terminal on a tethered balloon platform, obtains the baseline vectors of two antennas through a dual-station GNSS receiver, and calculates the heading angle using differential positioning; at the same time, with the help of the platform's inertial measurement unit, attitude information is measured in real time, and the initial pointing vector is calculated by combining the heading angle and attitude information, ultimately obtaining an initial pointing angle including an azimuth and pitch angle. The present invention has the advantages of high precision, rapid deployment, and strong anti-interference capability, can significantly shorten the time it takes to establish a laser communication link, and is suitable for emergency communications, military communications, scientific observation and other fields.

The utility model discloses anti-interference military communication equipment, which relates to the technical field of military communication equipment and comprises a communication device group and an anti-interference shell group, the anti-interference shell group is mounted outside the communication device group, and an opening and closing cover group is connected to the vertical surface of the front side of the anti-interference shell group. Auxiliary assemblies are symmetrically installed on the left side and the right side of the anti-interference shell set, and protection assemblies are symmetrically connected to the upper side and the lower side of the anti-interference shell set. According to the anti-interference military communication equipment, through the use of the anti-interference shell group, communication faults caused by the influence of external factors in the use process of the communication device group can be effectively prevented, good structure protection can be formed through the cooperation of the use of the opening and closing cover group, and the whole device is convenient to carry and is convenient to carry through the auxiliary assembly. And the cooperative protection assembly is used, so that structural protection can be effectively provided for the whole communication device group, and the transportation and use safety and stability of the whole communication device group are ensured.

The invention provides an emergency communication device and system, and belongs to the technical field of military communication.The emergency communication device comprises a main machine and a plurality of auxiliary machines, the main machine is provided with a plurality of containing grooves, and the number of the containing grooves is equal to that of the auxiliary machines; each placement groove and each auxiliary machine are provided with corresponding conductive connectors, the main machine and the auxiliary machines are provided with input ports and output ports, the input port of each main machine is connected with the output port of each auxiliary machine through a connecting line, the main machine is provided with a transmitting unit, and the transmitting unit is connected with the main machine through a connecting line. The auxiliary machines are provided with receiving units which are in communication connection with the transmitting units, each auxiliary machine is provided with a loudspeaker, and the main machine is provided with a memory card; wherein the auxiliary machine is connected with the main machine through one of the conductive joint, the connecting wire and the receiving unit. The emergency communication system is provided with a plurality of emergency communication devices, and the plurality of hosts are in communication connection.

The invention relates to the technical field of laser communication, in particular to a method and related equipment for determining the initial direction of a laser communication terminal, and the method aims at the laser communication terminal on a captive balloon platform, obtains two antenna baseline vectors through a double-station GNSS receiver, and calculates a course angle through differential positioning; and meanwhile, attitude information is measured in real time by means of a platform inertial measurement unit, an initial pointing vector is calculated by combining the course angle and the attitude information, and an initial pointing angle containing an azimuth angle and a pitch angle is finally obtained. The method is suitable for the fields of emergency communication, military communication and scientific observation.

The invention relates to nitrogen / fluorinated modified fumed silica composite powder as well as a preparation method and application thereof, and solves the technical problems that a high-fidelity communication cable is unstable in performance and relatively large in attenuation under an ultrahigh-temperature condition. The prepared high-temperature-resistant high-fidelity communication cable internal insulation dielectric layer material can be applied to the fields of aerospace, military communication and the like.

The invention relates to a method for collaborative election of a low-delay cluster head and a gateway in a clustering ad hoc network, and belongs to the technical field of wireless communication. The method comprises the following steps: firstly, constructing an initial clustering multi-level self-organizing network model which comprises a cluster structure, node distribution and a communication channel model; secondly, performing cluster head election by adopting a combined weighting method, and constructing a utility function to select an optimal cluster head by comprehensively considering a node degree, an average routing hop count and an inter-node distance; and finally, designing a gateway node election optimization problem, and ensuring that the elected gateway node has the optimal cross-cluster communication efficiency by minimizing the end-to-end time delay between adjacent clusters and utilizing the improved ant colony algorithm to solve. Compared with a traditional method, the cluster head management capability and the gateway node cross-cluster communication efficiency are effectively improved, the network time delay is remarkably reduced, and the method is suitable for military communication, environment monitoring, intelligent traffic, disaster rescue and other scenes.

This invention relates to a priority-based dual-channel power controller, addressing the problems of voltage interruption during power switching, numerous components, and low reliability in existing technologies. The controller includes first / second input terminals, a priority setting unit, a three-resistor network, and a back-to-back PMOSFET switching circuit. Overvoltage / undervoltage thresholds (0V / UV) are dynamically set via the three-resistor network, and flexible configuration of VIN1 / VIN2 priorities is supported. Its core advantages are: achieving voltage interruption-free switching (switching time ≤2.1ms, voltage fluctuation ≤45mV); integrated design reducing discrete components by 37.5% (from 8-10 to 5), lowering component costs by over 32%; compliance with National Military Standard N1 (GJB 150A-2009), and switching reliability ≥99.95%. It is suitable for high-reliability power management scenarios such as mobile terminals, military communications, and industrial control.

At present, an anti-unmanned aerial vehicle system uses interference blocking type unmanned aerial vehicle interference equipment most widely, that is, communication or hardware of an unmanned aerial vehicle is interfered by means of electromagnetic waves, sound waves and the like, and the unmanned aerial vehicle is forced to return automatically or land automatically. The frequency of the laser is more than 100,000 times of the frequency of microwave (ultrahigh frequency electromagnetic wave), and the wavelength of the laser is very short, so that the volatility of the laser is far poorer than that of radio waves. And on the contrary, the laser has peculiar particle property, so that the laser becomes an attractive'later show 'in military communication. The invention discloses an anti-interference wireless laser flight control communication system which comprises a ground wireless terminal and an airborne wireless terminal. The ground wireless terminal is mounted on the ground; the airborne wireless terminal is mounted on the unmanned aerial vehicle; the ground wireless terminal and the airborne wireless terminal have the same structure, and each of the ground wireless terminal and the airborne wireless terminal consists of an optical transceiver, an optical antenna and a tracking detector. The laser is used as an information carrier and is not easily interfered by the outside; and laser is used for positioning, so that external interference is avoided.

1. Name of the product in this design: Handheld VHF Radio. 2. Applications of this design: Primarily used in military and civilian communications, specifically including: command system communications, tactical coordination, equipment interconnection; industrial production, emergency rescue, and daily communications. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key features: the front view.