184 results about "Wave modulation" patented technology

The invention relates to the technical field of artificial intelligence, and provides a network intrusion detection method based on multidimensional feature collaborative analysis, and the method comprises the steps: calculating the correlation degree eta ij of any two feature columns in an original traffic feature matrix, and when eta ij is greater than eta thr, generating a new feature through Qij = Xi * Xj + (1-eta ij) * (Xi + Xj), outputting a dimension reduction feature matrix to perform nonlinear spatial transformation on the dimension reduction feature matrix X ', dynamically retrieving associated knowledge through a learnable memory library, fusing current input features and memory enhancement features, and outputting refined features; decomposing the refined features to a biological neural oscillation frequency band, applying carrier modulation, and performing feature reconstruction to generate a space-time correlation tensor; the refined features and the space-time correlation tensor are fused, and the intrusion behavior classification probability is output through multi-stage abstract compression and regularization processing; screening difficult samples based on classification confidence to construct a training library, and obtaining a conventional detection model and a special and precise detection model; and preferentially calling the special and precise model during real-time detection, and switching to the conventional model when the confidence coefficient is smaller than a confidence coefficient threshold value.

The invention discloses an electromagnetic field simulation method under the coupling action of tidal waves and sea waves. The method comprises the steps that input parameters of the tidal waves and the sea waves are set; configuring environmental parameters and geomagnetic conditions; superposing the tidal wave velocity field and the sea wave disturbance velocity field to form a total velocity field; the tidal wave part and the sea wave part are linearly coupled in time and space to obtain a tidal wave-sea wave coupling field evolved along with a tidal phase; in the tidal wave-sea wave coupling field, electromagnetic response calculation is executed on each frequency-direction sampling point; general field synthesis and modulation effect analysis: introducing a tidal wave modulation factor to clearly reflect amplitude periodic change and spectrum reconstruction characteristics of an electromagnetic field signal along with a tidal phase; and outputting a time sequence, an amplitude spectrum and a spatial distribution result of the comprehensive electromagnetic field. According to the method, the authenticity and applicability of sea wave induction electromagnetic field simulation can be improved, and a new technical means is provided for electromagnetic noise recognition, sea wave parameter inversion and complex ocean dynamics process research.

The invention discloses a domestic high-power IGBT rectification system and method, and relates to the technical field of IGBT rectification, and the method comprises the steps: constructing an active front-end rectification main circuit; a direct current side hybrid harmonic modulation auxiliary circuit is integrated; performing multiple delay signal elimination operation on the sampled signal, filtering out a harmonic interference signal, and locking the frequency and phase of the fundamental voltage of the power grid through a phase-locked loop; establishing a control structure of a voltage outer loop and a current inner loop, generating an instruction amplitude of a grid-side active current and an ideal sinusoidal current reference waveform, and controlling an IGBT in an active front-end rectification main circuit in real time; real-time fast Fourier transform analysis is carried out on the actual input current of the grid side, and residual harmonic components are identified; and feedback management of regenerated energy is realized. The invention provides a fused high-adaptability active front-end IGBT (Insulated Gate Bipolar Translator) rectification method and system which can stably operate under the condition of power grid voltage distortion and realize deep harmonic suppression and efficient energy bidirectional flow.

The invention provides an impact equipment waveform parameter adjusting method and device suitable for different distribution network equipment, and relates to the technical field of impact test wave modulation. The method comprises the following steps: determining a target waveform parameter and an adjustable parameter; carrying out linear weighting on the two and a waveform index between current parameters measured in real time, and constructing a fitness function; based on the function, an adaptive hybrid particle swarm-differential evolution algorithm is adopted to complete candidate parameter initialization, and updated parameters are obtained through particle swarm global search; if the global search is stagnated, differential evolution local refinement is started to obtain refinement parameters; and judging the fitness, if convergence is satisfied, outputting the optimal adjustment parameter, otherwise, returning to global search until convergence. According to the scheme, real-time monitoring, high-precision adjustment and self-adaptive optimization are integrated, the multi-modal impact waveform can be quickly generated, and the universality and the intelligent level of a distribution network equipment test are improved.

The invention discloses a modular programmable metasurface of a row-column cross addressing architecture, which comprises an array formed by a plurality of pixels, each pixel comprises a plurality of modulation units and corresponding addressing circuits, and each modulation unit is of a metal-vanadium dioxide / sapphire / metal stacked structure and is used for realizing nonvolatile electromagnetic wave modulation; according to the addressing circuit, a micro heater array is connected with a nonlinear selector in series, and pixel-level independent control is achieved through a row-column cross addressing architecture; the addressing circuit comprises a series connection structure of a micro heater array and a nonlinear selector, and the resistance of the nonlinear selector changes nonlinearly along with voltage so as to improve the selectivity of pixel addressing. The invention further discloses a preparation method of the modularized programmable metasurface. According to the invention, the array scale can be expanded through modular splicing, and the device has the characteristics of compact structure, high integration level and flexible operation.

The invention discloses a grounding grid corrosion and soil defect diagnosis method based on impact square wave modulation, and relates to the technical field of electric power system intelligent operation and maintenance and equipment state monitoring. A broadband impact square wave modulated by a Gaussian window is generated and injected into a grounding down lead, and electromagnetic response of an underground conductor and soil is stimulated; the method comprises the following steps: acquiring an electric field signal by using an earth surface distributed sensor array, and extracting reflection time delay and frequency domain characteristics in combination with short-time Fourier transform STFT; reconstructing a time domain dielectric constant through reflection coefficient inversion and inverse Fourier transform, and decoupling metal corrosion and soil environment abnormity; based on a multi-parameter fusion criterion, accurate positioning and classification of defects such as fracture, corrosion, water accumulation and cavities are realized, and a resistivity-dielectric property dual-channel thermodynamic diagram is generated. According to the method, excavation is not needed, live detection can be achieved, the advantages of high resolution, non-destructiveness and visualization are achieved, and the accuracy and the intelligent level of grounding grid state diagnosis are remarkably improved.

The invention provides a light-induced force microscope system and an application method thereof. The system comprises a first laser, an atomic force microscope probe, a photosensitive detector, a first lock-in amplifier, a control box, piezoelectric ceramic, a second lock-in amplifier, a semiconductor laser, a light path system, a sample table, a piezoelectric scanning tube and a host. According to the light-induced force microscope system, the semiconductor laser is used, sine wave modulation is directly carried out on the semiconductor laser through the oscillator in the lock-in amplifier, and the light-induced force microscope system can accurately measure light force information at a needle point-sample position by using a common silicon needle point probe in the atmosphere. By analyzing the light force information, the light-induced force component can be qualitatively identified, and the rigidity, polarizability and other property information of the material can be reflected. According to the invention, accurate measurement of the light force signal on the surface of the two-dimensional material is realized, and a technology which is economical, simple in structure and convenient to operate is provided for identifying components and defects of the two-dimensional material in electronic devices, optoelectronic elements and sensors.

The invention relates to a current measurement method, electronic equipment and a readable storage medium. The method comprises the following steps: acquiring an initial resonant frequency of the quantum current sensor, and outputting a microwave modulation signal according to the initial resonant frequency; performing optical detection magnetic resonance measurement operation based on the microwave modulation signal, obtaining a measurement response signal for the microwave modulation signal, and demodulating the measurement response signal to obtain a demodulation component; when the demodulation component is not matched with the demodulation component target value, the PID parameter is adjusted, and the microwave frequency of the microwave modulation signal is adjusted based on the adjusted PID parameter until the demodulation component is matched with the demodulation component target value; a microwave frequency when the demodulation component matches the demodulation component target value is determined as a microwave resonance frequency, and a current measurement value is determined on the basis of the microwave resonance frequency. By adopting the method, the current measurement efficiency of the quantum current sensor can be improved.

According to various embodiments of the present disclosure, a method performed by a first device is provided, the method comprising the steps of: transmitting, to a second device, sequence information related to one specific subcarrier modulation sequence from among a plurality of subcarrier modulation sequences, the plurality of subcarrier modulation sequences being based on a square wave sequence; and receiving, from the second device, a modulation signal to which the specific subcarrier modulation sequence is applied.

The invention discloses a grid-connected inverter and a control method thereof, and belongs to the technical field of power electronics and new energy grid-connected control, and the method comprises the steps: obtaining voltage and current signals of the grid-connected inverter and a grid-side three-phase voltage; performing coordinate transformation on the acquired voltage and current signals, and performing voltage and current double-closed-loop decoupling control to obtain a d-axis modulation signal and a q-axis modulation signal; generating a three-phase fundamental wave modulation signal according to the d-axis modulation signal and the q-axis modulation signal; calculating a fundamental wave modulation degree; calculating a zero-sequence current component of the grid-side three-phase current; taking the fundamental wave modulation degree and the zero-sequence current component as input quantities, and outputting a third harmonic injection proportionality coefficient through a fuzzy controller; generating a third harmonic injection amount according to the third harmonic injection proportionality coefficient; and subtracting the third harmonic injection amount from the three-phase fundamental wave modulation signal to generate a third harmonic injection type modulation signal. According to the invention, dynamic adjustment along with power grid disturbance, load change or modulation degree fluctuation can be realized.

The application provides a kind of ice constant temperature dynamic mechanical property testing device, belongs to ice detection technical field, including launch subassembly, impact lever, incident support, incident lever, sample support, transmission support, transmission lever, data acquisition module and data processing module, the end face of impact lever towards incident lever is equipped with several spaced convex structures, the end face of incident lever towards impact lever is equipped with shaping piece, shaping piece is used to extend the rising time of incident stress wave that incident lever transmits to ice sample, the end face of incident lever towards ice sample is equipped with wave modulation module, wave modulation module is used to realize the wave impedance continuous gradient matching of incident stress wave from incident lever to ice sample, data processing module corrects the data collected by data acquisition module to obtain final incident wave strain and final transmission wave strain, and calculates the strain rate, stress and strain of ice sample.The application scheme improves the accuracy of ice constant temperature dynamic mechanical property test results.

This application relates to methods and apparatus for outputting a modulated signal for driving a switching output stage. A modulator circuit includes a digital modulator that receives an input signal modified by a correction signal and outputs the modulated signal. A feedback node receives a feedback signal of the output of the switching output stage and a first filter receives and filters an inverted version of the modulated signal to generate a reference signal, such that the reference signal has gain and phase matching to the feedback signal. The reference signal and the feedback signal are both applied to a summation node to generate an analog correction signal which is input to an ADC. An error loop filter is configured to filter the ADC output to generate the digital correction signal.

The invention belongs to the field of composite material preparation, and relates to a preparation method of a flexible vegetation-imitating green leaf camouflage material, which comprises the following steps: doping chrome green Cr2O3 particles in a polydimethylsiloxane (PDMS) matrix to form a bottom film with the appearance color similar to that of green vegetation, and then coating a layer of film doped with Au or Ag and other metal nanoparticles on the bottom film to obtain the flexible vegetation-imitating green leaf camouflage material. Therefore, the wave modulation method based on surface plasmon enhanced absorption is realized, the material can imitate the reflectivity of green vegetation in a near-infrared band, PDMS is taken as a matrix and doped with chrome green particles, so that the color of the film is similar to that of a green plant macroscopically, Ag nanorods doped in the upper PDMS coating can enable the chrome green coating to imitate a red edge effect, and the reflectivity of the green vegetation can be simulated in a near-infrared band. Vegetation is simulated in a near-infrared band. The two layers of films are compounded, so that the camouflage material and the vegetation green leaves have the same color and spectrum, and the preparation method and the material have very wide application prospects.

The invention relates to the related field of a wireless communication technology, in particular to a directional sound propagation method for an interphone loudspeaker, which realizes directional sound propagation, reduces noise pollution, has stronger confidentiality due to the fact that sound cannot be diffused all around, and realizes directional sound propagation of the interphone loudspeaker through an ultrasonic carrier modulation technology. According to the invention, sound directional propagation is realized on the basis of original hardware of a common interphone, the whole machine does not need to be reconstructed, the limitation that a traditional directional loudspeaker needs special hardware is broken through, the technical path is novel, and the realization cost of a directional propagation function is greatly reduced; and large-scale popularization and application of common interphones are facilitated.

A Delta-sigma (delta-sigma) device comprises a transducer (2) and a delta-sigma modulator (3), where the transducer (2) comprises: a sensing stage (100) for detecting a property of an environment (106) and an interface stage (101), where the sensing stage (100) is configured to detect the property of the environment (106); and the delta-sigma modulator (3) comprises: an input stage, a feed-forward low-pass filtering stage (102), an analog-to-digital encoder (104), an unfiltered in-modulator feedback path and a low-pass filtered in-modulator feedback path; wherein the input stage is connected to the interface stage (101) and comprises two subtraction stages (113, 114) of the input stage for receiving an unfiltered in-modulator feedback signal (109) and a low-pass filtered in-modulator feedback signal (110) and subtracting the unfiltered in-modulator feedback signal (109) and the low-pass filtered in-modulator feedback signal (110) from the sum of the one or more input converted signals (108), to obtain a delta error signal (111); the analog-to-digital encoder (104) converts the filtered delta error signal into a digital output signal dout (t) (112); the feedback path in the unfiltered modulator converts the dout (t) (112) into a feedback signal (109) in the unfiltered modulator; the low-pass filtering modulator internal feedback path converts the dout (t) (112) into a low-pass filtering modulator internal feedback signal (110).

The invention discloses a precipitation enhancement system and method based on electroacoustic low-frequency sound waves of an unmanned aerial vehicle, and is applied to the technical field of sound wave precipitation enhancement. Comprising an unmanned aerial vehicle flying platform, an airborne power supply module and an electroacoustic low-frequency sound wave generation subsystem, the airborne power supply module supplies power to the electroacoustic low-frequency sound wave generation subsystem, the electroacoustic low-frequency sound wave generation subsystem converts electric energy into strong sound waves in a specific frequency band, cloud droplet collision, combination and growth are promoted, and finally rainfall is formed; the electro-acoustic low-frequency sound wave generation subsystem comprises an electro-acoustic conversion unit used for converting electric energy into low-frequency strong sound waves; the sound wave modulation unit is used for regulating and controlling sound wave parameters; and the damping integrated unit is used for isolating vibration generated when the electro-acoustic conversion unit works. The unmanned aerial vehicle is used as an aerial maneuvering platform, electric energy is efficiently converted into strong sound waves in a specific low-frequency band, the strong sound waves directly act on water vapor particles in a cloud layer, collision, merging and growth are promoted through sound wave vibration, and precipitation increasing operation is achieved.

This invention discloses a vertical-cavity surface-emitting laser (VCSEL) and its fabrication method. The VCSEL comprises: a substrate; an epitaxial basic structure located on one side of the substrate; the epitaxial basic structure including multiple active regions stacked along the epitaxial growth direction; adjacent active regions connected by tunnel junctions; a dielectric layer located on the side of the epitaxial basic structure away from the substrate; and a standing-wave modulation layer interspersed within the epitaxial basic structure and disposed close to the dielectric layer. The standing-wave modulation layer is used to adjust the standing-wave distribution of the laser, so that the peaks in the standing-wave optical field deviate from the output cavity surface of the epitaxial basic structure; wherein the output cavity surface is the surface of the epitaxial basic structure away from the substrate. This reduces the absorption of photons by interface states, thereby achieving a higher COD threshold and ensuring that the device has a higher power density output.

A wireless transmit / receive unit, WTRU, can select a constellation from a set of constellations corresponding to a symbol configuration for indirect carrier modulation, ICM, based on at least one constellation performance efficacy indicator, each constellation performance efficacy indicator respectively corresponding to a constellation of the set of constellations, and use the selected constellation and symbol configuration to simultaneously harvest energy and transmit data.

The invention belongs to the technical field of power distribution network communication processing, and particularly relates to a multi-device converged communication processing method for power distribution network automation. Equipment sub-signals adopt single modulation and are distributed with different frequency bands, and a multi-channel transmission scheme is established by adopting a frequency division multiplexing carrier modulation method based on a power distribution network communication system; signal modulation processing based on a power distribution network transmission environment; and respectively performing transmission optimization on the data by using the sending end and the receiving end. On the basis of the existing transmission network, the information transmission efficiency and capability, especially the capability of multi-device joint communication processing, are further enhanced.

The invention relates to a superheterodyne transceiver system, which belongs to the technical field of millimeter wave and wireless radio frequency links, and comprises a transmitter and a receiver, the transmitter comprises a plurality of first chopping modulation modules used for modulating a plurality of paths of baseband signals to different intermediate frequency bands through a first chopping circuit to obtain a plurality of paths of different intermediate frequency signals; the first local oscillator source is used for generating a shared up-conversion local oscillator signal; the plurality of first frequency mixing modules are used for performing frequency mixing processing on the plurality of paths of intermediate frequency signals and the up-conversion local oscillator signals respectively so as to perform up-conversion on the intermediate frequency signals to an E wave band and obtain a plurality of paths of E wave band signals; the transmitting module is used for transmitting multiple paths of E-waveband signals; and the receiver is used for receiving the multiple paths of E-band signals and demodulating a target signal from the multiple paths of E-band signals. According to the invention, the demand on a local oscillator source is reduced, so that the complexity, power consumption and cost of the system are reduced.

The application belongs to the technical field of ocean exploration, and specifically discloses a seabed bottom type in-situ detection device and method. The device comprises an upper computer, a transmitter and a receiver. At the transmitter end, the application modulates selected initial identification information symbols into a low-frequency carrier frequency band in a multi-band linear frequency modulation manner to generate a low-frequency modulated wave, and then modulates the low-frequency modulated wave into a high-frequency carrier in an amplitude modulation manner to form a narrow underwater acoustic beam. At the receiver end, because different types of seabed have different self-demodulation capabilities and underwater sound dissipation characteristics at different bit positions of the identification information symbols, T-BOK demodulation is realized through low-frequency echo reception to obtain a three-state identification code, and the delay information of each bit of the three-state identification code is recorded. Through the three-state identification code demodulated by the low-frequency echo, the delay information of each bit of the three-state identification code, and a three-state identification code codebook generated in advance, the seabed bottom type and distribution characteristic parameters are obtained.

Autonomous stabilization of a GKP code by parametric comb modulation of microwave frequencies A microwave-range quantum superconducting circuit includes an energy-tunable Josephson junction element (8) connected to a portion of a linear passive circuit (6) exhibiting several resonant modes, the first-form Foster decomposition of which across the Josephson junction element (8) includes a target resonant mode having an impedance Z greater than 13 kOhms and a pulsation w.The energy of said Josephson junction element (8) is adjustable and modulated by at least two respective pulse trains in which the pulses are separated by a duration of 2π / w and have a width less than one-tenth of this duration, the amplitude of the pulses within each respective pulse train being modulated by a respective sinusoidal carrier and the pulse trains are shifted in pairs respectively by a duration Δt such that |sin(w*Δt)| is 13 kOhms / Z, so that the resonant mode of pulsation w stabilizes in one of two GKP states encoding a qubit. Fig.2.

The utility model relates to the technical field of tunable semiconductor laser absorption spectrums, in particular to a TDLAS (tunable diode laser absorption spectroscopy) hardware phase-locked circuit, which comprises a singlechip, a tunable semiconductor laser, a band-pass filter, a phase-locked amplification chip and a low-pass filter. A DAC of the single-chip microcomputer outputs a scanning signal modulated by superposing 40kHz sine waves to drive the tunable semiconductor laser, a light beam of the tunable semiconductor laser passes through the long-optical-path absorption cell and then is converted into an electric signal through the photodiode, and the electric signal output by the photodiode passes through the band-pass filter, the lock-in amplification chip and the low-pass filter and then is transmitted to the single-chip microcomputer. And a second harmonic signal is output to the ADC of the single-chip microcomputer. According to the utility model, a traditional DDS (signal generator) is omitted, so that the cost is effectively reduced; and when different modulation amplitude outputs are carried out, compared with a traditional DDS, the device is more sensitive, independent modulation of single gas in multi-component gas can be achieved, the sensitivity is higher, and production and application are more convenient.

The application discloses a modulation and power balance method of a hybrid cascaded H-bridge inverter and an extended topology system, belongs to the technical field of power electronic converters, and core comprises the following steps: constructing a thirteen-level basic topology with a DC side voltage ratio of 1:1:2:2, which is cascaded by two low-voltage H-bridge units and two high-voltage H-bridge units; adopting a hybrid modulation strategy, the high-voltage unit works at a fundamental frequency by using a staircase wave modulation to reduce loss, and the low-voltage unit uses an improved carrier phase-shifted PWM modulation based on a reconstructed laminated triangular carrier to eliminate reverse circulating current and improve the equivalent switching frequency; the high-voltage unit driving signals are cyclically exchanged with 1 / 4 output voltage period as a rotation period, so that power self-balance is realized; and a general extended topology scheme is provided, which is cascaded by n high-voltage modules and k low-voltage modules, avoids level loss under the constraint of k≥m, and can use the modulation and power balance logic of the basic topology.

The invention discloses an ultra-parallel microwave photon Isin machine system based on wavelength division multiplexing and an optimization method, and belongs to the technical field of photon calculation and combination optimization. The Isin machine system comprises a multi-wavelength light source module, a microwave modulation and wavelength division multiplexing coding module, a nonlinear calculation and evolution module and a demultiplexing and dynamic feedback module, all the modules are optically and electrically connected to form a closed-loop system, and different optimization problems can be coded to independent wavelength channels to achieve parallel solving. The optimization method is applied to the Isin machine system, and closed-loop optimization is completed through the steps of coupling matrix mapping, microwave modulation loading, nonlinear evolution, dynamic feedback control and the like. The method supports synchronous processing of 1024 optimization problems, and energy consumption of a single problem is lt; the method is mainly applied to the fields of logistics scheduling, financial modeling, communication network optimization and the like, and an efficient physical calculation solution is provided for a large-scale combination optimization problem.

The application provides a multi-target user detection synchronization method, system and storage medium based on a sweep frequency spread spectrum carrier modulation technology. A transmitting end preferably constructs a Gold sequence as a spread spectrum code by using an m sequence, modulates the Gold sequence on a periodic linear sweep frequency carrier in a BPSK mode by using an S2C modulation mode, and forms a synchronization header signal with a sharp autocorrelation peak and a low cross-correlation side lobe. A receiving end preliminarily positions the synchronization header by correlation detection, and then performs a de-skew processing on the received signal, multiplies the received signal with a local linear frequency modulation reference signal, and performs a band pass filtering, so as to convert the wideband sweep frequency signal into a single frequency signal, and greatly reduce the processing complexity. On this basis, the coarse synchronization utilizes the correlation detection combined with the maximum likelihood method to preliminarily time in the time domain, and the fine synchronization finely adjusts according to the frequency characteristics of the de-skewed signal. The method can still realize the robust multi-target signal detection and high-precision positioning in a complex underwater acoustic multipath environment, and has good engineering practicability.

The invention discloses a light wave modulation method and equipment. According to an exemplary embodiment, the light wave modulation method comprises the following steps: determining a modulation parameter of a light wave according to target dispersion or determining the modulation parameter of the light wave according to a target spectrum; calculating modulation parameters of ultrasonic waves based on the modulation parameters of the light waves; generating ultrasonic waves, the ultrasonic waves having the modulation parameters calculated for the ultrasonic waves; and modulating light waves through the ultrasonic waves. According to the regulation and control scheme based on the acousto-optic crystal, dispersion control and spectrum control are integrated into a single device, dispersion and spectrum control functions can be achieved through flexible adjustment of ultrasonic parameters, complex light path adjustment is not needed, operation is easy and convenient, work is stable and reliable, the performance limitation of a traditional element is effectively broken through, and the application range is wide. Accurate control of dispersion and spectrum of the ultrashort pulse laser is realized, and a brand new technical path is provided for high-performance regulation and control of the ultrashort pulse laser.

The invention discloses a method and device for identifying a voltage flicker source in a power distribution network based on SVMD-HistGBT, and relates to the field of electric energy quality monitoring, voltage flicker is divided into sine wave modulation type flicker, rectangular wave modulation type flicker and inter-harmonic modulation type flicker according to causes of the voltage flicker, and for the three typical types, the voltage flicker source in the power distribution network is identified. The sampling voltage is split into narrow-band intrinsic mode functions through successive variational mode decomposition, and feature extraction is carried out; and then, constructing a histogram gradient boosting tree classifier to learn three types of flickers, and realizing identification of the voltage flicker source in the high-proportion photovoltaic access power distribution network according to the extracted characteristics of the sampling voltage. According to the invention, different types of flicker signals can be effectively decomposed, so that identification of different voltage flicker sources is completed.

The invention provides a broadband digital precise control system and an implementation method. The implementation method comprises the following steps: a down-conversion unit completes down-conversion processing and three-path power division on an input radio frequency target signal; the data transmission and interface unit completes interaction with internal and external information; the intermediate-frequency signal modulation unit performs acquisition, delay modulation, Doppler modulation, convolution modulation, high-precision amplitude-phase modulation, inter-channel compensation, digital-to-analog conversion and the like on the intermediate-frequency signals, and finally completes target signal echo modulation and amplitude-phase consistency modulation of the three paths of intermediate-frequency signals; the main control unit completes initial configuration, information interaction, data storage and flow control of the equipment; and the up-conversion unit completes up-conversion processing and power control on the three paths of intermediate frequency signals according to the power control word, and finally realizes accurate positioning of a target angular position in the triple. According to the invention, amplitude and phase modulation of three paths of intermediate frequency signals can be completed in a digital domain, and accurate positioning of a target angular position in a triple is realized.

The invention provides a non-uniform double-pulse modulation method based on a TCM. The non-uniform double-pulse modulation method comprises the steps that 1, a non-uniform double-pulse period modulation model is constructed; 2, carrying out radar echo modulation analysis; 3, analyzing a pulse compression result; and step 4, regulation and control effect analysis based on a CFAR detector. According to the method, the key parameter of the time delay factor is innovatively introduced, the modulation flexibility and unpredictability are greatly improved through the collaborative design of three degrees of freedom, and the problems of insufficient flexibility and the like existing in a radar target feature regulation and control method are solved. Compared with a regulation and control method based on TCM uniform monopulse period modulation, the generated harmonic peak amplitude distribution is diversified, screening of regular signals by a radar CFAR detector is effectively avoided, and the number of effective harmonic peaks passing detection is remarkably increased. According to the invention, precise suppression or enhancement of specific-order harmonics can be realized, and a technical approach is provided for implementing flexible and dynamic radar target feature regulation and control.