3957 results about "Signal generator" patented technology

The invention provides a consistency test method and device for single-to-wire communication, and the method comprises the steps: receiving a communication signal transmitted by a tested device, extracting a time domain feature, a frequency domain feature and a modulation feature of the communication signal, generating a protocol feature value, carrying out the dimension reduction processing, and generating a protocol feature vector; performing matching degree analysis on the protocol feature vector and a predefined mapping dictionary, and determining a target communication protocol type with the highest matching degree; based on the determined communication protocol, dynamically generating a consistency test flow through a pre-trained neural network model; configuring a signal generator to inject an excitation signal according to the test flow, and synchronously acquiring various parameters of the tested equipment; based on the real-time feedback data, dynamically adjusting the signal amplitude, frequency and judgment threshold through a pre-trained neural network model; and summarizing feedback data of multiple rounds of tests, and generating a test report of the consistency index. According to the method, the protocol of the tested equipment can be automatically identified, the test flow is generated for the protocol, and the test efficiency is effectively improved.

A method and system for protecting low-altitude airspace against unauthorized unmanned aerial vehicles by using a base station having communication and jamming functions. The present invention relates to the field of communications, unmanned aerial vehicles, and security supervision, and specifically to a method and system for managing unmanned aerial vehicles to protect low-altitude safety by using a wireless communication network base station to provide low-altitude wireless signal coverage comprising communication signals and jamming signals. "Low altitude, slow speed, and small size" unmanned aerial vehicles have become the main users of low-altitude airspace in China, but the safety supervision on the flight of unmanned aerial vehicles in low-altitude airspace is difficult to implement. By means of the present invention, the function of a jamming signal generator is integrated into a base station (base station having communication and jamming functions), and the effective coverage of communication / jamming signals in restricted areas can be realized in a cost-effective manner through wide deployment of base station network systems, imparting the restricted areas with a significant electromagnetic signal characteristic, thereby effectively preventing the intrusion of unauthorized unmanned aerial vehicles. In addition, the management and control of authorized networked unmanned aerial vehicles is implemented through networking and communication, providing technical means for the electronic management of unmanned aerial vehicles in low-altitude airspace.

Embodiments provided herein generally include apparatus, plasma processing systems and methods for tuning in a radio frequency (RF) plasma processing system for improving substrate processing metrics. Some embodiments are directed to an apparatus for processing a substrate in a plasma processing system. The apparatus generally includes: an impedance for a match circuit configured to perform impedance matching for a plasma load; a diode-based switch coupled to the impedance for the match circuit; at least one signal generator coupled to the diode-based switch and configured to bias the diode-based switch to a first position based on a first impedance generated in the plasma load; and a second position based on a second impedance generated in the plasma load and an RF signal generator configured to provide an RF signal to the plasma load.

The invention discloses a variable-frequency ash removal device for improving photovoltaic power generation efficiency, and a control system of the variable-frequency ash removal device can dynamically adjust the output frequency and amplitude of a signal generator according to cleaning requirements. Particularly, when different types of dust are cleaned, the system can automatically adjust the vibration frequency, so that the cleaning process is more accurate. Large-particle dust is effectively removed through low-frequency and large-amplitude vibration, and small-particle dust is finely cleaned through high-frequency micro-vibration. The dynamic adjustment of the frequency and the amplitude ensures that each dust type can be thoroughly removed, and the problem of poor effect caused by fixed frequency in a traditional cleaning method is avoided.

A system that can deliver haptic feedback by applying an electrical stimulation to a first area of a user's body to induce a second area of the user's body to experience a level of natural sensation in response to an action occurring in a simulated remote environment and an intensity of the action is described. The system includes a controller to set parameters for the electrical stimulation based on the action occurring in the simulated remote environment and an intensity of the action. The system also includes a signal generator to generate the electrical stimulation comprising the parameters. The system also includes a skin surface electrode placed at a first location on a user's body remote from a second location on the user's body to deliver the electrical stimulation with the parameters to a nerve at or near the first area of the user's body.

The invention discloses a Rydberg atom microwave measurement sensitivity improving method based on atom velocity selection, and relates to the field of Rydberg atom microwave measurement, and the method comprises the steps: moving the frequency of probe light to an energy level resonance transition position of cesium atoms from a ground state to an excited state, scanning the frequency of the coupled light within a Rydberg state energy level preset range, and observing an EIT signal; the frequency of the detection light is changed, the detuning amount of the detection light is selected to enable the EIT signal to reach the maximum, and the frequency of the detection light is locked to the frequency corresponding to the maximum position of the EIT signal; meanwhile, a local oscillation field signal generator in the Rydberg atomic microwave sensitivity measurement device is turned on, and corresponding EIT-AT splitting is generated; the frequency of the coupling light is locked to the coupling light laser frequency corresponding to the lowest point of EIT-AT splitting, and the Rydberg atom microwave measurement sensitivity reaches the maximum. The cesium atom speed is screened and controlled, and the signal-to-noise ratio of the measurement signal is improved, so that the measurement sensitivity is improved.

The invention discloses a cable defect detection method and system based on double-path coupling frequency domain reflection, and the method comprises the steps: enabling a signal generator to generate two groups of correlated sine frequency sweeping signals, namely a test signal S1 and a reference signal S2; s1 is injected into the head end of the cable, and a reflected signal R1 is collected; respectively extracting the spectrum characteristics of the amplitudes and the phase differences of the R1, the S1 and the S2 by adopting a double-path signal comparison device, carrying out comprehensive judgment, and determining the reflection spectrum characteristic of the R1; the reflection coefficient spectrum is optimized through a window function, and signal features are obtained; converting the optimized frequency spectrum into a time domain reflection waveform, and extracting reflection peak time information; and calculating defect positions by combining electromagnetic wave propagation velocity. According to the cable defect detection method and system based on double-path coupling frequency domain reflection, high-precision detection of a long-distance cable is realized; and two paths of coupling signals are introduced for comparison, so that the accuracy of phase measurement is improved, and an efficient nondestructive detection scheme is provided for power grid operation and maintenance and the like.

The invention discloses a wireless layered water injection communication method and device, electronic equipment and a storage medium. The method comprises the steps that water absorption characteristic curve information of stratums corresponding to all water distributors in a target well is obtained, a target stratum is determined according to the water absorption characteristic curve information, an instruction for obtaining characteristic parameters of a reference stratum is received, and a sound wave signal generator corresponding to the reference stratum is controlled to emit a sound wave signal; the sound wave signal is transmitted to a target water distributor corresponding to the target stratum, so that the target water distributor sends a pressure pulse signal to a wellhead controller of the target well, characteristic parameters of the reference stratum are obtained, and the pressure pulse signal is a signal used for indicating the characteristic parameters of the reference stratum. After the target stratum is determined, the sound wave signal is transmitted to the target water distributor corresponding to the target stratum through the sound wave signal generator, then the target water distributor sends the underground data to the wellhead controller through the pressure pulse signal, and the problems that the whole well communication efficiency is low and the communication reliability of partial layers is poor are solved.

The invention relates to the technical field of radio frequency modules, and discloses a radio frequency module power amplifier efficiency test method and system, and the method comprises the steps: connecting a signal generator, a power meter, a spectrum analyzer and a DC power supply with a to-be-tested power amplifier, and obtaining a layered power amplifier efficiency test system; establishing a continuous wave test model and a modulation signal test model to obtain compensation parameter data; inputting a first test signal to the to-be-tested power amplifier to obtain power gain data and standardized efficiency data; inputting a second test signal to the to-be-tested power amplifier to obtain adjacent channel leakage power ratio data; performing total efficiency analysis and isolation efficiency analysis on different working states to obtain a layering efficiency analysis result; and carrying out standardization processing on a hierarchical efficiency analysis result, establishing power measurement error evaluation and efficiency calculation error evaluation, and obtaining a power amplifier efficiency test report, thereby realizing comprehensive evaluation on the efficiency characteristics of the power amplifier in different working states.

The invention discloses a clock signal control soft PUF (Physical Unclonable Function) based on a coding circuit and an application method thereof, the clock signal control soft PUF comprises the coding circuit, a clock signal generator and a register module, the coding circuit can access externally input image information data, and the image information data is simultaneously used as an input excitation signal of the clock signal control soft PUF; the clock signal generator is used for generating three groups of clock signals of which the frequencies are sequentially increased, the clock cycles of the three groups of clock signals are all smaller than the critical path of the coding circuit, and each group of clock signals is an overclocking clock signal which can enable the coding circuit to be in an abnormal working state; if the external input image information data is accessed, the internal data transmission is abnormal, and at the moment, the coding circuit generates an output signal irrelevant to the input image information data and outputs the output signal to the register module for storage; the method has the advantages of being high in safety and low in resource consumption.

The invention belongs to the technical field of calibration simulation, and particularly discloses a cable partial discharge calibration simulation system based on a programmable control technology, and the system comprises a signal parameter setting module which can set standard signal parameters through a signal generator, and covers the frequency, the amplitude, the pulse width and the repetition frequency. The signal coupling transmission module enables the signal generator to generate a signal and couple the signal to a cable. The environment parameter acquisition module is responsible for acquiring environment temperature, humidity, magnetic field intensity and electric field intensity of the signal generator and the cable at each monitoring point. The environmental parameter correction module monitors signal parameters of each monitoring point of the cable in real time according to the collected environmental data and analyzes temperature, humidity, magnetic field and electric field correction indexes. And the signal parameter correction module corrects and analyzes the cable signal parameters accordingly. And the deviation degree abnormity judgment module analyzes the deviation degree index based on the standard and the corrected signal parameter, and judges whether the deviation degree index is abnormal or not for calibration.

A test and / or measurement instrument includes at least three ports and at least three measurement circuits connected to the at least three ports, respectively. The test and / or measurement instrument further includes at least one signal generator circuit and a control circuit. The control circuit is configured to set a first calibration mode and carry out a first test of the instrument by measuring the calibration signal travelling from the signal generator circuit to the respective port as well as a signal traveling from the respective port to the signal generator circuit. The control circuit is configured to set a second calibration mode and carry out a second test of the instrument by measuring the calibration signal forwarded only to the main port in the first sub-mode and the calibration signal received by the respective port from the signal generator circuit via the main port in the first sub-mode.

The invention provides a tumor electric field treatment system, an electrode slice temperature detection method and an electrode slice anomaly detection method, the system comprises an alternating current signal generator, an electrode slice and a controller, the electrode slice comprises a plurality of electrode units and a plurality of temperature detection units, the plurality of temperature detection units are divided into a plurality of row groups and a plurality of column groups, and the plurality of electrode units are connected with the controller. The grounding ends of the temperature detection units in each row group are jointly connected to the same grounding wire, and the signal ends of the temperature detection units in each column group are connected to the same dual-purpose signal wire after being in short circuit with the corresponding electrode units; when the dual-purpose signal line is connected to the temperature sampling point, the grounding wires are sequentially conducted, so that temperature detection signals detected by the temperature detection units are sampled based on the temperature sampling point; when the dual-purpose signal line is connected to the alternating power line, alternating electric signals are transmitted to the electrode units. Therefore, the temperature of the electrode plate can be detected by using fewer conductive traces, and whether the electrode plate is abnormal or not can be judged through temperature detection.

The invention provides a cable defect detection device based on double-path coupling frequency domain reflection, and belongs to the technical field of power cable detection. Comprising a master control module, a double-path coupling signal generator, a first coupler, a second coupler, a first signal comparator and a second signal comparator, the master control module is electrically connected with the double-path coupling signal generator; the input end of the first coupler is connected with the double-path coupling signal generator, the coupling port of the first coupler is connected with a cable to be tested, the output end of the first coupler is connected with the input end of the first signal comparator, and the output end of the first signal comparator is connected with the input end of the second signal comparator; the input end of the second coupler is connected with the double-path coupling signal generator, and the output end of the second coupler is connected with the second signal comparator; the output end of the first signal comparator and the output end of the second signal comparator are both electrically connected with the master control module. According to the invention, the problem of phase ambiguity of single-path measurement is overcome by using a double-path signal comparison structure, and the accuracy and reliability of cable defect detection are remarkably improved.

According to some embodiments, an ear-worn device, e.g., a hearing aid, is provided that operates to enhance audio signals detected by the ear-worn device. In some embodiments, the ear-worn device includes a microphone, a processing circuit coupled to the microphone, and an output signal generator coupled to the processing circuit. In some embodiments, a method for enhancing audio signals includes: detecting an audio signal with the microphone; as the audio signal is being detected, dividing the audio signal into a plurality of segments; enhancing the detected audio signal with the processing circuit of the hearing aid; and outputting the enhanced audio signal with the output signal generator. In some embodiments, enhancing the detected audio signal includes processing one or more of the segments of the detected audio signal with a neural network engine (NNE) of the processing circuit to obtain an output for enhancing the detected audio signal.

The invention discloses an optical frequency comb generation method and device based on Brillouin scattering and an electro-optical modulator, and belongs to the field of photoelectric measurement. The method comprises the steps that a first laser and a second laser are used for generating pump light and seed light respectively, multi-wavelength pump light is generated through a cascade electro-optical modulator, the pump light and the seed light are emitted into a Sagnac loop, an optical frequency comb is output through the forward Brillouin scattering effect of an optical fiber and the electro-optical modulator, and the seed light and the pump light are output. The polarization controller is adjusted to optimize polarization state matching of the pump light and the seed light, so that the Brillouin scattering effect reaches the maximum value. The device is composed of a laser, an electro-optical modulator, a signal generator, an optical amplifier, an optical isolator, an optical coupler, a polarization controller and an optical fiber. The optical fiber forward Brillouin scattering effect and the electro-optical modulator are combined, the optical frequency comb giving consideration to the wide frequency spectrum and the narrow interval is generated, meanwhile, the comb tooth interval of the optical frequency comb can be accurately controlled by independently adjusting the frequency of the signal generator, and accurate measurement of signals or objects is achieved.

A system for estimating current-dependent non-linear equivalent circuit model (ECM) parameters of a battery may include measurement circuitry for measuring a battery voltage across terminals of the battery and a battery current drawn from the battery. The system may also include an impedance model having impedance model parameters, the impedance model for modelling behavior of the battery. The system may further include an augmented stimulus signal generator configured to dynamically analyze the battery current drawn from the battery by a load, based on analysis of the battery current, determine an augmented current for augmenting the current drawn by the load; and generate the augmented current to be drawn from the battery. The system may also include a battery model estimator for estimating the impedance model parameters when the augmented current is drawn from the battery.

The invention discloses a power battery thermal runaway fault detection method and system based on multi-source parameters, and belongs to the technical field of battery management, and the method comprises the steps: inputting a high-frequency signal generated by a signal generator to a positive electrode feed point of a battery cell, connecting a coaxial line to a positive electrode, and grounding a negative electrode to form a grounding loop; the collected dendritic crystal reflection signals are analyzed, a quantitative correlation model is established, the growth condition of dendritic crystals is analyzed according to the quantitative correlation model, and preliminary early warning is carried out; electrochemical parameters and auxiliary parameters of the battery cell are collected, and cross validation is carried out on the electrochemical parameters and the auxiliary parameters and preliminary early warning of dendritic crystals; and establishing a dynamic risk and grading response mechanism, dividing the risk into different grades, and setting corresponding response measures. In the implementation process of the technical scheme provided by the invention, by combining dendritic crystal growth prediction and electrochemical parameter analysis, accurate monitoring of the internal state of the power battery is realized, the timeliness and accuracy of thermal runaway early warning are effectively improved, and safe and stable operation of a battery system is ensured.

The invention relates to an anti-electromagnetic interference device and method applied to a short-range unmanned aerial vehicle. The equipment comprises an electromagnetic pulse induction module, a power supply module, an electromagnetic pulse shielding device, a data processing and control module, an ultrahigh frequency signal generator and a signal transceiving module. Through a high-efficiency assembly, a high-efficiency electromagnetic pulse detection mechanism and an electromagnetic pulse protection scheme, an integrated design and a systematized layout strategy are combined, and a set of electromagnetic pulse interference resisting equipment which has a wide and accurate monitoring frequency spectrum and a strong electromagnetic pulse shielding capability and also gives consideration to the portability of the unmanned aerial vehicle is constructed. The equipment has the capability of monitoring and filtering electromagnetic pulses in a specified range in real time, and ensures that a carried unmanned aerial vehicle system can resist electromagnetic pulse invasion of certain intensity, so that the survival capability and the system reliability of a short-range unmanned aerial vehicle in an electromagnetic interference environment are remarkably improved.

The invention discloses a dual-mode dynamic cooperative control method and system based on pulling of a mooring line. The method comprises the steps that displacement electric signals are collected through double potentiometers; a Z-axis PWM signal is generated based on the displacement electric signal through a PWM signal generator; an XY-axis PWM signal is generated through the included angle difference between an XY rocker on the unmanned aerial vehicle and the mooring line; the Z-axis PWM signal is divided into two paths, one path is transmitted to a capstan electronic speed controller, and the other path is transmitted to the unmanned aerial vehicle and is combined with the X-axis PWM signal and the Y-axis PWM signal to form a three-dimensional control signal; setting a remote control signal and a winch potentiometer signal as well as a three-dimensional control signal and a winch manual signal as a first linkage group and a second linkage group respectively; when the first linkage group is switched on and the second linkage group is switched off, the unmanned aerial vehicle enters a first control mode; and when the second linkage group is switched on and the first linkage group is switched off, the unmanned aerial vehicle enters a second control mode. The method is used for solving the technical problems of single control mode, insufficient man-machine collaboration, poor environmental interference adaptability and limited control precision existing in traditional mooring unmanned aerial vehicle control.

An object displaying system includes a right light signal generator, a left light signal generator, a right combiner, and a left combiner. The right light signal generator generates right light signals for an object. The right combiner receives and redirects the right light signals towards one retina of a viewer to display multiple right pixels of the object. The left light signal generator generates leftght signals for the object. The left combiner receives and redirects the left light signals towards the other retina of the viewer to display multiple left pixels of the object. A first redirected right light signal and a corresponding first redirected left light signal are perceived by the viewer to display a first virtual binocular pixel of the object with a first depth that is related to a first angle between the first redirected right light signal and the corresponding first redirected left light signal.

The invention relates to the technical field of quantum sensing and ocean detection, and discloses an ocean magnetic field sensor based on an NV color center and an ocean magnetic field measuring method.The sensor comprises a cylindrical pressure-resistant cabin, an optical platform arranged in the pressure-resistant cabin and a main control panel; a laser, a beam shaping unit, a dichroscope, a beam shaping lens group, an objective lens, a diamond NV color center chip, a plano-convex lens I, a band-pass filter and a photoelectric detector are mounted on the optical platform; two microstrip loop antennas are mounted on the outer side of the diamond NV color center chip; an FPGA + ARM dual-core processor, a digital lock-in amplifier and two microwave signal generators are installed on the main control board, and the microwave signal generators are connected with the microstrip loop antenna and achieve electromagnetic coupling with the diamond NV color center chip. The invention has the advantages of high sensitivity, good long-term stability and strong anti-interference capability, and provides a new generation of quantum sensing solution for applications such as ocean geomagnetic monitoring and underwater target identification.

The invention discloses a communication and interference integrated base station method and system for a low-altitude safety problem of an unmanned aerial vehicle, and relates to the field of communication, the field of unmanned aerial vehicles and the field of safety supervision, in particular to a method and system for realizing low-altitude wireless signal coverage, including communication signals and interference signals, by using a wireless communication network base station so as to realize low-altitude safety management of the unmanned aerial vehicle. A low-altitude, slow and small unmanned aerial vehicle becomes a main user of a low-altitude airspace in China, but the safety supervision of the flight of the unmanned aerial vehicle in the low-altitude airspace is difficult to realize. According to the method, the interference signal generator function is integrated into the base station (the communication-interference integrated base station), effective coverage of communication / interference signals in the forbidden and limited area can be economically realized through wide deployment of a base station network system, and obvious electromagnetic signal characteristics are given to the forbidden and limited area, so that intrusion of an illegal flying unmanned aerial vehicle is effectively prevented; and meanwhile, management and control of the legal flight networked unmanned aerial vehicle are realized through networking communication, and a technical means of electronic management of low-altitude flight of the unmanned aerial vehicle is provided.

A measurement system includes a signal analysis circuit, a signal generator circuit, a control circuit, and a DUT connector. The DUT connector is connectable to a device under test for receiving a measurement signal outputted by the DUT. The signal analysis circuit is connected to the DUT connector for receiving the measurement signal. The signal generator circuit is configured to generate a radio frequency (RF) test signal that is transmitted to the DUT. The signal analysis circuit is configured to digitize the measurement signal, thereby obtaining a digitized measurement signal. The control circuit is configured to control the signal generator circuit to generate the RF test signal based on the digitized measurement signal, based on known error parameters of an error model of the measurement system, and based on a desired reflection coefficient at a reference plane associated with the DUT.

A system to configure a neurostimulation signal to a patient's body has a neurostimulator to create a base stimulation signal which has a series of first pulses. A computer processor within the neurostimulator deconstructs the first series of pulses into a first and second partial pulse series which have respective first and second partial electrical pulses where the first and second partial electrical pulses substantially summate to the base stimulation signal. A programmable signal generator provides a constant amplitude of combined stimulation pulses by applying the first and second partial pulses to a number of contacts of an electrode positionally located to stimulate a target tissue in the patient's body.

The invention discloses a light-induced thermoelastic spectrum trace gas detection device and method based on an echo wall mode microcavity. The device comprises a first signal generator, a lock-in amplifier, a laser device control unit, a first laser device, a laser beam collimation unit, a gas chamber, a focusing lens, a tuning fork, an echo wall mode microcavity, a coupling medium, a second laser device, a second signal generator, a photoelectric detector and a computer, the emergent laser is focused to the interdigital root of the tuning fork through the focusing lens; laser output by the second laser device is transmitted by the coupling medium and coupled into the echo wall mode microcavity in an evanescent wave form, the echo wall mode microcavity deforms, the resonant wavelength of the echo wall mode microcavity in the transmitted spectrum moves, and the concentration of the gas to be detected in the gas chamber is inverted according to the displacement of the resonant wavelength. The problems that a quartz tuning fork is large in thermal noise and weak current signals are easily interfered by an electromagnetic field are solved.

The invention provides an all-digital beamforming transmitter and an all-digital beamforming transmitting method based on a digital radio frequency technology. The all-digital beam forming transmitter provided by the invention comprises a plurality of baseband signal generators, a quadrature modulator, an adder, a 1-bit increment integral modulator, a digital-to-analog converter, a radio frequency front end and an antenna which are connected in sequence, each baseband signal generator is connected with one path of quadrature modulator and one antenna, one path of quadrature modulator comprises a plurality of quadrature modulators, and each baseband signal generator generates a pair of baseband signals; the number of the quadrature modulators in the one-path quadrature modulator is the same as the number of the adders, the number of the 1-bit incremental integral modulators, the number of the digital-to-analog converters, the number of the radio frequency front ends and the number of the antennas; the number of the baseband signal generators is the same as the number of wave beams formed by the antenna, and the number of the baseband signal generators is different from the number of the quadrature modulators in one path of quadrature modulator.

The invention belongs to the technical field of flow field optical measurement, and particularly relates to a high-enthalpy plasma gas temperature measurement method, system and device based on an absorption spectrum. Generating a composite modulation signal through a high-frequency sine wave and a low-frequency sawtooth wave, and enabling incident light to pass through a flow field measurement area in parallel through laser modulation and beam shaping; the detector receives the transmission light and converts the transmission light into an electric signal containing harmonic information, the signal acquisition device is used for performing signal acquisition, the phase-locked demodulation algorithm is used for extracting second harmonic, and the temperature is inversely deduced by combining the double-spectral-line temperature measurement method and the Fourier coefficient amplitude ratio of the second harmonic with the HITRAN database. The system comprises a signal driving module, a laser emission module, a detection acquisition module and a temperature measurement module. The device is composed of a signal generator, an in-phase adder and the like, and a laser is matched with a driving power supply to guarantee stable work. According to the scheme, aiming at the problems of weak signal absorption and insufficient signal-to-noise ratio under complex working conditions, the measurement accuracy and reliability are improved by composite modulation, harmonic extraction and a bispectral line algorithm, and an effective means is provided for research on thermal characteristics of the high-enthalpy plasma.

A self-adaptive high-dynamic spread spectrum tracking receiver relates to the technical field of satellite communication and comprises an AGC loop, an A / D converter, a PN code capturing and tracking loop, a single carrier loop, a despreading device, a phase discriminator, a phase shift signal generator and a low-pass processor. The method comprises the following steps of: converting a signal into a digital signal, subsequently generating an output tracking signal through a PN code capturing and tracking loop, processing through a single carrier loop to obtain a captured tracking signal and an amplitude excitation signal, and finally carrying out de-spreading and phase discrimination to generate an azimuth error voltage signal and a pitching error voltage signal; the receiver can stably receive and process spread spectrum signals sent by a high-speed target.

The invention discloses an underwater focusing intense sound system and method based on phase control, and relates to the technical field of focusing intense sound, and the technical scheme is characterized in that a measurement and control upper computer is used for controlling the emission and detection of a trigger signal; the phase control signal generator is used for controlling a phase control signal of sound wave emission; the multi-channel power amplifier is used for driving the acoustic emission phased area array, and the acoustic emission phased area array is used for emitting acoustic waves; the area array calibration hydrophone is used for receiving signals of reflected sound waves; the target calibration sound source is used for transmitting a signal pulse width, the target sound field measurement hydrophone is used for receiving the signal pulse width transmitted by the target calibration sound source and forwarding the signal pulse width to the measurement and control upper computer, and the measurement and control upper computer receives the forwarded signal pulse width for system evaluation and correction. By generating the high-energy strong-focusing sound field and combining the actual underwater signal propagation process, accurate positioning and control of the underwater strong sound field can be completed, so that accurate focusing irradiation and high-resolution imaging of a long-distance small target are realized.