Abstract: The present disclosure provides a synthetic aperture radar (SAR) image target detection method. The present disclosure takes the anchor-free target detection algorithm YOLOX as the basic framework, reconstructs the backbone feature extraction network from the lightweight perspective, and replaces the depthwise separable convolution in MobilenetV2 with one ordinary convolution and one depthwise separable convolution. The number of channels in the feature map is reduced by half through the ordinary convolution, features input from the ordinary convolution are further extracted by the depthwise separable convolution, and the convolutional results from the two convolutions are spliced. The present disclosure highlights the unique strong scattering characteristic of the SAR target through the attention enhancement pyramid attention network (CSEMPAN) by integrating channels and spatial attention mechanisms.

Abstract: A positioning method includes receiving, by a backscatter end, a first signal sent by a first communication device; modulating, by the backscatter end, the first signal based on a second reference signal modulation sequence or a third reference signal modulation sequence to obtain a second signal; and sending, by the backscatter end, the second signal to a second communication device. The second reference signal modulation sequence is an orthogonal sequence determined based on binary phase shift keying BPSK modulation information. The third reference signal modulation sequence is determined based on the second reference signal modulation sequence.

Abstract: This application discloses a positioning sensing method and apparatus, a sensing measurement method and apparatus, a terminal, and a network-side device. The positioning sensing method of embodiments of this application includes: obtaining, by a computing node, a sensing measurement quantity result, where the sensing measurement quantity result is obtained by performing, by a sensing node, signal processing on a first signal that is sent by the sensing node itself and that is reflected by a to-be-sensed target; and determining, by the computing node, a positioning sensing result of the to-be-sensed target based on the sensing measurement quantity result.

Abstract: The application discloses a positioning method and device and a communication device. The positioning method includes: A backscatter end receives a first signal sent by a first communication device; the backscatter end modulates the first signal based on a second reference signal modulation sequence to obtain a second signal; the backscatter end sends the second signal to a second communication device, where the second reference signal modulation sequence is an orthogonal sequence determined based on on-off keying (OOK) modulation information.

Abstract: A GIS partial discharge diagnosing method, a model training method, a device and a system are disclosed. Sensor modules are in communication with each other, so that sensor network position distribution data of each sensor module in a wireless transmission network can be determined. In a training process of a partial discharge diagnosing model, a spatial-temporal feature of the partial discharge is introduced, so that the trained partial discharge diagnosing model is adaptive to different GIS equipment and different sensors layout solutions, and has better model universality and applicability, thus greatly saving a training time of the model and expediting the deployment of the partial discharge diagnosing model. Moreover, the model trained in the present disclosure accounts for the relationship between the position where partial discharge occurs and the sensor network position distribution.

Abstract: A target positioning sensing method and apparatus, a communication device, and a storage medium. The target positioning sensing method includes: performing, by a first device, sensing measurement on a sensing target, to obtain a first measurement quantity result of a first measurement quantity of a dynamic reflection path of a first signal, where the first measurement quantity includes: at least one of a reflection path Doppler frequency or a reflection path length change speed, and the first signal is a signal sent by a second device to the first device; and sending, by the first device, the first measurement quantity result, where the first measurement quantity result is used for determining a positioning sensing result of the sensing target.

Abstract: This application discloses a positioning sensing method and apparatus, and a related device. The positioning sensing method in embodiments of this application includes: performing, by a first sensing device, azimuth power spectrum APS measurement on a sensing target, to obtain a first APS measurement result of a dynamic reflection path of a first signal, the first APS measurement result being used for determining a positioning result of the sensing target; and performing, by the first sensing device, a first operation or a second operation based on the first APS measurement result, where the first operation includes sending the first APS measurement result, and the second operation includes determining the positioning result of the sensing target according to the first APS measurement result and at least one received second APS measurement result.

Abstract: Embodiments of this application provide a power control method, a communication apparatus, and a communication system. The method includes: determining whether a first condition is met, where the first condition includes that a time-frequency resource for sending a first beam and a time-frequency resource for sending a second beam overlap, a ratio of interference of the first beam to the second beam to noise floor of a receiver is greater than a first threshold, and a ratio of interference of the second beam to the first beam to the noise floor of the receiver is greater than the first threshold; and reducing transmit power of the first beam and transmit power of the second beam when the first condition is met.

Abstract: A transmit power determining method includes: determining, by a first device, target transmit power of a first signal based on echo signal quality or a parameter of the first target, where the target transmit power indicates sending of the first signal at a second moment; and the first device detects an echo signal of the first signal sent at a first moment to obtain the echo signal quality or the parameter; or the first device receives the echo signal quality or the parameter from a second device, and the second device detects the echo signal of the first signal sent at the first moment to obtain the echo signal quality or the parameter of the first target, where the second moment is after the first moment; and the parameter of the first target includes at least one of an RCS and distance information of the first target.

Abstract: A titanium alloy blade tip with a wear-resistant protective coating and a preparation method thereof are provided. The method includes: (1) spraying MCrAlY alloy powder on a surface of a titanium alloy blade tip by high velocity oxygen fuel (HVOF) spraying at a spraying distance of 300-400 mm to obtain the titanium alloy blade tip with a MCrAlY layer on the surface; where M is one of Ni and NiCo; (2) pre-plating Ni at a current density of 4-10 A/dm2; (3) placing the pre-plated titanium alloy blade tip in a Watt solution, covering a surface of the pre-plated titanium alloy blade tip obtained in the step (2) with abrasive particles, and then performing composite electroplating at a current density of 0.5-2 A/dm2. In the method, the wear-resistant protective coating with the high adhesion strength is prepared on the titanium alloy blade tip, and the wear-resistant protective coating has good wear resistance.

Abstract: This disclosure describes, generally, a modified form of CD16, genetically-modified cells that express the modified CD16, and methods that involve the genetically-modified cells. The modified form of CD16 can exhibit increased anti-tumor and/or anti-viral activity due, at least in part, to reduced susceptibility to ADAM17-mediated shedding upon NK cell stimulation.

Abstract: Disclosed are a wireless sensing method and apparatus, a network-side device, and a terminal, belonging to the technical field of communications. The wireless sensing method includes: A first device backscatters a sensing signal to a wireless sensing signal receiver. The sensing signal is from a wireless sensing signal transmitter.

Abstract: This application discloses a wireless sensing method and apparatus, a network-side device, and a terminal. The wireless sensing method of embodiments of this application includes: backscattering, by a first device, a sensing signal to a target network node, where the sensing signal comes from the target network node.

Abstract: A wireless sensing method and apparatus, and a network-side device. The wireless sensing method in embodiments of this application includes: backscattering, by a first device, a target sensing signal to a wireless sensing signal receive end, where the target sensing signal comes from a wireless sensing signal transmit end, the wireless sensing signal transmit end includes a first terminal or a first network-side device, and the wireless sensing signal receive end includes a second network-side device.

Abstract: A backlight module includes: a first optical element and a fixing frame arranged around the first optical element. The fixing frame includes a first edge frame and a second edge frame that are oppositely arranged, and a third edge frame and a fourth edge frame that are oppositely arranged. The side of each edge frame of the fixing frame facing the first optical element is provided with a plurality of adhesive tapes that are independent of each other and extend in an extension direction of the each edge frame. The first optical element is fixed to the fixing frame through the adhesive tapes.

Abstract: A resource selection method is provided. The resource selection method includes sending, by a higher layer of a first terminal, first information to a physical layer of the first terminal. The first information is used for assisting the physical layer of the first terminal in selecting candidate resources for sidelink transmission. The first information includes second information related to sidelink Discontinuous Reception (DRX) of a second terminal. The second terminal is a peer terminal for the first terminal to perform sidelink transmission. The resource selection method further includes receiving, by the higher layer of the first terminal, candidate resources reported by the physical layer of the first terminal. The resource selection method also includes selecting, by the higher layer of the first terminal, a transmission resource from the candidate resources reported by the physical layer of the first terminal.

Abstract: A base station device that allocates wireless resources to a terminal device and performs wireless communication with the terminal device using the allocated wireless resources, the base station device includes, deciding controller that decides, out of a plurality of retransmission patterns, a retransmission pattern for performing retransmission of data to the terminal device, in accordance with a communication state of wireless communication, and a transmitter that performs initial-time transmission processing of transmitting a control signal for wireless resource allocation control, and a data signal for data transmission including data to be transmitted to the terminal device, including retransmission pattern information relating to the retransmission pattern that has been decided, and retransmission processing of retransmitting the data signal including data to be transmitted to the terminal device, in accordance with the retransmission pattern that has been decided.

Abstract: A wireless communication device includes: a reception controller that receives a signal transmitted to a plurality of wireless communication devices including the wireless communication device, and acquires data included in a reception signal; a detector that detects a retransmission request for requesting retransmission of the data, the retransmission request being transmitted by another wireless communication device by using a channel in accordance with a position of the other wireless communication device, and that identifies the position of the other wireless communication device based on a channel in which the retransmission request has been detected; a determination unit that determines whether or not to relay data to the other wireless communication device in accordance with a distance to the position identified by the detector; and a transmitter that transmits the data acquired by the reception controller to the other wireless communication device when the determination unit determines to relay data.

Abstract: A signal transmission method and apparatus, and a device, belonging to the technical field of communications.

Abstract: The present disclosure relates to a method and system for pavement structural performance evaluation based on long-range laser vibration measurement. The method can more accurately evaluate the structural performance of the pavement by detecting the actual deflection value of the pavement during aircraft operation; By obtaining real-time deflection data of the airport runway, it is possible to detect changes in the structural performance of the airport runway in the long term without affecting the normal operation of the airport runway. The present invention has strong anti-interference ability, stable detection results, and can achieve non-contact, large-scale, and high-precision measurement of airport pavement deflection.