29 results about "Radio fix" patented technology

The invention discloses a design method for controlling interaction of a plurality of radio stations under short-wave networking, which comprises the following steps of: in a starting stage, acquiring radio station fixed parameters of all network control console sides; sending an application subscription protocol to all radio stations on the network console side; sending all successfully planned short-wave frequency sets to the successfully subscribed radio stations, and pre-tuning the frequency sets by the radio stations; sending other parameter configurations of the radio station to the radio station which is successfully pre-tuned, and sending a setting result after the radio station is successfully set; after a task execution command is sent out, service switching is carried out; selecting a proper transmitting radio station group; a transmitting frequency point of each transmitting point is selected through an ionosphere propagation prediction model frequency selection algorithm, and the frequency and the bandwidth of the current service are modified at the corresponding radio station; state reports of the selected radio station groups are compared, and the same service content information is uniformly sent to the ready radio stations within a certain time; according to the scheme, the wireless transmission efficiency under networking is improved, and the diversity combining effectiveness is improved.

The present invention discloses an airborne lightning detection system, which belongs to the technical fields of lightning early warning for aircraft and lightning monitoring and early warning for high-speed ground vehicles. It addresses the problem that existing technologies cannot achieve high-precision single-station measurements, making them unsuitable for use in mobile devices. The system includes vertical and horizontal antennas for acquiring vertical and horizontal electric field signals from a space lightning radiation source; an integration circuit for converting the electric field signals into voltages; a high-pass amplifier circuit for filtering out clutter from the integrated voltage signal, performing waveform identification and matching, and amplifying the radiation signal; a sampling analog-to-digital conversion circuit for sampling the signal output by the high-pass amplifier circuit and converting the analog signal into a digital signal; a radio positioning antenna for acquiring lightning direction information from the lightning radiation source; and an embedded Linux system that combines the digital signal and lightning direction information to calculate the distance from the lightning radiation source. The system is used to calculate the distance between the radiation source and an observation point.

The application belongs to the technical field of communication, and proposes a city road traffic congestion control method and system based on radio positioning. The main scheme is as follows: a base station sends a first confirmation instruction to a first communication range at a first communication frequency; a vehicle-mounted navigation software of a vehicle receives the first confirmation instruction, obtains initial congestion information based on the reception information of the first confirmation instruction, and determines whether to establish a self-organizing network according to the initial congestion information; in the self-organizing network, each vehicle receiving the first confirmation instruction is regarded as a basic node, and a center node is selected from the basic nodes; the center node sends a second request instruction to the basic nodes in a second communication range at a second wireless communication frequency; based on the response information of the second request instruction, it is determined whether the lane where the vehicle corresponding to the basic node is located is congested; when it is determined that the lane is congested, the rear vehicle in the same driving direction is sent the lane change suggestion information.

Disclosed are systems, methods, and non-transitory media for providing signaling consideration for wireless positioning with disjoint bandwidth segments. For instance, one or more indications of a preferred bandwidth configuration can be transmitted by a user equipment. Based on the one or more indications, the user equipment can receive a positioning configuration that indicates disjoint bandwidth segments containing a positioning reference signal based on the preferred bandwidth configuration. In response, the user equipment can then determine one or more positioning measurements based on the positioning reference signal in the disjoint bandwidth segments.

The present application relates to the field of radio positioning technology, in particular to a kind of helicopter emergency rescue positioning method and system, comprising the following steps: ground base station through the initial positioning signal sent by helicopter in rescue area, the time stamp of signal is bound with signal data, the signal time mark data is generated by analyzing the relevance of data and time.In the present application, by using time axis reversal and adjusting signal amplitude, the signal quality is optimized, the stability and reliability of signal in interference environment are enhanced, through encoding processing, the signal can reduce loss in transmission process, the transmission effect of signal is optimized, the overall receiving efficiency of signal is improved, the ground base station uses signal propagation time difference and path change data, carries out multiple comparison, calculates helicopter position in real time, significantly improves the accuracy and efficiency of rescue positioning, realizes the goal of quick and accurate positioning in emergency rescue, improves the success rate and safety of rescue.

The application belongs to the technical field of radio positioning, and particularly relates to a kind of intelligent metasurface assisted user positioning method based on modified dimensionality reduction MUSIC.The method utilizes the phase reconfigurable characteristics of intelligent metasurface, constructs zero-mean orthogonal phase coefficients, separates out base station-user direct channel and base station-intelligent metasurface-user cascade channel, estimates intelligent metasurface-user channel under the assumption that base station-intelligent metasurface has good line-of-sight path, thereby calculates the left and right correlation coefficients of two channel sections, and reconstructs left and right pseudo-covariance matrix using the Toeplitz matrix of correlation coefficient, further obtains pseudo-covariance matrix, then performs eigenvalue decomposition on pseudo-covariance matrix, constructs modified dimensionality reduction MUSIC spatial spectrum using the orthogonality of signal space and noise space, thereby estimates the azimuth of base station-user and intelligent metasurface-user, and then calculates the user position using least square method.The application trades off higher estimation accuracy for complexity.

System for transmitting emergency calls, in particular via remote emergency access, by third-party providers (TPSP) (13), as well as silent emergency calls to a competent control center (10), characterized by the following steps: a. Determining the position of the entity of the emergency caller (14a,b,c,d) using GPS, radio tracking, cell-based location data and / or a predefined value, whereby the determination of the position can be automated or manual, b. Forwarding of the position data and other relevant information (16) to the TPSP (13) and / or a server or server system (11), c. Creation and / or editing of a data set (16) by the TPSP (13) which includes at least position data and event-related information, d. Transfer or updating of this data set (16) to a server (11, 12), in particular an AML (12) or backend server (11), for storage and retrieval by the responsible control center (10), e. Retrieval of the data set (16) from the server (11, 12), in particular an AML (12) or backend server (11), by the control center for transfer to the dispatch system (10a).

A communication method and a related device, in which method a first signal sent by a first communication device for sensing is carried in a first frequency band, the first frequency band being different from a second frequency band. Wherein the second frequency band is located in a mobile service frequency spectrum, and part or all of the first frequency band is located in a radio positioning service frequency spectrum. In other words, a portion or all of the perceived signals may be carried on the radio positioning traffic spectrum. Therefore, different communication devices can use the radio positioning service frequency spectrum to realize transmission of the sensing signal, interference of the communication signal transmitted on the mobile service frequency spectrum on the sensing signal can be avoided or reduced, and the sensing performance is improved. In one possible implementation, the bandwidth of the first frequency band may be greater than the bandwidth of the second frequency band. In addition, since the size of the sensing bandwidth is positively correlated with the size of the sensing performance, different communication devices can use the first frequency band to realize the transmission of the sensing signal so as to further improve the sensing performance.

A communication method and a related apparatus. In the method, a first signal for sensing, which is sent by a first communication apparatus, is carried in a first frequency band, the first frequency band being different from a second frequency band, wherein the second frequency band is located in a mobile service spectrum, and part or all of the first frequency band is located in a radio location service spectrum. In other words, part or all of a sensing signal may be carried on the radio location service spectrum. Thus, different communication apparatuses can use the radio location service spectrum to realize the transmission of sensing signals, and can avoid or reduce interference, to the sensing signals, from communication signals transmitted on the mobile service spectrum, thereby improving the sensing performance. In a possible implementation, the bandwidth of the first frequency band may be greater than the bandwidth of the second frequency band. Since the size of a sensing bandwidth is positively correlated with the sensing performance, different communication apparatuses can use the first frequency band to realize the transmission of sensing signals, thereby further improving the sensing performance.

The application provides a Doppler positioning method based on frequency hopping spread spectrum, and belongs to the technical field of radio positioning, to solve the problem that the fixed carrier frequency mode adopted by the traditional Doppler positioning technology makes the signal extremely easy to be intercepted, oriented and interfered. The method comprises the following steps: step 1: describing an application scenario; step 2: in the application scenario, a frequency hopping measurement signal is sent by a transmitting end; step 3: in the application scenario, a receiving end performs frequency hopping synchronization and measures a Doppler shift; step 4: a Doppler shift is preprocessed; and step 5: the preprocessed Doppler shift is used to calculate the position of a terminal to be positioned in combination with the relative motion of the transmitting end and the receiving end. The method can obtain the low interception rate and anti-interference ability given by the rapid change of the carrier frequency, and can also use the frequency diversity characteristics of frequency hopping to reduce the positioning performance deterioration caused by the multipath effect, and is suitable for application scenarios with high requirements for robustness, positioning accuracy and other performances.

The application discloses a kind of civil active emission echo radio positioning system and method, by oneself antenna array, oneself signal processor and power supply and the other party antenna, the other party signal processor and the other party power supply composition.Pass through oneself antenna array and emit radio signal, the other party antenna detects after active radio signal is emitted back oneself antenna array, respectively detects each antenna in oneself antenna array, with the distance or phase or signal frequency or propagation time difference of the other party antenna, after oneself signal processor calculation and using oneself power supply, and the other party signal processor calculation and using the other party power supply, can accurately position oneself and the other party spatial relative position.The radio positioning system is composed of oneself antenna array, oneself signal processor and power supply and the other party antenna, the other party signal processor and the other party power supply composition.Solve the problem that object between aircraft, automobile, ship, pedestrian etc.are not easy to position, improve information transparency, and have good promoting effect to the development of traffic industry.

The present application relates to material conveying technical field, disclose material conveying system and transfer positioning method, material conveying system includes: material conveying device, has unloading port;Transfer device, has receiving port;Multiple positioning components, each positioning component includes laser radar positioning unit and radio positioning unit, laser radar positioning unit includes radar part and reflection part, radio positioning unit includes signal transmitting part and two positioning terminals, control component is connected with each positioning component, the material conveying device and transfer device of the present application detect the position information of oneself through laser radar positioning unit and radio positioning unit simultaneously, can effectively guarantee the positioning accuracy under the ring of mine operation, two kinds of positioning mode share complementary, through control component receives position information and adjusts the relative position of material conveying device and transfer device in real time, so that the unloading port and receiving port can continuously keep in the preset cooperation posture, avoid the situation of scattering material in the process of material conveying.

The embodiment of the invention relates to the technical field of constructional engineering, and discloses a curtain wall unit plate hoisting navigation monitoring method and system.The method comprises the steps that in the process of hoisting a target curtain wall unit plate, at least three linear distances are determined based on at least three base stations located in the same installation plane with a target curtain wall unit; determining actual coordinates of the target curtain wall unit plate based on the linear distances, the obtained coordinates of the base stations, the current position of the winch, the number of rotation turns of the winch and the diameter of the winch; and when it is determined that the actual coordinates are equal to the preset target coordinates based on the obtained historical actual coordinates and the historical preset target coordinates, the target curtain wall unit plate is controlled to stop moving, so that the target curtain wall unit plate is installed at the position corresponding to the preset target coordinates. The penetrability of radio signals is higher than that of satellite signals, and the accuracy of determining the position of the target curtain wall unit plate is improved in a radio positioning mode in a scene where satellite positioning is serious due to signal shielding.

Systems and methods for radio access network (RAN)-based user equipment (UE) location determination in non-terrestrial networks (NTNs) are discussed herein. Round trip time (RTT) mechanisms, uplink angle of arrival (UL-AoA) mechanisms, and / or uplink time difference of arrival (UL-TDOA) mechanisms may be used between a UE and one or more NTN payloads operating a serving cell of a base station to provide the base station data used to determine a location of the UE. In some example, a single uplink (UL) reference signal is used in conjunction with multiple payloads, while in others multiple UL reference signals sent during different measurement instances are used with a single payload. The base station may not be dependent on certain core network (CN)-related functionality (e.g., an LTE positioning protocol (LPP) and / or an NR positioning protocol A (NRPPa)) to make this determination. In some embodiments, a determined location is used to verify a UE-reported location.

Systems and methods are provided to determine an estimated location of a user equipment (UE). For instance, a UE can provide a positioning request to a node while the UE is in a radio resource control idle (RRC_IDLE) or inactive (RRC_INACTIVE) state. The positioning request can be implemented in a random access channel (RACH) message A (MsgA). The UE can then receive a positioning response from the node. The positioning response can be implemented in a RACH message B (MsgB).

Systems and methods for enabling data collection at a Radio Access Network (RAN) node for RAN node assisted positioning with a RAN node side model. In one embodiment, a method performed by a RAN node for data collection for training, retraining or evaluating an Artificial Intelligence (AI) or Machine Learning (ML) (i.e., AI / ML) model for positioning in a wireless communication system comprises sending, to a Location Management Function (LMF), a New Radio Positioning Protocol a (NRPPa) message that indicates requested positioning-related data. The method further comprises receiving, from the LMF, an NRPPa message comprising the requested positioning-related data and training, retraining, and / or evaluating a performance of an AI / ML model for positioning in the wireless communication system, based on the received positioning-related data. In this manner, the RAN node is enabled to collect positioning data information.

Systems and methods are disclosed for User Equipment (UE) positioning for uplink grant resources. In one embodiment, a method performed by a location server includes sending one or more first New Radio Positioning Protocol Annex (NRPPa) messages to a base station that serves a target UE. Herein, the one or more first NRPPa messages include at least an expected periodical reporting of the target UE and provide priority indication associated with positioning requirements of the target UE so as to enable the base station to configure uplink grant resources. Also, the method further includes receiving, from the base station, a second NRPPa message that acknowledges a success or failure of the configured uplink grant resources.

The invention relates to the technical field of unmanned aerial vehicle navigation and positioning, in particular to a radio navigation and positioning method and system for an unmanned aerial vehicle. The method comprises the following steps: acquiring initial starting point and initial turning point data of an unmanned aerial vehicle to generate an initial path, and generating a radio temporary navigation path according to a satellite interruption area in the initial path; acquiring satellite positioning data of the unmanned aerial vehicle in the satellite uninterrupted area; triggering a path change request in the buffer area, and receiving radio positioning data in the satellite interruption area; the system comprises an initial and temporary path generation module, a satellite positioning data receiving module and a radio positioning data receiving module. A temporary navigation path is generated in an initial path in advance, a satellite-radio navigation positioning mode is changed in a buffer area, and positioning data is acquired, so that the problem of positioning interruption of the unmanned aerial vehicle in a satellite interruption area under complex conditions is solved, and the influence on the precision of navigation positioning data of the unmanned aerial vehicle is avoided; therefore, the positioning robustness of the unmanned aerial vehicle in a complex environment is improved.

The invention relates to the technical field of unmanned aerial vehicle positioning, and provides an unmanned aerial vehicle radio communication positioning method and system, and the method comprises the following steps: obtaining target data when a first radio positioning signal of an unmanned aerial vehicle is in a first interference state; the first moment is the previous moment of the current moment; determining a position range of the unmanned aerial vehicle at the current moment according to the target data; determining whether the first radio positioning signal is in a second interference state according to the first radio positioning signal and the position range of the unmanned aerial vehicle; the signal interference degree corresponding to the second interference state is greater than the signal interference degree corresponding to the first interference state; and when the first radio positioning signal is in the second interference state, determining target position information of the unmanned aerial vehicle at the current moment according to the first radio positioning signal and the position range of the unmanned aerial vehicle. The accuracy of unmanned aerial vehicle positioning can be improved.

The invention discloses an electric power system inspection unmanned aerial vehicle cooperative positioning method and system, relates to the field of radio positioning, and aims to improve the positioning precision and cooperative capability of an unmanned aerial vehicle group in an electric power inspection process. By introducing a hierarchical positioning mechanism of the piloting unmanned aerial vehicle and the common unmanned aerial vehicle, the piloting unmanned aerial vehicle is responsible for providing high-precision positioning data, and the common unmanned aerial vehicle performs positioning calibration through communication with the piloting unmanned aerial vehicle. According to the method, a GPS, an inertial navigation system and a visual SLAM technology are combined, environmental factors such as wind speed, illumination intensity and the like are comprehensively considered, and calibration frequency and time window duration are dynamically adjusted by calculating credibility of each unmanned aerial vehicle. According to the method, the adaptability and the collaborative operation capability of the unmanned aerial vehicle group in a complex environment are remarkably enhanced, the dependence on the performance of a single unmanned aerial vehicle is reduced, high-precision positioning can still be kept in an environment with weak or changeable GPS signals, and the method has a wide application prospect.

The present invention discloses a method for rapid radio signal recognition based on color-enhanced image recognition. It includes a radio fixed station monitoring data acquisition and processing module, a signal pattern annotation and training module, a radio signal image preprocessing module, and a signal monitoring module. The radio fixed station monitoring data acquisition and processing module collects and analyzes radio data; the signal pattern annotation and training module is used to annotate and train signals, and uses an image recognition algorithm to perform deep neural network learning to acquire a signal recognition model; the radio signal image preprocessing module uses pseudo-color enhancement to generate corresponding waterfall graphs by frequency band; and the signal monitoring module performs signal recognition on the preprocessed signal waterfall and extracts and stores it. The beneficial effects of the present invention are: it can automatically extract the pattern characteristics of radio waves, improving the ability to recognize radio signals in complex environments.

The invention discloses a spin scanning direction finding and cross positioning method based on a single unmanned aerial vehicle platform, and relates to a radio positioning technology. The method comprises the following steps: controlling an unmanned aerial vehicle carrying a directional antenna to hover at a first measurement point and spin around an axis, and synchronously acquiring received signal strength (RSSI) and a yaw angle; obtaining a first azimuth angle of the radiation source by detecting an RSSI peak value; then the unmanned aerial vehicle flies to a second measurement point to repeat the process to obtain a second azimuth angle; and finally, calculating the coordinates of the radiation source by using a cross positioning principle according to the coordinates and the azimuth angles of the measurement points. According to the invention, the antenna mechanical scanning is realized by using the spinning of the unmanned aerial vehicle, the single-station multi-point direction finding and positioning are realized by using extremely simple hardware (single antenna), and the method has the advantages of low cost, fast deployment and easy integration, and is suitable for fast searching and positioning of a ground fixed radiation source.

In a device and a method for checking the plausibility of a position of at least one object, said position being based on the image data of an interior camera provided in the interior of a vehicle, an object comprising at least one radio-based communication unit is located in the interior of the vehicle by radio; position data for determining the located position of the object in the interior of the vehicle is generated; the position data is processed; the located position of the object is determined; and on the basis of the located position, the plausibility of the image-data-based position of the object is checked.

The application discloses a kind of field exploration positioning modeling integrated systems based on radio positioning, core module includes data control module, transceiver control module and three-dimensional modeling module;Among them, data control module is used to start and execute positioning task, provides positioning information to three-dimensional modeling module;Transceiver control module responds to positioning control instruction, corrects positioning and generates positioning information and returns to data control center;Three-dimensional modeling module obtains the positioning information sent from data control module, realizes the real-time construction and update of map three-dimensional model in combination with map information;Core module is integrated on a circuit board and is integrally packaged, and constitutes field exploration positioning modeling integrated system.According to the above technical scheme, hardware integration and data center can be uniformly scheduled, multiple functions can be aggregated into a single system, which can significantly reduce equipment redundancy, ensure the accuracy of modeling and positioning, enhance the adaptability to field environment, and improve the precision of three-dimensional modeling.

This invention belongs to the field of radio positioning technology, specifically relating to a signal source positioning method based on a smart metasurface assisted by maximum parallelism. Utilizing the phase reconfigurability of the smart metasurface, a zero-mean phase coefficient is constructed. The user-access point direct channel matrix and the user-smart metasurface-access point cascaded channel tensor are separated, and parallelism operations are performed with the array response codebook matrix of the direct channel and the array response codebook tensor of the cascaded channel, respectively, to obtain the parallelism spatial spectrum of the user-access point and user-smart metasurface. The user's position is estimated by finding the angle corresponding to the peak of the spatial spectrum and using the least squares method. Compared to the traditional 2D-MUSIC method, which requires two-dimensional peak search, this invention employs two one-dimensional peak searches, significantly reducing computational and search complexity. Simultaneously, by setting time-varying smart metasurface phase coefficients, this invention maximizes the spatial degrees of freedom of the smart metasurface through spatiotemporal transformation.

A radio positioning system applied to a Mars unmanned aerial vehicle belongs to the field of radio positioning in radio technology. The present application aims at the problem that the Mars unmanned aerial vehicle cannot be effectively positioned by external means. Four antennas are arranged at the four corners of the front surface of a square PCB to form a planar pseudo-Doppler antenna circular array; four microwave switches, a baseband circuit and a single-chip microcomputer are arranged on the front surface of the PCB; four-way microstrip radio frequency transmission lines, four sets of TOF ranging chips and peripheral circuits are arranged on the back surface of the PCB; each antenna is connected to a microwave switch, the microwave switch is connected to the starting end of a microstrip radio frequency transmission line, the ending ends of the four-way microstrip radio frequency transmission lines are connected to the baseband circuit after converging at the center point of the square PCB; each set of TOF ranging chip and peripheral circuit is arranged close to an antenna and connected to the antenna through the microwave switch; the microwave switch is controlled by the single-chip microcomputer to position the unmanned aerial vehicle based on signals. The present application is used for radio positioning.

The present invention discloses a method for eliminating the near-far effect in a broadcast radio positioning system, a storage medium, and a terminal device, comprising the following steps: multi-source data acquisition and preprocessing; constructing a dynamic graph data structure; constructing a Transformer-GNN joint model; model training and optimization; and model evaluation and adaptive optimization. The present invention implements global signal correlation analysis through the self-attention mechanism of the Transformer. Based on the alternating stacked GNN-Transformer architecture, it introduces residual connections and a gating mechanism to dynamically fuse local-global features. It combines phased training with a dynamic weight adjustment strategy to optimize positioning accuracy and interference suppression capabilities. It supports multimodal data fusion, significantly improving anti-multipath performance and dynamic adaptability in complex scenarios, and solves the defects of traditional methods such as high computational complexity, strong hardware dependence, and insufficient environmental robustness. It is suitable for suppressing the near-far effect when satellites are unavailable, improving system positioning accuracy, and enabling the system to be better applied in high-precision positioning scenarios such as indoor positioning and drone navigation.

Disclosed are systems, methods, and non-transitory media for providing signaling consideration for wireless positioning with disjoint bandwidth segments. For instance, one or more indications of a preferred bandwidth configuration can be transmitted by a user equipment. Based on the one or more indications, the user equipment can receive a positioning configuration that indicates disjoint bandwidth segments containing a positioning reference signal based on the preferred bandwidth configuration. In response, the user equipment can then determine one or more positioning measurements based on the positioning reference signal in the disjoint bandwidth segments.

The invention discloses a multi-source RTCM data preferential processing method and system, particularly relates to the technical field of differential data services in a satellite radio positioning system, and is used for solving the risk of differential service interruption caused by the fact that an existing RTK base station depends on a single data source and a single transmission link. The method comprises the following steps of: simultaneously connecting a network RTK (Real Time Kinematic) and a plurality of data sources of a local positioning module by configuring a reference station, receiving an RTCM data packet of each data stream in parallel and performing real-time verification; when a plurality of effective data packets compete for each other, performing prospective evaluation and preferential selection based on a historical association relationship between data packet characteristics and multi-band broadcast efficiency, and generating current effective RTCM data; and at least two wireless data transmission modules with different working frequency bands are used for broadcasting and sending at the same time. Redundancy is constructed on a data source and a wireless link, and the reliability and continuity of differential data required by high-precision positioning applications such as unmanned aerial vehicle formation are remarkably improved in combination with a cross-layer optimized intelligent preferential mechanism.