18 results about "Bandwidth efficient" patented technology

The invention discloses a high-speed Ethernet communication node secondary queue message receiving method and a high-speed Ethernet communication node secondary queue message receiving system, which enable a high-speed Ethernet communication node to send messages by adopting multiple links, improve independence among subsystem applications in a multi-core and multi-task scene, avoid mutual exclusion operation of critical resources of a sending queue, and improve the service life of the high-speed Ethernet communication node. The execution efficiency of a message sending interface is optimized, and the network throughput rate and the network bandwidth of the high-speed Ethernet can be developed; the blocking operation of each partition application in the partition system caused by the message sending access sending queue and descriptor is effectively avoided, the execution time of the partition application message sending is further optimized and improved, the receiving buffer area is managed by adopting the receiving idle FIFO queue, the receiving buffer area does not need to be dynamically managed by applying for a large buffer pool, and the message sending efficiency is improved. Therefore, the overhead of memory resources is reduced, and the system overhead caused by applying or releasing the receiving buffer area is also avoided; and the network communication bandwidth and throughput are improved, and the capacity expansion and speed increase of the network are facilitated.

This invention discloses a high-efficiency power amplifier with extended harmonic modulation bandwidth and its modulation method. A harmonic control circuit unit is added to the input terminal of the final stage die of the power amplifier. The extended harmonic control unit includes a second harmonic modulation circuit and a first parasitic element of the power amplifier back hole. The second parasitic element of the source back hole of the final stage transistor participates in modulation. Considering the parasitic effect of the power amplifier and the back hole at the source of the die, the harmonic modulation bandwidth is further widened by adjusting the harmonic control circuit unit, which effectively improves the working efficiency of the amplifier.

The invention belongs to the technical field of pipeline construction, and discloses a pipeline construction process based on digital-intelligent collaborative scheduling, which breaks through the limitation of single-point monitoring and static data processing in the prior art through a cross-domain fusion technology of federated learning and space-time compressed sensing: the problem of privacy disclosure in multi-subject data sharing is solved through federated learning, and the probability of privacy disclosure is lowered; low-bandwidth efficient transmission of high-dimensional data is achieved through space-time compressed sensing, the real-time performance of digital twin is improved to the millisecond level through cooperation of space-time compressed sensing and space-time compressed sensing, a dynamic data basis is provided for multi-subject collaborative decision making, the problems of'equipment waiting for materials', 'sudden shutdown 'and the like are solved through an equipment intelligent connection dispatching system through calculation power dynamic allocation and a fault early warning model, and the system is high in practicability. The resource utilization rate is obviously improved; distributed optical fiber sensing and AR remote processing are combined, the abnormal response period is greatly shortened, for example, when slope displacement exceeds the limit, the system can generate a repair scheme in an extremely short time and synchronously trigger field equipment linkage.

The invention discloses a gyrotron high-frequency interaction structure formed by continuous curves, which is characterized in that the gyrotron high-frequency interaction structure is composed of a cut-off section, an interaction section and an output section of a cubic spline difference fitting curve structure, and the curve slope at the joint of the cut-off section and the interaction section and the curve slope at the joint of the interaction section and the output section are consistent. Through the high-frequency interaction structure, a higher harmonic working mode can be excited in a terahertz frequency band, and the output characteristics of high efficiency and wide bandwidth are achieved. Under the working condition of a high-order axial mode, the gyrotron has stable output power and linear frequency change in the frequency adjusting process, and the effective working bandwidth is remarkably improved. The problems of power fluctuation and frequency hopping of the gyrotron under the working condition of a high-order axial mode are effectively solved, so that an excellent output effect is obtained.

Various methods for managing and / or monitoring new experiences of an Automated Driving System, ADS, of a vehicle are disclosed. In one example, an ADS experience library is used as training data for an autoencoder on-board the vehicle. A data stream representing driving experiences encountered by the vehicle as it is being driven around is suitably segmented and passed through the autoencoder. The output of the autoencoder exaggerates the reconstruction error for any data in a data segment not included in the training data set. This enables anomalous behavioural data indicative of a new experience encountered by a vehicle when it is being driven around to be identified in the data stream passed through the autoencoder, making it possible to send just the anomalous behavioural data to a back-end fleet server configured to monitor and manage a fleet of vehicles in a timely and bandwidth efficient manner.

The scheme discloses a POS machine miniaturization large-bandwidth high-efficiency antenna, which uses a small antenna size to excite a low-frequency working mode of a mainboard, uses components such as a camera FPC and an NFC coil which are not conducive to the antenna to expand the frequency, realizes better low-frequency bandwidth, changes the disadvantage into an advantage, optimizes the shape of the antenna working at a high frequency and places the antenna at a suitable position to excite the NFC coil and the rear camera FPC to generate a low-frequency resonance, thereby expanding the antenna bandwidth to a low frequency enough to cover common low-frequency communication frequency bands, and finally realizes a very small space-occupied and very high-efficiency large-bandwidth antenna.

Disclosed herein are methods and systems for a memory and network bandwidth efficient processes for managing the movement of assets during distributed services execution by a distributed services system. In one example, an event message is received that specifies configurations of an asset movement. Next, different aggregation processes are performed at different time periods based on the event message configurations, to group and net asset movements to reduce the frequency and number of resulting asset movements, and to enable freeing of distributed services system memory used to store events after aggregation is performed. Next, a planning system of the distributed services system generates a planned action to move assets between accounts based on the aggregation process results. An action executor of the distributed services system executes the planned action causing the movement of the assets.

The embodiment of the invention discloses a time slot allocation method and system. The method comprises the following steps: in response to a time slot allocation instruction, obtaining current occupation states of a plurality of time slots, determining a service demand of a first power service, and predicting a time slot demand of the first power service based on the service demand; according to the time slot demand and the current occupancy state, a target allocation strategy is determined from a preset idle time slot allocation strategy and an occupied time slot allocation strategy, the idle time slot allocation strategy is a strategy for allocating idle time slots in the multiple time slots, and the occupied time slot allocation strategy is a strategy for allocating occupied time slots in the multiple time slots; the occupied time slot allocation strategy is a strategy for recovering and allocating occupied time slots in a plurality of time slots; and determining a target time slot allocated to the first power business from the plurality of time slots based on the target allocation strategy. According to the technical scheme provided by the embodiment of the invention, resources can be fully utilized, and key service bandwidth can be effectively guaranteed.

The present disclosure provides a data transmission method and device, electronic equipment and computer readable storage medium, and relates to the technical field of network. The method comprises: obtaining job data, splitting the job data to obtain a plurality of sub-job data; encapsulating the plurality of sub-job data respectively to obtain a plurality of sub-job data packets; determining a computing power routing node for processing each sub-job data packet, and any sub-job data packet corresponds to one computing power routing node; sending each sub-job data packet to the corresponding computing power routing node; and receiving a response data packet returned by each computing power routing node. The present embodiment can efficiently transmit the job data, thereby saving the network bandwidth and effectively reducing the occupancy rate of the network resources of the user terminal. Furthermore, the user gateway is used to split the job data, which can further save the computing resources of the user terminal.

The application provides a semiconductor laser and a regulation method thereof. The semiconductor laser comprises a substrate, an echo wall microcavity arranged on the substrate, a projection profile of the echo wall microcavity on the substrate is composed of a plurality of curves, the plurality of curves make photons in the echo wall microcavity form a loop after multiple total reflections, and an ohmic contact layer arranged on the echo wall microcavity, an ohmic contact window is formed on the ohmic contact layer, the ohmic contact window makes the ohmic contact layer inject a non-uniform current into the echo wall microcavity, and the non-uniform current is used for regulating a quantity ratio of different mode photons in the echo wall microcavity. The semiconductor laser of the application can increase a direct modulation bandwidth of the semiconductor laser by adjusting a curve parameter of the echo wall microcavity to adjust a mode interval and an intensity difference, and effectively improve a high-speed performance of the laser.

The application discloses a kind of active power filter control method and system suitable for frequency fluctuation, the decimal part of the sampling number is corrected using FIR filter based on Lagrange interpolation method, the bandwidth after frequency fluctuation is improved using variable bandwidth adjustment internal model control (VBAI) technology, effectively solve the problem that control effect is seriously reduced caused by the change of sampling number of traditional repetitive control caused by power grid frequency fluctuation, ensure the stability of control gain under frequency fluctuation.

The invention relates to a micro-cavity modulator and a design method thereof, in particular to an electro-optical co-optimization design method of a high-bandwidth micro-cavity modulator based on an inductance peaking effect and the high-bandwidth micro-cavity modulator, and solves the problem that the existing design method of the micro-cavity modulator does not combine the inductance peaking effect with the photoelectric characteristic of the micro-cavity modulator. And the effective peaking effect and the effective bandwidth expansion of the micro-cavity modulator are difficult to realize at the same time. According to the method, the micro-cavity modulator is equivalent to the optical equivalent circuit model, so that the micro-cavity modulator and the inductor can be designed in the same simulation environment, and overall co-optimization of an electrical device and an optical device is realized; meanwhile, through deep coupling of the inductance peaking effect and the optical equivalent circuit model of the micro-cavity modulator, the dual targets of bandwidth expansion and group delay leveling of the micro-cavity modulator are achieved at the same time.

The invention relates to a multi-tenant isolation control system based on QUIC proxy optimization, and belongs to the field of computer networks. The system comprises an access layer, a control layer and a data layer, the access layer is responsible for protocol processing, the control layer realizes strategy management, the data layer completes isolated forwarding, and the system realizes tenant identity binding and connection management, a tenant resource isolation method, a tenant personalized strategy and tenant monitoring and recording. Through the kernel-level isolation technology, the cross-tenant resource interference rate is effectively reduced, the bandwidth of key tenants is effectively guaranteed, various scene requirements are met, the multi-tenant transmission performance is improved, personalized requirements are supported to rapidly fall into the ground, the monitorability and compliance are enhanced, and the resource utilization rate is optimized.

The invention relates to the technical field of microwave communication, and discloses a high in-band rejection broadband band elimination filter. The filter is based on a micro-strip resonator, and a micro-strip open-circuit branch knot is loaded in the middle of the micro-strip resonator to form an axial symmetry structure. The structure is divided into three groups of parts with the same characteristic impedance along a symmetry axis, and the working bandwidth and the in-band suppression level of the filter can be flexibly adjusted by independently adjusting the impedance ratio of each group. The structure is simple, narrow slits do not need to be machined, and the machining difficulty and cost are remarkably reduced. Compared with the prior art, about 90% of relative working bandwidth can be obtained while 40dB high in-band suppression is realized, and the problem that high in-band suppression and broadband performance are difficult to consider at the same time is effectively solved.

The invention discloses a high-efficiency power amplifier for expanding harmonic modulation bandwidth and a modulation method thereof, a harmonic control circuit unit is added to the input end of a final-stage tube core of the power amplifier, and an expansion harmonic control unit comprises a second harmonic modulation circuit and a first parasitic element of a back hole of the power amplifier. The second parasitic element of the source electrode back hole of the last-stage transistor participates in modulation, the parasitic effect of the back holes at the power amplifier and the source electrode of the tube core is considered, the harmonic modulation bandwidth is further expanded by adjusting the harmonic control circuit unit, and the working efficiency of the amplifier is effectively improved.

The invention discloses a short packet wireless communication bit error rate-time delay cross-layer analysis method, which is oriented to a short packet URLLC scene under a single-user Nakagami-m block fading channel, considers the random arrival and queuing time delay of a service, and realizes the cross-layer analysis of the bit error rate-time delay of the short packet wireless communication based on a finite block length theory and an effective bandwidth / effective capacity theory. Under the condition of limited block length coding, the reachable rate under the bit error rate constraint is embedded into the service process, and the approximate relation between the bit error rate and the delay violation probability is deduced by combining statistical QoS analysis means such as effective bandwidth / effective capacity and the like. According to the method, an executable calculation process of system parameters-reachable service capability / maximum bearable arrival rate-delay violation probability is established, so that the dependence on large-scale simulation is reduced while the evaluation accuracy is ensured, and a basis is provided for engineering test calculation and parameter configuration of the short packet URLLC system under strict delay and ultrahigh reliability requirements.

The invention relates to the technical field of power system relay protection, discloses a transformer transient waveform full-bandwidth reduction method and system, and aims to accurately represent amplitude-frequency characteristics and bandwidth limitation of a transformer by constructing a frequency domain transfer function model of the transformer. After a time domain waveform collected by a mutual inductor is converted into broadband frequency domain information, inverse operation is carried out on the broadband frequency domain information and a transfer function model subjected to regularization processing, signal attenuation outside an effective bandwidth is compensated, high-frequency and low-frequency transient components filtered or distorted by hardware are recovered, and therefore the bandwidth bottleneck of a physical sensor is broken through. And then, carrying out inverse transformation on the compensated broadband frequency domain information to obtain a high-fidelity reduced time domain waveform signal. The waveform signal is closer to a real fault signal in the aspects of shape, amplitude and transient characteristic time sequence, the problem that full-bandwidth effective detection is difficult to realize in the process of detecting the fault waveform by using a mutual inductor is solved, and an accurate data basis is provided for subsequent fault identification and traceability analysis thereof.

This invention provides a networked radar decision-making method based on an improved MADDPG, which balances resolution and anti-interference performance, and relates to the field of radar anti-interference technology. First, an adversarial scenario is constructed between the networked radar and a multi-point broadband frequency-sweeping jammer, signal distribution is analyzed, and overlap coefficients are established. Second, the radar cooperative scheduling process is modeled as a multi-agent partially observable Markov decision process, constructing a composite reward function that balances detection resolution and anti-interference performance. Then, a multi-agent deep deterministic policy gradient algorithm is used for network training, and a self-attention mechanism is introduced in the value evaluation to extract mutual interference topology features, obtaining the frequency agility strategy for each radar. This invention overcomes the limitations of traditional discrete frequency hopping, enabling the radar to adaptively utilize fragmented spectrum to elastically expand bandwidth under conditions of no online communication, effectively achieving a comprehensive improvement in high-precision detection and high anti-interference survivability.