183 results about "Communications receiver" patented technology

An optical communication receiver system for a mobile platform includes: a surface having an entrance aperture for entry of an optical communication signal from a remote source; an optical receiver to receive the optical communication signal through the entrance aperture; a reflective layer over at least a portion of the surface to at least partially reflect an alignment beam that is substantially coincident with the optical communication signal; a camera positioned to detect the reflected alignment beam; a processor to determine alignment information about the alignment beam relative to the entrance aperture based on the reflected alignment beam detected by the camera; and a transmitter to transmit the alignment information to the remote source to enable the remote source to center the optical communication signal in the entrance aperture.

The invention relates to the technical field of communication transmission, in particular to a communication signal processing method and a communication receiver. The method comprises the following steps: acquiring position information data of a communication receiver; performing network domain construction on the communication receiver position information data to generate a communication connection network domain; performing multi-source heterogeneous communication signal acquisition on the communication connection network domain to obtain a standard multi-source heterogeneous communication signal; performing network domain compatibility level classification on the communication connection network domain to generate network domain compatibility level data; performing optimal mapping path adjustment on the communication connection network domain by using the network domain compatibility level data so as to generate a dynamic topology mapping rule; and performing multi-protocol seamless adaptation conversion on the communication connection network domain based on the standard multi-source heterogeneous communication signal through a dynamic topology mapping rule to generate a protocol adaptive conversion strategy. According to the invention, through intelligent scheduling, protocol adaptation, dynamic topology adjustment and signal steganography technologies, the efficiency and security of cross-domain communication are improved.

A circuit board for an air-gap-based, network isolation device includes a set of connection port elements, each connection port element in the set of connection port elements being connected to relay array and comprising a plurality of connection ports. Each of the connection port elements comprises a network connection port configured to connect the circuit board to a network link. The circuit board further includes a controller connected to each relay array, and a communications module comprising a set of communication receivers connected to the controller. The communications module receives commands from a master computer, external to the circuit board, to close each relay array connected to each of the set of connection port elements.

An integrated photonics millimeter wave (MMW) radar communication system based on analog phase modulation scheme includes an integrated photonics MMW radar communication signal transmitter, a radar receiver, and a communication receiver. The transmitter includes a radar communication signal analog phase modulation module, an optical frequency comb (OFC) module, an electro-optic modulator (EOM), an optical shaping filter, an optical power divider, a photoelectric detector, an electric power amplifier, and a transmitting antenna that are cascaded sequentially. The radar receiver includes a radar receiving antenna, an electric low-noise amplifier (LNA), an optical phase modulator, an optical bandpass filter (BPF), a low-speed photoelectric detector, an electric low-pass filter, and a low-speed oscilloscope that are cascaded sequentially. In the communication receiver, a communication receiving antenna is sequentially cascaded with an electric LNA, a frequency mixer, and an oscilloscope, and a voltage-controlled oscillator is cascaded with a frequency multiplier and then connected to the frequency mixer.

A method and apparatus for cross-computing power cluster communication, an electronic device, and a computer readable storage medium, are provided. An implementation of the method includes: in response to a communication initiator and a communication receiver respectively belonging to different computing power clusters, increasing a RDMA connection count on the basis of an initial connection count until a detected actual bandwidth value no longer increases, to obtain a target connection count; increasing, with the RDMA connection count being maintained at the target connection count, a Buffer size on the basis of an initial size until a detected actual bandwidth value no longer increases, to obtain a target size; determining cross-cluster transmission parameters, based on the target connection count and the target size; and communicating, cross-cluster transmission parameters, with the communication receiver belonging to a different computing power cluster.

The invention provides a full-space intelligent metasurface-assisted vehicle tracking method and system. The system comprises a roadside unit RSU, a vehicle top IOS and an in-vehicle communication receiver CR. The RSU comprises an MIMO (Multiple Input Multiple Output) multi-antenna system; the IOS assists the RSU to communicate with the CR in the vehicle and track the vehicle, and high-precision vehicle tracking is realized by designing a customized extended Kalman filter (EKF) method and utilizing position side information provided by the IOS. According to the method, the IOS is utilized to assist the MIMO multi-antenna ISAC system, and the transmitting beam forming and IOS configuration of the RSU are jointly optimized, so that the sensing performance is remarkably improved, the CR communication rate is ensured, and particularly, excellent performance is shown under the conditions of high power and a large number of IOS units.

The waveguide carrying a nonlinear crystal with reflective interface, a pump photon source and a circulator define an optical parametric amplifier which uses optical power from the pump photons to boost incoming signal and idler photons which carry the encoded signal. The nonlinear crystal performs optical parametric amplification upon the incoming optical signal in a quantum photonic process that generates additional signal and idler photons to thereby boost the intensity of the incoming signal. A photodetector is coupled for communication with the third port and operative to convert the reflected optical signal into an electrical signal defining the output of the communications receiver.

The invention relates to a Rydberg atomic communication receiving system and method based on AT split peak value analysis, and belongs to the technical field of quantum communication. The system comprises a detection laser, a coupling laser, an AOM / EOM, a function generator, a high-frequency signal generator, a cesium atom gas chamber, a photoelectric detector, a lock-in amplifier, a data acquisition module and a microwave signal output module. The AOM / EOM modulates the frequency of the detection laser; the microwave signal output module generates an AM modulation microwave signal and transmits the AM modulation microwave signal to the cesium atom gas chamber, so that the target Rydberg state atoms generate an AT splitting effect to calibrate system parameters; the photoelectric detector and the lock-in amplifier obtain a first harmonic component based on the transmission light. During communication, the system is arranged in a microwave electric field received by communication, and the data acquisition and processing module outputs AM modulation microwave signals received by the recovered cesium atom gas chamber based on calibrated system parameters and phase locking. The method solves the problem of signal distortion existing in EIT-AT direct communication transmission and the problem of tedious operation of a heterodyne method.

An optical wireless communications (OWC) receiver is configured for receiving light encoded with one or more data signals from one or more light sources of one or more OWC transmitters and for generating one or more electrical signals which are representative of the received light. The OWC receiver comprises a photodetector configured to generate the one or more electrical signals, a freeform optical component comprising a plurality of lenslets, each lenslet comprising a corresponding lenslet optical surface, wherein at least one of the lenslet optical surfaces is translationally and cylindrically asymmetric, wherein the freeform optical component comprises a three-dimensional freeform optical surface which includes the lenslet optical surfaces, and wherein the freeform optical component and the photodetector are configured so that the freeform optical component directs at least a portion of the light that is incident on the freeform optical component from the light source onto the photodetector. An OWC transmitter and an OWC system are also disclosed.

The invention provides a communication method and a communication device supporting a variable authentication label length, and the method comprises the steps: generating a first key stream and a second key stream according to input data through employing a ZUC algorithm, and carrying out the encryption processing of the input data through employing the first key stream, and obtaining a ciphertext message; a secret key mixing step: performing shift operation on the current secret key and the next secret key in the second secret key stream to obtain secret key mixed data; a first updating step: updating the next secret key as the current secret key, and sequentially repeating the secret key mixing step and the first updating step for at least one time until all secret key mixed data is obtained; calculating a target message authentication code according to the second key stream and all key mixed data; and sending the ciphertext message and the target message authentication code to a communication receiver. The problem that in the prior art, the bit number of integrity verification is too single, and integrity verification of different lengths cannot be adopted for messages of different importance degrees, so that the risk that a secret key is attacked and cracked is increased is solved.

An optical communication receiver system for a mobile platform includes: a surface having an entrance aperture for entry of an optical communication signal from a remote source; an optical receiver to receive the optical communication signal through the entrance aperture; a reflective layer over at least a portion of the surface to at least partially reflect an alignment beam that is substantially coincident with the optical communication signal; a camera positioned to detect the reflected alignment beam; a processor to determine alignment information about the alignment beam relative to the entrance aperture based on the reflected alignment beam detected by the camera; and a transmitter to transmit the alignment information to the remote source to enable the remote source to center the optical communication signal in the entrance aperture.

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for radio frequency band segmentation, signal detection and labelling using machine learning. In some implementations, a sample of electromagnetic energy processed by one or more radio frequency (RF) communication receivers is received from the one or more receivers. The sample of electromagnetic energy is examined to detect one or more RF signals present in the sample. In response to detecting one or more RF signals present in the sample, the one or more RF signals are extracted from the sample, and time and frequency bounds are estimated for each of the one or more RF signals. For each of the one or more RF signals, at least one of a type of a signal present, or a likelihood of signal being present, in the sample is classified.

The invention discloses a miniaturized high-stability satellite-borne Rydberg atomic broadband communication receiver system, which realizes phase locking of probe light and coupling light through an optical frequency comb, realizes coupling of multiple paths of coupling light paths through a wavelength division multiplexing system, reduces the complexity of the system, and improves the system reliability. The optical lens and the glass air chamber are fixed through the hydrogen-oxygen catalytic bonding (HCB) bonding technology, the stability of Rydberg atom system space application is improved, the complexity of the Rydberg atom multi-frequency-point communication system is simplified, the Rydberg atom spectrum measurement range is widened, and the measurement accuracy of the Rydberg atom multi-frequency-point communication system is improved. A multi-frequency-point, miniaturized and ultra-stable communication receiver system can be realized, and a new method is provided for a satellite-borne Rydberg atomic broadband communication receiver.

The invention discloses a real-time damage detection device for a communication receiver under strong electromagnetic pulse impact, and belongs to the field of electromagnetic compatibility. According to the device, different signal injection modes are adopted, the injection power and the injection duration of signals are adjusted, an injection experiment of high-power electromagnetic pulses is carried out, and the damage condition of the communication receiver under strong electromagnetic pulse attack in a complex electromagnetic environment is simulated through the working state of the most sensitive first-stage low noise amplifier of the receiver, so that the reliability of the communication receiver is improved. And real-time damage detection is carried out, and exploration about damage conditions is carried out, so that timely maintenance and further protection of the communication receiver in a complex environment are facilitated. The device can simulate the impact effect of strong electromagnetic pulses on the communication receiver, comprehensively monitor the working state of the communication receiver in real time and record the damage condition, provide core support for rapid positioning and isolation of fault equipment, and remarkably shorten the communication link repair time.

The invention discloses a wireless communication receiver data enhancement method based on a diffusion model, and belongs to the technical field of wireless communication. The method comprises the following steps: S1, collecting channel measurement data and corresponding user positions and speeds; s2, training a diffusion model by using channel measurement data under the conditions of user position and speed; s3, generating synthetic channel data by using a diffusion model according to the user position and speed of the scene to be enhanced; s4, combining the channel measurement data with the synthesized channel data to obtain an enhanced channel data set; and S5, generating a receiver training data set based on the enhanced channel data set, and training a receiver neural network model. According to the invention, the scene-adaptive synthetic channel data is generated based on the diffusion model, the demand for channel measurement data is reduced, the adaptive capability of a receiver model to different scenes is improved, and the problems of high data acquisition cost and poor scene adaptability in the prior art are solved.

SYSTEM FOR COMMUNICATING WITH ELECTRONIC EQUIPMENT, ADAPTER FOR SUCH A SYSTEM, AND CONTAINER FOR SUCH ELECTRONIC EQUIPMENT. One aspect of the invention aims to enable communication of electronic equipment (2) enclosed in a container (4) without compromising the transmitted data. It relates in particular to a communication system (3) comprising: an authorized transmitter (31); and a receiver (32), connected to the equipment (2), the transmitter and receiver being configured to communicate contactlessly, the receiver only allowing communication to and from the electronic equipment when a key (61) is detected in the data received (510) by the transmitter. Thus, the electronic equipment can only be queried by an authorized transmitter. An unauthorized transmitter (not knowing the key) has little chance of establishing communication with the electronic equipment. Figure to be published with the abstract: Figure 2

The invention discloses a security data encryption method and system for wireless communication of vehicle-mounted equipment. The method comprises the following steps: acquiring modulation frequencies, frequency deviation ranges and communication data of two communication parties; generating according to the modulation frequency and the frequency deviation range to obtain a wireless communication frequency point; calculating according to the wireless communication frequency point to obtain a current frequency point deviation value; calculating according to the current frequency point deviation value to obtain baseband signal data; performing modulation according to the communication data and the baseband signal data to obtain modulation data; according to the modulation data, sending the modulation data through a sender to obtain sending data; receiving the sent data through a receiver to obtain received data; and carrying out separation according to the received data to obtain an original signal. According to the method, the problem of insufficient wireless communication security caused by the fact that a communication sender and a communication receiver adopt the same carrier frequency and frequency point to carry out data communication can be solved.

This invention provides a communication countermeasure simulation method based on random simulation, belonging to the field of electronic countermeasure simulation technology. The method first establishes a probability distribution model of reconnaissance information deviation for key parameters of the communication target; then, based on the probability distribution model of each parameter deviation, independent random sampling is performed to generate instantaneous values ​​of frequency deviation, positioning deviation, and modulation pattern recognition results at each moment, and the guidance parameters of the jammer are determined; next, the instantaneous interference-to-signal ratio (ISR) at the target receiver at the current moment is calculated; finally, the ISR calculated at the communication receiver is compared with a preset communication performance degradation ISR threshold to determine whether the jamming is successful. The model of this invention has clear physical meaning and can accurately quantify the impact of reconnaissance information deviation and propagation loss on the jamming effect, significantly improving the credibility and practicality of the simulation evaluation.

serial communications bus.20 25 28 73 31 24 D ec 2 02 5 A B S T R A C T 2 0 2 5 2 8 7 3 3 1 2 4 D e c 2 0 2 5 s e r i a l c o m m u n i c a t i o n s b u s . 400 Serial communications bus interface 220A 408A Upstream Serial communications receiver bus 412A 404A 410 402 Upstream transmitter Upstream control 414A Clock Upstream enable Lock-out Serial communications Downstream control control circuit bus interface 220B Electronic 404B 414B processor Downstream Downstream enable 408B transmitter 406B 3 / 5 Downstream Serial communications receiver bus 412B FIG. 4 20 25 28 73 31 24 D ec 2 02 5 2 0 2 5 2 8 7 3 3 1 2 4 D e c 2 0 2 5 b u s i n t e r f a c e 4 0 6 A 2 0 2 t r a n s m i t t e r U p s t r e a m c o n t r o l U p s t r e a m e n a b l e Downstream control c o n t r o l c i r c u i t b u s i n t e r f a c e E l e c t r o n i c p r o c e s s o r D o w n s t r e a m D o w n s t r e a m e n a b l e t r a n s m i t t e r D o w n s t r e a m

The present disclosure is directed to a light-signal communication receiver device including a photo-receiving diode configured to generate a current signal on a first node from a received light signal, a preamplifier configured to convert the current signal on the first node into a voltage signal on a second node, and a differential amplifier including a first input connected to the first node and a second input connected to a third node coupled to the second node via an adjustment circuit. The adjustment circuit is configured to offset the level of the voltage signal of the second node, on the third node, in a controlled manner by a control signal.

This invention belongs to the field of space laser communication and deep space exploration technology, and discloses an integrated detection device for space laser communication monitoring and interaction. The device includes a main body, on which are integrated a solar panel, a navigation imaging device, a communication antenna, a communication receiver, a radar, a landing support, and functional components for communication monitoring, environmental perception, and interactive operation. This invention forms a closed-loop system through electrical, signal, and mechanical connections, enabling simultaneous execution of multiple tasks, significantly improving the device's space operation efficiency, reducing the load pressure on space launch vehicles, and adapting to the space constraints of on-orbit operations. The communication antenna and receiver achieve bidirectional signal interaction through a high-speed laser communication module and are linked with the navigation imaging device and environmental sensors to ensure stable transmission and status monitoring of laser communication signals, which is beneficial for practical applications and operations.

A fall monitor has a first wireless communications receiver and a second wireless communications receiver. The second receiver receives wireless communications according to a different communications protocol than the first receiver. A fall detection pad includes a wireless communications module having a first pad transmitter configured to communicate with the first receiver to transmit a pairing communication when the fall detection pad is placed in proximity to the first receiver and a second pad transmitter configured to communicate with the second receiver when the fall detection pad is paired with the fall monitor display unit to transmit the fall alarm communication when the fall detection pad determines that a patient has removed pressure from the fall detection pad. A clinician key may be provided that is configured to communicate with the first receiver to provide a hold status for the alarm signal of the display unit.

A context communication system includes an external device including a communication receiver and an electronic control unit (ECU). The ECU includes data processing hardware and memory hardware that stores actions and action settings. The data processing hardware includes a contextual communication feature having a telematics system configured to detect the external device and a contextual event. The contextual communication feature is configured to selectively issue a contextual alert based on the detected external device and in response to a contextual event.

The invention discloses a sampling method and device for source synchronous communication, terminal equipment and a storage medium. The sampling method comprises the following steps: acquiring a Slave path initial delay value and a Master path initial delay value of a communication receiver; according to the initial delay value of the Slave path and the initial delay value of the Master path, window sweeping and ping-pong switching operation are repeatedly executed, when the time for executing the window sweeping and ping-pong switching operation is larger than a time threshold value, adjustment of a communication receiver is completed, and sampling of source synchronous communication is carried out based on the adjusted communication receiver. According to the invention, based on the burr-free data duration of the Slave path and the burr-free data duration of the Master path, the Slave path and the Master path are controlled to carry out switching output, thereby ensuring that the communication equipment can transmit stable burr-free transmission data, and improving the stability of data transmission when source synchronous communication is at an optimal sampling position.

To provide a communication receiver that can perform service-oriented communication in the whole of between servers and clients.SOLUTION: A communication transceiver 12 according to one aspect of the present disclosure is connected to a main control unit 11A of a communication device 10A. The communication transceiver includes a service control unit 121 and a service interface unit 122. The service control unit transmits a service presentation message to an electronic control device according to a first protocol of service-oriented communication based on first setting information set in response to an instruction from the main control unit. When service-oriented communication is established, the service interface unit converts communication data according to a second protocol received from the main control unit into communication data according to the first protocol based on second setting information set in response to the instruction from the main control unit, and transmits the converted communication data to the electronic control device.SELECTED DRAWING: Figure 2

The invention discloses an MIMO radar communication integrated waveform design method and system using frequency spectrum amplitude to implant information, and belongs to the technical field of radar systems and radar signal processing. The method comprises the following steps: establishing a detection waveform optimization model based on a power matching criterion according to priori knowledge of a radar target distribution airspace; according to a communication information implantation rule, determining an expected frequency spectrum amplitude of a synthetic signal of an MIMO array transmitted waveform in the direction of a communication receiver, and establishing a communication waveform optimization model based on error energy constraint on this basis; combining the two models to establish an MIMO radar communication integrated waveform relaxation optimization model; solving the dual-function integrated waveform optimization model under the constant modulus constraint based on a loop algorithm and an MM algorithm; and the communication receiver decodes the synthesized signal based on a frequency spectrum amplitude segmentation summation criterion to complete communication information transmission with the multifunctional electronic information system.

The present disclosure provides a method, apparatus, and device for compensating for carrier phase and IQ imbalance of a communication receiver, which can be applied to the field of communication signal processing technology. The method includes: sampling a received signal of a communication receiver to obtain a received signal sequence, wherein the communication receiver includes a transmitter and a receiver, and the receiver processes the transmitted signal from the transmitter to obtain a received signal; calculating the expectation and covariance matrices of the received signal sequence, and constructing a likelihood function corresponding to the received signal sequence based on the expectation and covariance matrices; derivatizing the logarithmic function of the likelihood function to obtain a set of estimation equations corresponding to multiple parameters to be estimated; iteratively solving the set of estimation equations according to a predetermined number of iterations to obtain multiple target estimation parameters corresponding to the multiple parameters to be estimated; and compensating the received signal sequence based on the target estimation parameters to obtain a target signal sequence.

The invention relates to a wireless communication receiver and a signal receiving control method thereof, and belongs to the technical field of wireless communication signal processing. According to the invention, before signal synchronization processing is carried out on the signal received by the wireless communication receiver, signal detection is carried out on the signal received by the wireless communication receiver, whether the received signal is an effective signal is determined, and signal synchronization processing is started only when the effective signal is determined. And the problem of high dynamic power consumption caused by continuous operation of signal synchronization processing is avoided. Meanwhile, when correlation calculation is carried out in signal detection, quantization compression is carried out on the received signal and a local reference sequence respectively, so that multiplication operation in correlation calculation is simplified into shift operation, the calculation amount and overturning of a combinational logic circuit are reduced, and power consumption of a receiver in a standby state is reduced.

This invention discloses a short-window gamma-gamma turbulence parameter prediction method for space-to-ground laser communication, belonging to the technical field of space-to-ground laser communication and atmospheric turbulence channel parameter prediction. This method addresses the problems of traditional methods, such as strong dependence on long observation windows, significant degradation in prediction accuracy under short-window scenarios, and insufficient robustness under low signal-to-noise ratio conditions. It establishes a short-window observation model for the space-to-ground optical link and a gamma-gamma channel statistical model, constructs time-dependent short-window training data, and designs a short-window gamma-gamma network. Temporal features are extracted through a convolutional backbone, and a scintillation exponential physical regularization auxiliary head is used to achieve joint parameter prediction under physical constraints, outputting predicted gamma-gamma distributed parameters. This method can achieve high accuracy and good stability in parameter prediction under short observation windows and low signal-to-noise ratio conditions, and can be used for turbulence channel state characterization at the space-to-ground laser communication receiver.

An image display device is disclosed in which electrical connection to a rotary body is reliably maintained during rotation of the rotary body and supply of power and transmission and reception of a signal are stabilized. Since transmission and reception of a signal between a communication transmitter and a communication receiver are implemented through a cavity formed in a motor, introduction of an external signal is blocked, and thus security and control stability are ensured. Even when a rotary module rotates at a high speed, damage thereto due to friction is prevented, and thus the durability thereof is ensured. Rotation of the rotary module is stabilized through structural stabilization.