46 results about "Radio jamming" patented technology

The embodiment of the invention discloses a railway radio interference monitoring method, device and equipment and a computer readable medium. A specific embodiment of the method comprises the following steps: monitoring frequency spectrum data of a railway radio target frequency band and an associated frequency band in real time to obtain target frequency spectrum data and associated frequency spectrum data; performing spectrum analysis processing on the target spectrum data and the associated spectrum data to determine whether a potential interference signal exists; in response to determining that the interference signal exists, acquiring a same-direction orthogonal signal; determining an interference type by using the same-direction orthogonal signal and a pre-trained railway radio interference identification model; and on the basis of the interference type, generating reporting alarm information, and sending the reporting alarm information to a target terminal. According to the implementation mode, through daily and real-time monitoring, interference signals are intelligently collected and analyzed, problems are found in advance, and major potential safety hazards in the railway operation process are avoided.

Aspects of the subject disclosure may include, for example, attaching, by a radio circuit, to a terrestrial radio network for radio communications with the terrestrial radio network, monitoring an altitude of the radio circuit relative to a surface of earth, and attaching, by the radio circuit, to a non-terrestrial radio network for subsequent radio communication with the non-terrestrial radio network to limit radio interference on the terrestrial radio network, wherein the attaching to the non-terrestrial radio network is responsive to the altitude of the radio circuit exceeding a first elevation threshold value. Other embodiments are disclosed.

The invention relates to the field of radio interference intelligent identification and positioning, in particular to a multi-source data fusion water radio interference identification and positioning method and system, and the method comprises the following steps: collecting multi-source data; performing multi-source data fusion processing; constructing a rule base, and screening out suspected abnormal signals from the frequency spectrum situation map through threshold judgment and rule matching; a support vector machine model is called, multi-dimensional static signal features are used as input, a classification hyperplane is constructed through a radial basis kernel function, and normal signals and abnormal signals are distinguished from suspected abnormal signals; calling a decision tree model, and performing scene judgment on the suspected abnormal signal to identify the abnormal signal; calling a convolutional neural network model, converting the time domain signal into a spectrogram through short-time Fourier transform, and extracting texture features through multilayer convolution to identify an abnormal signal; through the method and the system, real-time identification and high-precision positioning of interference signals can be realized.

The invention discloses a digital solid mineral resource exploration and data acquisition internet-of-things transmission method and system, and the method comprises the steps: carrying out the denoising and normalization processing of multi-source sensing data through an edge calculation node, and guaranteeing the data quality; a low-power wide area network and 5G and LoRa converged communication are combined to construct an efficient transmission channel, and a standby link is switched by detecting radio interference to guarantee the transmission stability; cloud edge collaborative data encryption is utilized, and a block chain technology is combined to record and upload a log, so that data security and traceability are ensured; and finally, performing three-dimensional geologic body modeling and geographic information system analysis based on the traceable data, and generating accurate scheduling instruction data. According to the invention, through the whole process innovation from data processing, transmission optimization, safety guarantee to prediction modeling, the efficiency of geological data processing and the accuracy of metallogenic prediction are significantly improved, and reliable technical support is provided for geological exploration.

The invention relates to a method for detecting and mitigating an interference attack by an interference transmitter in a wireless V2X communication network in which a plurality of mobile devices communicate with one another, comprising: analysing received signals with respect to power-related parameters, wherein an interference signal is detected in the event of a deviation from specified power parameters, classifying the interference signal according to whether the interference signal is a genuine interference signal or a false interference signal, wherein an energy pattern of the interference signal is determined on the basis of the estimated parameters, and wherein an AI-based discriminator is used such that after a test with an appropriate probability sequence either the interference signal is detected as a genuine interference signal or the interference signal is detected as a false interference signal, classifying the genuine interference signal for different radio interference attacks such that a mitigation measure of the genuine interference signal takes place, on the basis of the type of interference attack determined, in such a way that the effect of the interference transmitter is weakened. An autonomous vehicle equipped with mobile sensors, particularly drones, which can be operated in both coupled and autonomous modes, wherein said drones can be deployed with reconfigurable intelligent surfaces (RIS) for mitigating interference attacks and defending against cyber threats, such as interference transmitters, to ensure security and efficiency of the V2X wireless communication network.

The invention discloses a railway radio interference analysis method based on machine learning. The method comprises the following steps: step 1, acquiring radio signal data in a railway communication scene; 2, performing signal preprocessing on the radio signal data; 3, extracting the interference structure characteristics of railway radio through the improved RepLKNet network, and generating an interference structure characteristic pattern; 4, constructing a training sample set based on the interference structure feature map; 5, inputting the training sample set into the improved TimesNet network to execute supervised training, and obtaining a railway radio interference analysis model; step 6, loading the railway radio interference analysis model, performing interference analysis on the radio signal data to be analyzed, and outputting an interference analysis result; and 7, outputting an interference analysis result. According to the invention, through the improved RepLKNet network and the improved Times Net network, the accuracy and stability of railway radio interference analysis are improved.

Embodiments of the present application provide a communication method, device, system, storage medium and program product, the method comprising: a first terminal device receiving first information, the first information being used for indicating a radio interference map, the radio interference map comprising at least one interference region, the interference region being obtained based on at least one transmission layer of at least one terminal device; and the first terminal device further sending second information, the second information being determined based on the first information, the second information comprising at least one of the following: an identifier of a first interference region, first interference channel information. Wherein the at least one interference region comprises the first interference region, the first interference region corresponding to at least one transmission layer of the first terminal device, and the first interference channel information corresponding to the first terminal device. The first terminal device feeds back the second information based on the first information, so as to facilitate the network device to perform scheduling, avoid pairing users subjected to strong interference, and improve the signal-to-interference-and-noise ratio and spectral efficiency.

Methods, systems, and devices for reducing the impact of a jamming signal on wireless communications are described. Generally, the described techniques provide for receiving a first signal at a first antenna and receiving a second signal at a second antenna. An anti-jammer manager may process the first signal and the second signal to obtain a residual signal. The processing may include determining a weighting factor based at least in part on a correlation between the first signal and the second signal, applying the weighting factor to the first signal to create a weighted first signal, and subtracting the weighted first signal from the second signal to obtain the residual signal. A demodulator may demodulate the residual signal to obtain symbol information. A decoder may decode the symbol information to obtain data. The techniques may be used to recover a desired signal portion from a jammed signal.

The application provides a radio interference source automatic positioning and troubleshooting system and method thereof, the radio interference source automatic positioning and troubleshooting system comprises a front-end hardware enhancement module, a core algorithm optimization module and a system-level cooperative positioning module, the radio interference source automatic positioning and troubleshooting method comprises hardware deployment and preprocessing, spatial domain beamforming and subarray combination, digital domain multipath elimination and signal recovery and the like, the radio interference source automatic positioning and troubleshooting system and method thereof provided by the application effectively solve the problem that the traditional equipment cannot distinguish the direct wave from the reflected wave, so that the direction finding result is seriously deviated or even points to the wrong direction, and greatly improve the accuracy and reliability of the direct wave identification of the signal.

An apparatus of a communication device, the apparatus may include: an interface configured to transmit a sensing signal and receive a reflected sensing signal; and a processor configured to: determine a sensing signal configuration of a further communication device;estimate a sensing interference of the further communication device based on the sensing signal configuration; and perform an interference cancellation on the reflected sensing signal using the sensing interference.

The invention discloses a system for obtaining the annual statistical value of the corona effect of a high-altitude AC power transmission line through quarterly observation, and the system comprises an audible noise measurement device which comprises at least one outdoor microphone disposed at a preset position, and an analyzer; the radio interference measuring device comprises an antenna and a receiver which are arranged at preset positions of the power transmission line; the meteorological equipment is used for measuring and distinguishing weather and rainy days; the computer is in communication connection with the audible noise measuring device, the radio interference measuring device and the meteorological equipment, and is used for synchronously controlling the start and stop of the equipment and collecting and storing data; wherein the audible noise measurement device, the radio interference measurement device and the meteorological equipment form an all-weather synchronous measurement system which is configured to acquire data through synchronous observation of three consecutive months in autumn, and the data are classified and counted by the computer according to weather conditions; and obtaining a rainy day audible noise L50 value capable of representing a year-round statistical result, and a radio interference average value in rainy days and good weather.

Although not part of the telecommunications system 400 itself, also shown in FIG. 4 are some other devices which are operable to wirelessly communicate with one another and which are operating within the radio environment of the telecommunications system 400. In particular, there is a pair of wireless access devices 416 communicating with one another via radio link 418 operating in accordance with a Wi-Fi standard and a pair of Bluetooth devices 420 communicating with one another via radio link 422 operating in accordance with a Bluetooth standard. These other devices represent a potential source of radio interference for the telecommunications system 400. It will be appreciated that in practice there will typically be many more such devices operating in the radio environment of the wireless telecommunications system 400, and only two pairs of devices 416, 420 are shown in FIG. 4 for simplicity.

The invention provides an AD9361-based radio interference signal generation method, which is characterized in that a baseband interference signal is generated in an FPGA (Field Programmable Gate Array) through the function configuration of a multi-path parallel DDS (Direct Digital Synthesizer) and an upper computer, the baseband interference signal and a local oscillator signal are mixed through the configuration of AD9361, and then the interference signal is output in a radio frequency manner, and the AD9361-based radio interference signal generation method has four interference modes, the interference modes comprise a single-tone interference mode, a frequency sweeping interference mode, a frequency hopping interference mode and a suppression interference mode. According to the invention, target interference capability of multiple frequency bands and multiple communication systems can be realized, and the effect of changing flexibility into controllability is achieved; according to AD9361 configuration, effective power control can be utilized to the maximum extent, and the output management capability of the system is improved.

The invention relates to the technical field of equipment platform task scheduling, in particular to an automation equipment platform task scheduling control method and system, and the method comprises the following steps: recognizing automation equipment in an idle state according to the state information of the automation equipment; enabling the automatic equipment in the idle state to enter an environment surveying mode; judging whether an external interference event exists or not so as to generate interference event information; generating and maintaining a wireless interference thermodynamic diagram, wherein the wireless interference thermodynamic diagram reflects the distribution and intensity of local radio interference; and performing a task scheduling decision, wherein the task scheduling decision comprises evaluating the position interference intensity of the candidate automation equipment and avoiding an interference area when a task path of the mobile equipment is planned. The operation stability of the automatic equipment platform can be improved, and limitation is overcome.

The invention discloses a radio interference source positioning method based on multi-station data in the technical field of radio communication. The method comprises the following steps: S1, constructing an interference diagnosis atlas; s2, obtaining an interference diagnosis mode according to the signal characteristic factor and a signal benchmarking factor of the interference diagnosis atlas; s3, performing interference source initial positioning at the initial measurement point pair based on an interference initial measurement direction, an initial measurement diagnosis interval and an interference diagnosis mode to obtain an interference remeasurement point; s4, a retest diagnosis interval is obtained through analysis, and if the retest diagnosis interval is smaller than or equal to a preset interval threshold value, an interference positioning source is obtained according to the interference retest point; and S5, if the retest diagnosis interval is greater than a preset interval threshold value, performing interference source relocation at the retest point based on the interference retest direction, the retest diagnosis interval and the interference diagnosis mode until the retest diagnosis interval is smaller than the preset interval threshold value, and obtaining an interference location source according to the interference retest point. According to the invention, the efficiency and accuracy of radio interference source positioning are improved.

[Problem] To eliminate a threat by limiting, deterring, and jamming the operation of a mobile object which poses the threat. [Solution] This defense system comprises one or more transmitters 2 for outputting specific radio waves, and a plurality of antennas 3 capable of radiating the radio waves outputted from the transmitters 2 in a specific direction. The defense system is configured to cause interference so that the radio waves radiated from the plurality of antennas 3 are strengthened at a specific point, thereby forming a radio jamming wave at the specific point, and forms a radio jamming area S by scanning the radio waves radiated from the plurality of antennas 3, and scanning the radio jamming wave within a specific two-dimensional or three-dimensional area.

A facility that controls participants in an ad hoc peer wireless network to use transmission power level settings and routing paths that best serve individual participants in the network and the network as a whole is described. Variously, the facility modulates transmission power levels to extend participant battery life and reduce the likelihood of radio interference in the network; establishes routing paths that contribute to the effectiveness and continuing operation of the network; and monitors for and responds to the occurrence of interference in the network's communications.

A solution for radio jamming detection is disclosed. The solution comprises determining M subcarriers in a time-frequency resource grid to be blanked and outputting the M subcarriers in the time-frequency resource grid to be blanked by performing at least one of the following operations: first determination of a number M of subcarriers in a time-frequency resource grid to be blanked based on probability of detecting a jammer attack or on channel quality of subcarriers in the time-frequency resource grid, second determination of which M subcarriers in the time-frequency resource grid are blanked taking into account the channel quality of subcarriers in the time-frequency resource grid.

The invention discloses a cognitive radio interference prediction method and device, and relates to the field of signal prediction, and the method comprises the steps: deploying a sensing sensor node sampling target frequency band, constructing a space-time frequency spectrum matrix, and extracting a time-frequency domain three-dimensional feature tensor; constructing a spatial relation graph, fusing the time-frequency features and the spatial domain topology by using a graph neural network, and generating a fusion feature vector; performing scene classification and labeling through an improved fuzzy C-means algorithm; a parallel dual-channel neural network is adopted, and a lightweight convolutional neural network and a multi-layer perceptron processing feature are combined to predict interference intensity and position an interference source; interference propagation path loss is calculated, a coverage thermodynamic diagram is generated, a spectrum access decision is optimized, and transmission parameters are dynamically adjusted. The method has the advantages that interference characteristics are accurately captured through multi-dimensional data fusion, the spectrum access decision is optimized, and the anti-interference capability and the spectrum utilization rate of a wireless communication system are remarkably improved.

The utility model discloses a modularized radio interference device in the technical field of radio interference devices, which comprises a shell, a fixing groove is arranged in the shell, a signal generation module is detachably connected in the fixing groove, a side cover is rotatably connected to the inner wall of the fixing groove, a locking assembly is arranged on the shell, and the locking assembly is connected with the signal generation module. The locking assembly is used for fixing the side cover, a power amplification module is fixedly connected into the shell, a power distribution bin is formed in the shell, a battery is arranged in the power distribution bin, the shell is detachably connected with a bin cover, a groove is formed in the upper end of the shell, a connecting plate is detachably connected into the groove, and the connecting plate is detachably connected with the power amplification module. The shell is provided with a fixing assembly, the fixing assembly is used for fixing the connecting plate, and the connecting plate is detachably connected with an antenna. The radio interference device has the advantages that the radio interference device is modularly designed, so that each module is convenient to maintain or replace.

The invention belongs to the technical field of electromagnetic compatibility of radio station communication systems, and particularly relates to an additional device for electromagnetic compatibility of an emergency radio station communication system. An interface and electromagnetic interference source identification circuit, a self-adaptive filter circuit, a grounding facility integrator circuit, an electronic shielding circuit, a radio signal interference neutralization circuit, a common-mode and differential-mode interference reduction circuit, a system control and display operation circuit and the like are used; electromagnetic interference filtering, electromagnetic interference source confirmation, common-mode and differential-mode interference reduction, leakage electromagnetic interference suppression, radio interference signal neutralization and electronic shielding are carried out on single equipment, equipment and all the equipment in an emergency radio station communication system without change, so that simple and rapid electromagnetic compatibility in the system is realized.

The present invention relates to radio interference test systems and a radio interference test method for live recording and replaying RF inferences from the air. The present disclosure provides an easily deployable RF interference test setup for testing interference robustness or problematic interferers in particular in the approach to an airport or an airport runway. The present invention is based on the idea to employ specific non-commercial aerial vehicles, such as drones or aerial test vehicles, which are equipment with a suitable test equipment in order to be able to follow an approach path or flight path of a commercial plane for testing purposes.

The invention discloses a radio interference calculation method and device for a high-altitude ultrahigh-voltage alternating-current transmission line. The method comprises the following steps: calculating to obtain the maximum field intensity of the surface of a wire according to the structural parameters and the operating voltage of a line; respectively calculating a rainy day radio interference excitation function and a good weather radio interference excitation function based on the maximum field intensity of the surface of the conductor, the structural parameters of the line and the meteorological parameters of the target area; calculating the radio interference current of each phase conductor through mode transformation according to the rainy day radio interference excitation function and the good weather radio interference excitation function; and according to the radio interference current, the radio interference levels of good weather and rainy days under the influence of different meteorological conditions are solved.

A facility that controls participants in an ad hoc peer wireless network to use transmission power level settings and routing paths that best serve individual participants in the network and the network as a whole is described. Variously, the facility modulates transmission power levels to extend participant battery life and reduce the likelihood of radio interference in the network; establishes routing paths that contribute to the effectiveness and continuing operation of the network; and monitors for and responds to the occurrence of interference in the network's communications.

A multi-band filtering transceiver includes a multi-band antenna, a transceiver switch, transmission circuitry, receive circuitry, a multiplexer coupled to the transmission circuitry and the receive circuitry. The multiplexer outputs a signal of interest in accordance with an open standard protocol. The receive circuitry includes a bandpass filter coupled to the receiving port of the transceiver switch, a low noise amplifier having an input coupled to the bandpass filter, a band separation circuit coupled to an output of the low noise amplifier. The band separation circuit is operative to output a full spectrum signal corresponding to the entire frequency band and a first sub-band signal corresponding to a first portion of the entire frequency band. A full band circuit to receive the full spectrum signal and a first sub-band circuit first sub-band signal. The full spectrum signal and the first sub-band signal are simultaneously transmitted to the multiplexer for downstream processing.

The application discloses a kind of radio system interference processing method and equipment, it is related to radio anti-interference technical field, including real-time environment monitoring and data acquisition;Interference source detection and accurate identification;Interference source dynamic prediction and trend analysis;Multi-dimensional interference avoidance strategy generation;Real-time feedback and intelligent decision optimization;Collaborative work and system integration;Final performance evaluation and adjustment.The priority of the application is, through real-time environment monitoring, accurate identification and dynamic prediction of interference source, realize the rapid positioning and accurate avoidance of radio interference source, compared with traditional fixed threshold or energy detection method, can respond to the dynamic change of frequency, bandwidth, power etc.of interference source in time, reduce misjudgment and omission, avoid blind avoidance or over-avoidance, improve the accuracy of interference avoidance.

The utility model discloses laser interception unmanned aerial vehicle countering equipment which comprises a base, and universal wheels are fixedly connected to the four corners of the bottom of the base. Through the cooperation of the base, the universal wheels, the mounting port, the mounting plate, the electric push rod and the brake plate, the device can flexibly move to different positions so as to meet the requirements of different scenes, can be stably fixed after reaching a designated position, avoids displacement during working, drives the rotating disc to rotate through the gear motor, and improves the working efficiency. Further, the radio jammer main body and the laser striker main body on the loading frame can rotate in the horizontal direction, the countering range is expanded, the rotating motor drives the detection radar main body to rotate, omnibearing unmanned aerial vehicle detection can be realized, the probability of finding a target is improved, and the detection efficiency is improved. And meanwhile, the radio jammer main body, the laser impactor main body and the detection radar main body are integrated on the loading frame, so that the equipment is compact in structure, the occupied area is reduced, and unified control and operation are facilitated.

[Problem] To improve frequency utilization efficiency while protecting an entity to be protected from radio wave interference. [Solution] A communication control device comprises a processing unit that, on the basis of information relating to the position of a communication device which emits radio waves and information relating to the position of a device to be protected from radio wave interference, performs a first assessment for assessing whether a path between the communication device and the device to be protected is LOS or NLOS, and that, on the basis of information relating to a building disposed in a geographical environment between the communication device and the device to be protected, performs a second assessment for assessing whether an assessment error is likely to occur in the first assessment.

Method for analyzing radio interference in connection cables to home network routers, wherein a plurality of home network routers detect interference signals in respective router connection cables connected to the home network routers and generates for each detected interference signal a data record describing the detected interference signal with a timestamp indicating a time of the interference signal (30), and system for analyzing radio interference in connection cables to home network routers.

The invention relates to the field of military technology for monitoring and combating drones. An apparatus includes a video signal receiving unit, a radio interference generator, a video recorder with a monitor, a control unit, and a power supply unit. The control unit is configured to receive data from the video signal receiver, convert the data into a video stream, and transmit the data to the radio interference generator after analyzing the video signal to disable a video transmission function of the drone or replace the video signal. The video signal receiving unit comprises a plurality of video signal receivers which operate independently and respectively cover radio frequency bands of 1.2 GHz, 1.5 GHz, 2.4 GHz, 3.3 GHz and 5.8 GHz; the radio interference generator is configured to cover radio frequency bands of 1.2 GHz, 1.5 GHz, 2.4 GHz, 3.3 GHz, and 5.8 GHz, respectively.