8 results about "Military communications" patented technology

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.

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.

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.

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.

The invention provides a preparation method of a formic acid protonated MXene / ANF / Pd aerogel composite membrane and application of the formic acid protonated MXene / ANF / Pd aerogel composite membrane in the field of electromagnetic shielding. The precious metal Pd is quickly reduced from the precious metal waste liquid by utilizing rich reducing active sites on the surface of the MXene nanosheet and is uniformly loaded on the surface of the MXene nanosheet, so that the formic acid protonated MXene / ANF / Pd aerogel composite membrane with enhanced performance is generated. The electromagnetic shielding effectiveness of the product prepared by the method is gt in the X wave band; the high-shielding-requirement scene such as military, communication, industry and the like is suitable for the high-shielding-requirement scene; pd is extracted and recovered from the Pd-containing noble metal waste liquid, so that the method has the industrial popularization advantages of low cost, low energy consumption, high selectivity, high economic effect and environment friendliness; the preparation process is good in repeatability and low in instrument requirement, and the aerogel film is high in mechanical flexibility and high in shielding effectiveness and has great application potential in the field of flexible electromagnetic shielding protection.

This utility model relates to the field of communication device technology, specifically a communication management device, including a device body. The device body includes an upper shell, a lower shell, and a communication management working unit, which is located between the upper and lower shells. The upper and lower shells are detachably connected. A vibration-damping mounting platform is provided on the lower shell. The communication management working unit includes a CMU motherboard, a battery, and a wireless data transmission module. The CMU motherboard and the battery are both mounted on the vibration-damping mounting platform. The battery supplies power to the CMU motherboard and the wireless data transmission module. The wireless data transmission module is located outside the CMU motherboard and is connected to the CMU motherboard via signal. By implementing vibration-damping design on the core components of the existing communication management device, the impact of complex vibration conditions such as vehicle-mounted and airborne applications is reduced, making it more suitable for military communication scenarios.

The invention discloses a preparation method of an acetic acid protonated MXene / ANF / Pt aerogel composite membrane and application of the acetic acid protonated MXene / ANF / Pt aerogel composite membrane in the field of electromagnetic shielding. The noble metal Pt can be uniformly loaded on the surface of the nanosheet by utilizing rich reducing active sites on the surface of the MXene nanosheet, so that the composite aerogel film with improved performance is prepared; the product shows excellent electromagnetic shielding performance in the X wave band, the shielding effectiveness exceeds 50 dB, and the requirements of military, communication, industry and other high-requirement shielding scenes can be met; the process has the comprehensive advantages of low cost, low energy consumption, high selectivity, remarkable economic benefit, environmental friendliness and the like, and has a good industrial popularization prospect; the preparation method is high in repeatability and low in requirements for instruments and equipment, and the obtained aerogel film has excellent mechanical flexibility and high shielding effectiveness and shows wide application potential in the field of flexible electromagnetic shielding.

The invention relates to the technical field of all-optical communication systems, in particular to an all-optical communication device and method based on bundled optical fiber spheres. The core of the device comprises a clustered optical fiber sphere, a zoom lens group and a spectroscope, the clustered optical fiber sphere is formed by clustering a large number of optical fibers, and transmitting and receiving optical fibers which are physically separated are uniformly distributed on the hemispherical end face of the clustered optical fiber sphere, so that the communication capability in any direction is ensured; the zoom lens group dynamically adjusts the focal length of a light path and optimizes the light beam emission and signal receiving effects; the spectroscope separates an optical path based on wavelength selectivity, and realizes transmit-receive isolation under a common aperture. According to the method, a traditional mechanical control scheme is replaced by an all-optical signal transmission mechanism, and non-blind area omnidirectional communication is realized. According to the invention, the size, weight and power consumption of the system are significantly reduced, the communication reliability and environmental adaptability are improved, and the system is suitable for satellite interconnection, unmanned aerial vehicle clusters, military communication and other scenes.