559 results about "Signal synthesis" patented technology

The invention provides an unmanned aerial vehicle multi-system navigation decoy system based on intelligent algorithm optimization, and relates to the technical field of unmanned aerial vehicle processing, a sensing module comprises a cognitive radar, a photoelectric / infrared sensor, a magnetic and acoustic sensor and an electromagnetic environment scanning device, and a digital twinning and countermeasure AI module comprises a digital twinning model module and a countermeasure AI engine; the cross-domain multi-source cheating module comprises a multi-system navigation signal synthesis module and a sensor-level cheating module; the reconfigurable intelligent antenna array comprises a metamaterial unit, a real-time beam controller and a biological heuristic intelligent algorithm module, and the system security hiding module comprises an encryption access control unit, a micro-power frequency expansion and hopping unit and a redundant backup and disaster recovery unit. The response time of the system from detection to interference can be remarkably shortened by performing high-fidelity simulation on the flight control logic of the unmanned aerial vehicle and the actual electromagnetic environment in the digital twin environment and combining the hybrid decoy strategy generated by the adversarial AI.

The invention discloses a target echo signal simulation method and system with unmanned aerial vehicle rotor frequency spectrum characteristics, and the method comprises the steps: obtaining an original radar echo signal, carrying out the preprocessing and feature enhancement, and obtaining an enhanced rotor feature signal; sequentially performing dynamic component decomposition, nonlinear phase coupling analysis, adaptive parameter estimation and trajectory prediction to generate probability distribution of a feature trajectory; probability feature space mapping and dynamic feature fusion are carried out to obtain a fusion feature vector; constructing a nonlinear dynamic model, and performing adaptive signal synthesis to generate a synthesized signal; performing quality evaluation on the composite signal to generate a quality evaluation report and an optimization parameter set; based on the quality evaluation report and the optimization parameter set, performing multi-target parameter optimization and monitoring system performance to obtain a performance evaluation result; system parameters are updated, stability analysis is carried out, and a system stability report and regulation and control suggestions are generated. According to the invention, the calculation efficiency and the simulation precision are both improved.

The invention relates to the technical field of light source control, and discloses a multispectral LED detection light source synchronous control method, device and equipment and a storage medium. The method comprises the following steps: carrying out double-interlaced spectral data sampling on a light source, and carrying out baseline extraction and compensation correction on preset three-dimensional spectral parameters; mapping of multi-dimensional mixed domain time sequence characteristics and decomposition of working characteristic tensors are carried out on the corrected calibration spectrum data, and modulation of recursive phases and group delay compensation calculation are carried out; performing crosstalk compensation of a multi-stage LED light source channel and suppression reconstruction of a multi-harmonic component on the light source phase compensation vector subjected to compensation calculation to generate light source correction control data; and performing light source driving signal synthesis on the light source correction control data to obtain a light source driving waveform sequence, and performing light source channel distribution and synchronous adjustment on the light source driving waveform sequence to generate a light source synchronous control result of the target multispectral LED detection light source. According to the invention, high-precision synchronous control of the multispectral LED detection light source is realized.

A low voltage ride through control method for a grid-forming inverter based on dynamic internal potential adjustment comprises the following steps: detecting a voltage per unit value of a grid-connected point in real time, and comparing the voltage per unit value with a threshold value to judge a voltage drop event and trigger low voltage ride through control; dynamically calculating active and reactive power reference values through a reactive compensation equation and an active current limiting equation according to the voltage amplitude and the power reference value before falling during the ride-through period; inputting the active reference value into a virtual rotor motion equation to generate a reference phase, and outputting a phase reference signal in combination with a dual-mode phase compensation controller; superposing the reactive reference value with the reference voltage through a reactive voltage regulating ring to generate a voltage amplitude reference signal; synthesizing an internal potential according to the phase and the amplitude reference signal, and obtaining an inductive current reference value through virtual impedance control and current amplitude limiting; and finally, a driving signal is generated through the current inner loop controller and the modulation module. According to the invention, overcurrent can be effectively inhibited, rapid reactive power support is provided, and synchronous stability and smooth transition in a fault period and a recovery process are ensured.

The invention discloses a communication anti-interference method and device of a navigation system and electronic equipment. The method relates to the communication field of the navigation system, and comprises the following steps: acquiring a first signal received by a satellite communication antenna of the navigation system and second signals received by a plurality of sampling antenna units in a preset antenna array; performing band-pass filtering on the first signal and the plurality of second signals to obtain a filtered first signal and a plurality of filtered second signals; performing nonlinear transformation processing on the plurality of filtered second signals to obtain interference cancellation signals; the filtered first signal and the interference cancellation signal are subjected to signal synthesis, a cancellation output signal is obtained, and the average power of the cancellation output signal is smaller than or equal to preset power. According to the invention, the technical problem of poor communication anti-interference capability of a navigation system in the prior art is solved.

The invention discloses a differential signal synthesis circuit of a double-IQ mixer, which belongs to the technical field of radio frequency microwave testing and comprises two single-ended IQ mixing modules, a 180-degree phase shift module and an in-phase combination module or a power division module. The single-ended IQ frequency mixing module is used for up-converting the single-ended IQ baseband signal to radio frequency or down-converting the radio frequency signal to the single-ended IQ baseband signal; the 180-degree phase shift module is used for converting an input signal into two paths of signals with a phase difference of 180 degrees; and the power division module is used for converting the radio frequency input signal into two paths of signals with the phase difference of 0 degree. According to the invention, the IQ mixer with a differential structure is constructed, so that the microwave band of the IQ mixer is comprehensively improved in the index aspects of local oscillator leakage, even-order component suppression, common-mode interference suppression, signal-to-noise ratio and the like; according to the invention, single-ended IQ mixers with various types and complete frequency bands can be constructed into a differential structure form, and signal indexes in numerous application scenes are improved.

The invention discloses a frequency domain ground penetrating radar transmitting source coding and receiving signal synthesis method and system. The method comprises the following steps: constructing a frequency domain coding continuous wave ground penetrating radar transmitting signal by extracting amplitude and phase information of multiple frequency points of a time domain ultra-wideband transmitting pulse; adopting a fast forward modeling method based on impulse response to realize forward modeling of a coding source emission signal of the typical geoelectric model; in-phase components and orthogonal components of all frequency points are extracted, frequency responses are synthesized into responses of quasi-time-domain transmitted pulses through an inverse Fourier transform method, the high resolution equal to that of time-domain ultra-wideband transmitted signals is obtained, and higher anti-noise performance is achieved. According to the invention, the amplitude phase coding continuous wave transmitting signal is adopted, so that the frequency spectrum shaping of the quasi-time domain pulse of the transmitting frequency spectrum is realized, the resolving power of the synthetic signal is improved, and a theoretical basis is laid for signal synthesis of frequency domain ground penetrating radar hardware design.

The invention belongs to the technical field of high-orbit satellite communication. A ground station antenna S, Q, V multi-band dual-polarization feed source implementation device comprises an S-band dual-polarization feed source network, the S-band dual-polarization feed source network comprises a polarization switch, first duplexers, first sum-difference networks, a polarizer assembly and an S feed source horn, the polarization switch is connected with the two first duplexers, each first duplexer is connected with the first sum-difference network, and the S feed source horn is connected with the second duplexers. The output of one first sum-difference network is connected to a left-hand polarization port of each polarizer assembly, the output of the other first sum-difference network is connected to a right-hand polarization port of each polarizer assembly, and each polarizer assembly is connected with an S feed source horn; the Q / V frequency band feed source network comprises two second duplexers which are respectively connected with a quadrature device, a polarizer is respectively connected with the quadrature device and a tracker, and the tracker is respectively connected with a difference signal synthesis network and a Q / V corrugated horn; and the S feed source horns are arranged around the Q / V corrugated horns. And the optimal utilization effect of space and signal receiving and transmitting efficiency is achieved.

The invention discloses a dual-channel millimeter wave transmitter, a receiver and a transceiver system. The transmitter comprises a baseband signal processing circuit, a local oscillator signal processing circuit and a radio frequency front-end circuit comprising a high-frequency channel power amplifier, a low-frequency channel power amplifier and a signal synthesis switching circuit. The radio frequency front-end circuit selectively outputs signals of a high-frequency channel or a low-frequency channel through the signal synthesis switching circuit, and a current adjusting circuit is arranged in the baseband signal processing circuit and used for adjusting mismatch of a switching tube in the mixer. The disclosure also provides a dual-channel millimeter wave receiver and transceiver system based on the same concept. According to the invention, the problem of performance bottleneck of a single-channel transceiver in broadband application is solved, the system linearity is improved, the processing capability of high-order modulation signals is improved, and high power efficiency and high integration level are maintained through optimized circuit design.

The invention provides a portable medium-long wave active receiving antenna structure comprising a tripod used for supporting an antenna; the flange seat is mounted on the tripod; an antenna body is mounted on the flange seat, an antenna outer cover and an antenna upper cover are arranged outside the antenna body, and the antenna body comprises an antenna signal synthesis structure and a magnetic bar antenna assembly mounted at the top of the antenna signal synthesis structure. The magnetic bar antenna structure is adopted, so that the structure is greatly reduced, and the magnetic bar antenna is of a straight-tube-shaped structure on the whole, is extremely convenient to carry in the using process, can be carried by one hand, and is simple to erect, convenient to disassemble and assemble and high in maintainability.

The invention discloses a dynamic electromagnetic shielding method for a complex electromagnetic environment and a shielding device thereof, and the method comprises the steps: obtaining real-time voltage data in the complex electromagnetic environment, carrying out the voltage feature analysis, outputting a feature vector of a real-time voltage signal, and analyzing the type of an interference source of a current electric field according to the feature vector, performing interference trend time sequence prediction processing on the feature vector through a pre-trained LSTM model according to the interference source type to obtain a time domain voltage value and a phase deviation value, and performing composite loss coefficient calculation on the time domain voltage value and the phase deviation value to obtain a composite loss coefficient; and performing reverse offset signal synthesis processing on the voltage interference signal according to the calculated composite loss coefficient, performing coil dynamic activation processing on a preset multi-coil array according to the synthesized reverse offset signal, generating a directional offset magnetic field corresponding to the real-time electromagnetic interference, and performing electromagnetic offset shielding on the current electromagnetic interference. According to the invention, transient interference can be responded in time, and the electromagnetic shielding effectiveness can be improved.

This application provides a system for generating a drive signal and a method for generating a drive signal for driving a two-in-one device integrating a first component capable of generating sound and a second component capable of generating vibration. The system includes an audio signal pre-processing module, configured to perform low-frequency filtering and acoustic effect processing on an input signal according to a high-pass filtering parameter to obtain an audio signal; a vibration signal generation module, configured to generate a vibration signal based on an acoustic characteristic of the audio signal or a preset vibration library; a signal synthesis module, configured to superpose the audio signal with the vibration signal to output the drive signal; and an amplitude-limiting control module, configured to determine whether the audio signal and the vibration signal exceeds a maximum allowable range when superposed, and attenuate the audio signal and / or the vibration signal.

The invention belongs to the technical field of oil and gas well perforation, and relates to a high-speed communication method and system for single-core cable perforation. The method comprises the following steps: performing low-frequency modulation on underground perforation data; performing high-frequency modulation on underground logging data; synthesizing carrier signals; the driving power of the carrier synthesis signal is amplified, so that the carrier synthesis signal is transmitted to the ground end on the single-core cable; the ground terminal carries out carrier signal conditioning on the carrier synthesis signal and then carries out amplification processing; carrying out carrier signal separation, and respectively outputting a low-frequency modulation signal and a high-frequency modulation signal; and outputting perforation data and logging data. According to the invention, perforation signals and underground logging data can be transmitted on the single-core cable at the same time, and the exploitation efficiency of an oil-gas well is improved; according to the single-core cable perforation communication system, continuity and low delay characteristics of perforation operation signals are kept, discrete data can be selectively transmitted, the efficiency of single-core cable perforation communication is improved, and mutual influence of perforation or logging communication faults is effectively avoided.

The utility model relates to the technical field of frequency converters, in particular to a frequency converter protection circuit used for input open-phase and relay pull-in detection, which comprises a relay pull-in detection circuit, an input open-phase detection circuit and a signal synthesis circuit. The input end A of the NAND gate is connected with the relay pull-in detection circuit, the input end B of the NAND gate is connected with the input open-phase detection circuit, and the output end Y of the NAND gate is connected with the controller. Compared with a traditional detection circuit which only has high-level / low-level signals, the technical problems that in the prior art, two detection functions occupy two signal channels, the circuit is difficult to design, and cost is high can be effectively solved, and the advantage that the states of the two detection functions can be expressed only through the same signal line is achieved.

The invention discloses a photovoltaic optimization regulation and control method and device based on an MPPT technology, and particularly relates to the technical field of photovoltaic power generation control, and the method specifically comprises the following steps: S1, full-link operation state synchronous collection, S2, DC bus ripple feature extraction, S3, multi-source disturbance quantitative evaluation, S4, cooperative control parameter decision making, and S5, grid-connected signal synthesis modulation. A multi-source disturbance quantitative evaluation system is adopted, the irradiance change gradient, the frequency ratio and the switching noise contribution ratio are subjected to multi-dimensional fusion, a dynamic weight distribution mechanism is established, and parallel optimization of MPPT mode selection, disturbance step length adjustment and PWM phase shift angle is achieved through a cooperative control parameter decision architecture. A response delay bottleneck existing in a traditional serial decision mode is broken through, and a ripple compensation component is dynamically injected while stable output of fundamental current is maintained based on a grid-connected signal modulation strategy of vector synthesis.

The invention discloses an intermediate frequency electro-therapeutic apparatus, which comprises a controller and a waveform synthesis circuit, and is characterized in that the waveform synthesis circuit comprises a first amplitude adjusting circuit, a second amplitude adjusting circuit and a synthesis adjusting circuit, and the controller generates a first PWM signal according to the overall amplitude information; the first amplitude adjusting circuit performs amplitude modulation processing on an input original waveform according to the first PWM signal to generate a first analog waveform signal; the controller obtains amplitude information corresponding to the frequency of the modulation waveform by using the phase accumulator, and generates a second PWM signal; a second amplitude adjusting circuit performs multiplication operation on the second PWM signal and the first analog waveform signal to obtain a second analog waveform signal and obtain an inverted waveform signal; the controller obtains amplitude information corresponding to the frequency of the fundamental frequency waveform by using a phase accumulator, and generates a third PWM signal; and the synthesis adjusting circuit performs multiplication operation on the third PWM signal and the second analog waveform signal or the inverted waveform signal to generate an intermediate frequency treatment waveform.

The invention relates to the technical field of LED illumination control, and discloses a lamp strip brightness control system and method capable of realizing self-adaptive adjustment, and an LED lamp strip. An environment data acquisition module of the system acquires environment illumination intensity data and environment color temperature data in real time to form a multidimensional environment parameter matrix containing a timestamp; a dynamic feature extraction module performs multi-scale decomposition on the matrix, extracts illumination intensity change trend features and color temperature fluctuation features, and constructs dynamic feature vectors; the adaptive decision module calculates a brightness adjustment weight based on the dynamic feature vector, and generates a brightness adjustment instruction in combination with a preset brightness constraint condition; the signal synthesis module converts the brightness adjustment instruction into a pulse width modulation signal, and superposes a high-frequency noise suppression signal to optimize the signal stability; and the driving execution module adjusts the driving current of the LED lamp strip according to the pulse width modulation signal so as to realize self-adaptive brightness adjustment. The system can improve the stability and adaptability of brightness adjustment and improve the visual experience of a user.

The invention discloses a vehicle-mounted CAN bus anti-interference communication system and method based on photocoupling, and the system comprises an anti-interference communication system frame, the anti-interference communication system frame comprises a CAN bus receiving and transmitting module, a photocoupling isolation module, and a signal processing and separating module, the CAN bus receiving and transmitting module is used for receiving and transmitting CAN bus signals, and the photocoupling isolation module is used for receiving and transmitting the CAN bus signals. The photoelectric coupling isolation module is used for realizing transparent conversion of data between an optical signal and an electric signal and realizing electrical isolation of a physical layer while maintaining the integrity of a CAN protocol, and the signal processing and separation module is used for constructing a cooperative processing mechanism of time sequence calibration, differential judgment, logic reconstruction and signal synthesis. According to the invention, based on a physical layer signal isolation mechanism of optoelectronic isolation, a bidirectional independent transmission path of a CAN bus TXD / RXD channel data stream is established, and TXD mapping data and CAN bus effective data in an RXD channel are accurately separated, so that the system reliability in an industrial-grade communication scene can be obviously improved.

The invention discloses an active disturbance rejection controller control method and device, and the method comprises the steps: receiving an actual output feedback signal of a controlled object and a historical output control signal of a controller based on a linear expansion state observer, calculating the total disturbance of a system in real time through a three-order state-space equation, and obtaining a disturbance estimation value; receiving the disturbance estimation value and the control input gain coefficient based on a compensator, calculating a dynamic compensation amount for offsetting the total disturbance of the system, and outputting the dynamic compensation amount to a signal synthesis node; a deviation signal of a set value signal used for defining the target state of a controlled object and a feedback signal actually output by the controlled object is received based on a controller, and an anti-interference basic control signal is generated in combination with the bandwidth of the controller; and subtracting the dynamic compensation amount from the anti-interference basic control signal based on the signal synthesis node to generate an active-disturbance-rejection control amount, outputting the active-disturbance-rejection control amount to a controlled object, and suppressing external interference and internal parameter drift of the controlled object.

The invention relates to the technical field of wireless communication, and provides a power synthesis circuit and a power amplifier. Comprising a first signal input end, a second signal input end, an input impedance matching circuit, a first harmonic suppression circuit, a second harmonic suppression circuit, a first high-pass filter circuit, a second high-pass filter circuit, a low-pass filter circuit and a signal synthesis output end, the low-pass filter circuit comprises a first inductor, a second inductor and a first capacitor; the first end of the first inductor serves as the first input end of the low-pass filter circuit, the first end of the second inductor serves as the second input end of the low-pass filter circuit, the second end of the first inductor is connected with the first end of the first capacitor and the second end of the second inductor and serves as the output end of the low-pass filter circuit, and the second end of the first capacitor is grounded. The power synthesis circuit has the impedance conversion characteristic, and has the advantages of low cost, high isolation, high integration and the like.

The present disclosure proposes a concept of training a machine learning network for use with a ToF camera. Based on a predefined synthetic scene, it is simulated a ground truth time resolved illumination return signal for a light pulse emitted from the ToF camera to the synthetic scene and scattered back from the synthetic scene to the ToF camera. The synthetic scene comprises a plurality of scene points with known distances between each of the scene points and the ToF camera. Based on the ground truth time resolved illumination return signal and a simulation model of the ToF camera, it is then simulated an output signal of at least one ToF pixel capturing the synthetic scene. Based on the simulated output signal of the ToF pixel and the ground truth time resolved illumination return signal, weights of the machine learning network are adjusted to cause the machine learning network to map the simulated output signal of the ToF pixel to an output time resolved illumination return signal approximating the ground truth time resolved illumination return signal.

The invention provides a space optical communication multi-aperture receiving method based on optical and electrical comprehensive synthesis. The number of optical beam combination sub-apertures is intelligently adjusted by adopting densely-arranged multi-aperture optical antennas so as to ensure that light paths and light signals after beam combination are mutually independent; receiving of optical signals and correction of first-order and second-order Zernike aberration are achieved through the optical antenna array with the total number of sub-apertures determined on the basis of the receiving plane; the optical signals pass through the optical beam splitter, one part of the optical signals are input into the coupling energy photoelectric detector to be converted into voltage or current feedback signals to be input into the control module, and the other part of the optical signals are input into the N * 1 self-adaptive light beam synthesis module; coherent beam combination is carried out on the optical signals through the N * 1 adaptive beam combination module to form M paths of mutually independent optical signals; and carrying out direct detection or coherent detection on the M paths of optical signals, converting the M paths of optical signals into M paths of electric signals, and carrying out electrical signal synthesis on the M paths of electric signals. The communication stability is improved, and the independence of the electrical synthesis signal is ensured.

The invention relates to the technical field of neuroacoustics, in particular to a personalized brain wave induced audio generation method and system, and the method comprises the steps: S1, extracting multi-dimensional features of an input audio signal, the extracted dimensions at least comprising a time domain feature, a frequency domain feature, a pitch feature, an emotion feature and a complex feature; s2, on the basis of the multi-dimensional features extracted in the step S1, parameters of four neuroacoustic induction mechanisms are calculated in parallel; and S3, according to the features obtained in the step S1 and the quadruple mechanism parameters obtained in the step S2, signals corresponding to the four mechanisms are fused through a weight distribution strategy and a signal synthesis formula to generate a final brain wave induction audio. The method has the advantages that four mechanisms of rhythm synchronization, harmonic resonance, neural oscillation coupling and binaural beat frequency effect are fused, parameters of all the mechanisms are dynamically adjusted by analyzing music characteristics, and efficient personalized brain wave induction is achieved.

The invention discloses a system and a method for realizing positive and negative weighting in an optical domain, and the system comprises a multi-wavelength light source array which provides multi-channel optical signals, and each wavelength corresponds to an input channel; the adjustable bias photoelectric modulator arrays are in one-to-one correspondence with the light sources, a quiescent working point is biased in a positive / negative slope linear region of a transmission curve through an independent bias circuit, positive and negative weight symbol control is realized, and an input electric signal is loaded; the multi-wavelength micro-ring weighting unit is used for weighting the modulated optical signal by regulating and controlling the transmissivity of the micro-ring; the photoelectric detection unit adopts a single-path detector to receive a composite optical signal and convert the composite optical signal into an electric signal; and the capacitor blocking and signal synthesis unit filters a direct current component, synthesizes an alternating current weighted signal and outputs a real number weighted sum. The system does not need to balance detectors and redundant devices, simplifies hardware architecture, reduces cost and size, reduces power consumption, improves weighting precision and reliability, supports flexible expansion of multi-wavelength channels, adapts to requirements of a large-scale optical neural network, and provides support for optical calculation integration and low-power-consumption landing.

The utility model provides an interference elimination device for an open-end coaxial sensor, and the device comprises a balance-to-unbalance conversion device which is provided with a signal combination port, an in-phase port, and an anti-phase port. An open-end coaxial sensor; wherein the number of the open-end coaxial sensors is two, one open-end coaxial sensor is connected to the in-phase port, and the other open-end coaxial sensor is connected to the anti-phase port; according to the utility model, the signals of the two sensors are synthesized to one port by using the balance-unbalance conversion device, useful signals are superposed in the same phase at the port, interference signals are superposed in the opposite phase at the port, and the superposed result greatly reduces the interference on the detection signals, thereby avoiding the interference of the detection signals in a non-laboratory environment. And the detection result is seriously influenced by external interference.

The invention relates to a square wave generation method and system based on a DDS signal transmitter, and belongs to the technical field of digital electronic signal synthesis. The method comprises the following steps: calculating a digital analog signal sampling frequency based on a square wave output frequency set by a user, and obtaining a digital fundamental frequency phase signal according to a phase-locked loop precision range; mapping the digital fundamental frequency phase signal into a sinusoidal amplitude signal according to a digital phase accumulation mechanism to obtain a digital-analog conversion clock, binarizing the sinusoidal amplitude signal, and outputting a square wave output period; dividing a square wave output period into a low level region and a high level region according to the precision range of the phase-locked loop, reading a square wave output frequency set by a user through a random storage address, and outputting a non-offset phase-locked square wave; and constructing an error accumulation self-checking architecture to calculate a frequency control word, and when detecting that the frequency control word has a decimal discarding error, recalculating the frequency control word.

The invention provides a differential bridge structure and a communication system, the differential bridge structure comprises at least two bridge modules, and the bridge modules are configured to be single-ended input and double-ended output; the bridge module comprises a load, a first coupling line with an input end and a straight-through end which are opposite to each other, and a second coupling line with a coupling end and an isolation end which are opposite to each other; wherein the input end is configured to receive differential signals, the isolation end is configured to be grounded after being connected with a load in series, and the direct connection end and the coupling end are configured to enable the phase difference of output signals to be kept 90 degrees. In the scheme, the phase difference between the output signals of the straight-through end and the coupling end is kept at 90 degrees, that is, the two output signals are orthogonal signals, the orthogonality can be used for demodulation, signal separation or signal synthesis, the signal processing capacity is enhanced, and the signal processing flexibility of the differential bridge structure is improved; and the load is grounded at the isolation end, so that the consumption of coupling energy is reduced, the noise and distortion of the signal in the transmission process are reduced, and the integrity of the signal is ensured.

The invention discloses a tile-type integrated radio frequency receiving array front end of an open architecture. The front end comprises an antenna module, a tile type front end receiving module, a frequency conversion module, a multifunctional feed panel, a comprehensive digital module and a power supply module, wherein the antenna module is used for receiving space electromagnetic signals; the front-end receiving module amplifies a space electromagnetic signal received by an antenna, performs sub-array-level signal synthesis, and performs amplitude-phase modulation of an analog signal; the frequency conversion module converts a broadband radio frequency signal into an intermediate frequency signal; the multifunctional feed panel provides a connection interface for analog signals and digital signals; the integrated digital module converts analog and radio frequency signals into digital signals, generates high-speed data streams and performs unified control on array surface amplitude-phase frequency conversion; and the power supply module provides power supply and power management for each functional module. The antenna has the advantages of integrated structure, open architecture, reconfigurable function, light and thin structure and broadband reception, and can meet the functional requirements of radar, electronic warfare and communication.

The invention relates to a low-power-consumption clock delay method and system in the technical field of integrated circuits, and the method comprises the following steps: carrying out the phase alignment of a counting clock signal and a to-be-delayed clock signal based on the counting clock signal, and generating a first phase clock alignment signal and a second phase clock alignment signal; extracting rising edge information and falling edge information of the first phase clock alignment signal to obtain a pulse signal; splitting the clock rising edge information and the clock falling edge information to obtain a first pulse filtering signal and a second pulse filtering signal; performing coarse delay on the first pulse filtering signal and the second pulse filtering signal in sequence, and performing signal synthesis processing after coarse delay to obtain a coarse delay clock signal; and performing fine delay on the coarse delay clock signal based on the digital time converter to obtain a fine delay clock signal, thereby solving the problem that the existing delay technology cannot simultaneously realize high delay precision and large dynamic range under the condition of low power consumption.

In a single-message wireless communication network, a system is provided that can instantaneously switch the group formation / integration state from each wireless communication terminal. 【Solution means】Terminals belonging to each group G1 / G2 / G3 include a modulation transmission unit TX that can be switched between a group channel chA / chB / chC and a common channel chZ, a main reception demodulation unit RX1 fixed to the group channel, a sub-reception demodulation unit RX2 fixed to the common channel, muting units 11 and 12 for the outputs of each reception demodulation unit RX1 and RX2, and a signal synthesis unit 13 that synthesizes the outputs of each muting unit 11 and 12, and the output of the signal synthesis unit 13 is used for voice playback. When one terminal transmits an integration / formation command signal on the common channel, other terminals receive it with the sub-reception demodulation unit RX2, perform channel control of the modulation transmission unit TX and adaptive control of each muting unit 11 and 12, and one terminal itself also executes the same control in a transmission event.