393 results about "Radiation properties" patented technology

Embodiments of the present invention provide a therapeutic device. The therapeutic device includes an inner layer including a plurality of sensing locations and a plurality of stimulating locations constructed therewithin. Furthermore, the therapeutic device includes a plurality of stimulation elements located within the plurality of stimulating locations. The therapeutic device further includes a plurality of optical fibers including a plurality of respective first optical endpoints and a plurality of respective second optical endpoints, the plurality of first optical endpoints located within the plurality of sensing locations. Furthermore, the therapeutic device includes an optical sensor configured to receive electromagnetic radiation from the plurality of second optical endpoints. The therapeutic device also includes a control module configured to determine radiation characteristics of the electromagnetic radiation received by the optical sensor and activate one or more of the plurality of stimulation elements in correlation with the determined radiation characteristics.

The invention discloses a closed-loop self-adjusting method for online defect identification and real-time feedback in the additive manufacturing process of a titanium alloy component based on intelligent sensing, belongs to the field of laser additive manufacturing, and solves the key problems of insufficient defect identification capability, quality control lag and the like in the current additive manufacturing process. The method is based on a multi-mode sensor architecture, integrates an infrared thermal imager, a molten pool camera and a spectrum sensor, and synchronously monitors a molten pool thermal field, radiation characteristics and surface topography. Traditional image processing and signal analysis are adopted to extract defect features such as air holes and cracks, and calibration is implemented in combination with off-line detection such as industrial CT. The recognition result is analyzed in real time through the central control platform, causes are automatically diagnosed based on defect types and distribution characteristics, parameters such as laser power and scanning paths are dynamically adjusted by matching a preset control strategy, and defect suppression and online repair are achieved. And a closed-loop self-adaptive dynamic adjustment mechanism improves the forming quality and reliability. The method is suitable for aerospace and other scenes with extremely high requirements for the quality of large complex titanium alloy components.

The invention discloses a broadband scattering beam reconfigurable low RCS planar array antenna. The antenna array structurally comprises a metal radiation oscillator structure, a dielectric substrate, an offset line structure, a rectangular metal floor, a pin header, a slotted metal aluminum plate and a feed structure from top to bottom, the pin header penetrates through the dielectric substrate; the metal radiation array structure realizes phase regulation of the antenna unit on reflected electromagnetic waves and regulates the beam direction of scattered electromagnetic waves; the antenna array is composed of N * N antenna units, and N is greater than or equal to 2 and is a positive integer. According to the invention, broadband scattering phase reconstruction is realized, and the wide radiation characteristic of the antenna is realized by using the tight coupling design.

The invention relates to a coal field fire high-temperature area identification and judgment method. The coal field fire high-temperature area identification and judgment method comprises the following steps: S10, delimiting a target area of a coal field, and respectively acquiring various data in the target area; s20, establishing a time rule model of temperature change through thermal-time sequence coupling; s30, establishing an incidence relation between temperature and radiation characteristics through thermal-spectral coupling; s40, establishing a chemical reaction association relationship between temperature and gas release through heat-gas coupling; and S50, constructing a three-dimensional feature space through the integration of S20, S30 and S40, classifying the three-dimensional feature space through machine learning, and outputting the probability corresponding to the high-temperature type. The coal field fire high-temperature area identification and judgment method has the advantages that high-precision and strong-anti-interference high-temperature area identification is achieved, and reliable technical support is provided for coal field fire monitoring.

The invention provides an antenna assembly and electronic equipment. The electronic equipment comprises a middle frame, the middle frame comprises a frame and a middle plate, the frame surrounds the middle plate, and the frame comprises a first edge extending in the first direction, a second edge extending in the second direction and a bending area connected to the first edge and the second edge; the antenna assembly comprises a first antenna unit and a second antenna unit, the first antenna unit and the second antenna unit are arranged on the two sides of the bending area respectively, the first antenna unit is arranged on the first side, and the second antenna unit is arranged on the second side; the orthographic projection of the first antenna unit on the plane where the middle plate is located and the orthographic projection of the second antenna unit on the plane where the middle plate is located are not overlapped, so that the antenna assembly has better radiation characteristics, and the electronic equipment has better communication performance.

The invention discloses an ultra-low profile broadband circularly polarized microstrip patch antenna array and a design method thereof, the antenna array is constructed on a single-layer thin dielectric substrate, and an antenna unit is formed by combining a substrate integrated waveguide resonant cavity and a microstrip patch resonator embedded in the center of the substrate integrated waveguide resonant cavity. On the premise that the antenna size is not increased, the combination of the double resonators is realized. The adjacent antenna units are arranged at zero intervals and share the metal columns surrounding the edge of the substrate integrated waveguide resonant cavity. Two pairs of polarization orthogonal degenerate modes with similar resonance characteristics are introduced by utilizing a central gap, an annular gap and four symmetrical gaps connected with the central gap and the annular gap, so that four resonance points with similar radiation characteristics and similar resonance frequencies and two axial ratio zero points are formed, and synchronous broadening of impedance bandwidth and axial ratio bandwidth is realized. In addition, a radiation zero point is generated at the position close to the upper edge of the passband along the radiation counteracting effect on the two sides of the annular gap, and therefore the out-of-band rejection performance of the antenna is improved.

The invention belongs to the field of electromagnetic numerical methods, and relates to a rapid simulation solving method for radiation characteristics of a large-scale array antenna. In the simulation solution process of the large-scale array antenna, a regional decomposition technology is adopted: firstly, m * n antenna units in the center of the large-scale array antenna are selected as small-scale array antennas; then, establishing a unit model of an antenna array, and performing corresponding simulation solution for a small-scale array antenna according to the arrangement of the array; thirdly, constructing a matrix equation for finite element region decomposition solution, and obtaining a far field of the small-scale antenna array through matrix multiplexing simulation solution; further, a far field of a large-scale array antenna is expanded; and finally, obtaining a radiation far-field parameter result of any amplitude phase distribution by changing feed source parameters of the large-scale array antenna excitation unit according to actual requirements. According to the method, the radiation characteristics of the large-scale array antenna can be quickly simulated and analyzed only by carrying out actual simulation calculation on a small-scale antenna array.

The invention relates to the technical field of array antennas, in particular to a sparse linear array beam forming method and system with unit rotation and mutual coupling considered. Array elements are obtained, Euler angle derivation is carried out on rotation of the array elements around the z axis, and a radiation electric field after rotation is obtained; setting a beam forming target according to the electric field of the radiation field; according to a beam forming target, optimizing the position, the rotation angle and the excitation phase of an array element by adopting a random optimization algorithm, and generating an initial beam scheme; an active directional diagram is extracted from the initial beam scheme according to full-wave simulation, the active directional diagram is combined with a CAL-SAPSO algorithm to optimize the array element position, the rotation angle and the excitation phase, and a final array element directional diagram is generated; according to the invention, by introducing array element rotation and considering a mutual coupling effect, efficient beamforming of the sparse wiring array is realized, the radiation characteristic of the antenna array can be adjusted more finely, the peak side lobe level and the cross polarization level are effectively reduced, and the overall performance of the system is improved.

Embodiments of the present application provide a foldable electronic device, including an antenna. The antenna utilizes the first frame and the second frame provided in the foldable electronic device as radiators. A partial frame of the first frame serves as a feeding stub, and a partial frame of the second frame serves as a parasitic stub. By providing a slit in the parasitic stub, the radiation aperture of the parasitic stub is increased to improve the radiation characteristics of the antenna, so that the electronic device has better communication performance.

The invention provides a foldable electronic device. The foldable electronic device comprises an antenna. The working frequency band of the antenna comprises a satellite communication frequency band. The antenna comprises a first radiator and a second radiator. A part of the conductive frame of the first shell serves as a first radiator, and a part of the conductive frame of the second shell serves as a second radiator. When the foldable electronic device is in the unfolded state, the parasitic resonance generated by the second radiator is close to the first resonance generated by the first radiator, and the radiation characteristic of the antenna in the first resonance is improved through the parasitic resonance, so that a user has better communication quality during satellite communication, and the experience of the user during satellite communication can be improved.

The invention discloses a data-driven high-infrared-radiation-characteristic high-entropy rare earth tantalate material screening method and application, and belongs to the technical field of thermal barrier coating materials. The method aims at breaking through the infrared radiation performance bottleneck of a traditional rare earth tantalate ceramic material, a high-precision prediction model of the infrared emissivity of the rare earth tantalate is innovatively developed by constructing a multi-system common data set, and rapid evaluation of the infrared spectral characteristics of the A-site high-entropy rare earth tantalate RE3TaO7 material is achieved. On the basis of the model, a multi-element rare earth tantalate system which comprises (Y < 0.2 > Dy < 0.2 > Gd < 0.2 > Sm < 0.2 > Nd < 0.2 >) < 3 > TaO7 and (Nd < 0.2 > Eu < 0.2 > Dy < 0.2 > Er < 0.2 > Yb < 0.2 >) < 3 > TaO7 and has excellent infrared radiation characteristics is successfully screened out. According to the method, the limitation of traditional small sample material research is broken through through big data modeling, and an efficient theoretical design normal form is provided for developing a novel high-entropy infrared radiation material.

The invention relates to a non-Lambert surface emissivity inversion method, belongs to the technical field of infrared optical measurement and radiation modeling, solves the technical problems of low precision and poor model stability of non-Lambert surface emissivity inversion, and comprises the following steps: measuring original radiation intensity of a non-Lambert surface of a to-be-tested material in different emergent directions; converting the original radiation intensity into directional reflectivity; on the basis of the generalized Lorentz function, diffuse reflection background items are superposed, and a physical prior model is constructed; physical constraint is carried out on the physical prior model parameters; the parameter residual network generates a parameter field, and the parameter field is input into the optimized physical prior model; and carrying out hemispherical integration, and converting the directional reflectivity into directional-hemispherical emissivity. The device and the method are used for infrared thermal imaging measurement, material radiation characteristic characterization and engineering detection in a complex environment.

The invention relates to the technical field of jet flow flame disaster-causing parameter prediction, and discloses a jet flow diffusion flame size and radiation characteristic prediction method and system based on a machine learning method. The method comprises the following steps: constructing a flame size empirical model based on experimental data characteristics; constructing a machine learning model to predict flame height, width and lifting height, and combining the empirical model as a loss function with the empirical model; mass flow is determined according to the gas parameters, and a flame dwell time and radiation fraction calculation model is established in combination with a flame width prediction model; and establishing a flame total radiation power calculation model and a radiation source weighted distribution model, and solving the radiation heat flux by combining a flame height and lifting height prediction model. The prediction method provided by the invention can be used for predicting the sizes and radiation characteristics of jet diffusion flames with different scales under various working conditions, and has the characteristics of high prediction efficiency, high prediction precision, wide application range and the like.

The invention designs a short-wave over-the-horizon communication comprehensive simulation analysis method for the problems of cascade and comprehensive analysis of antenna radiation characteristics and radio wave propagation environments. The method comprises the steps of performing radiation characteristic simulation on a short-wave antenna, constructing an ionosphere model, simulating a propagation path of a short-wave signal in an ionosphere by adopting a ray tracing technology, integrating antenna characteristics, an ionosphere environment and a propagation mechanism, and calculating falling area energy distribution of the signal. And comprehensive evaluation and analysis of the reachable range of short-wave beyond-visual-range communication are realized. According to the method, the signal propagation path and fading characteristics of the signal from the radiation source to the receiving tail end can be comprehensively mastered, and guidance and basis are provided for antenna selection, erection, coverage area analysis and communication quality estimation in practical engineering application of short-wave beyond visual range communication.

The invention discloses a field-circuit co-simulation method for radiation emission of an electronic product. The simulation method comprises the following steps: importing a PCB diagram; and designing the PCB diagram by using cartographic software according to a schematic diagram of an electronic product. And step S2, SIwave parameter extraction: carrying out SYZ parameter extraction on the key device of the PCB diagram. And step S3, Designer field-circuit co-simulation: carrying out simulation on the board-level far / near field radiation characteristics of the electronic product so as to determine the board-level radiation emission characteristics of the circuit board. And S4, performing HFSS field-to-field link simulation, and performing simulation on the radiation characteristics of the electronic product so as to complete product-level radiation emission simulation analysis. The method has the advantages that the simulation method is easy to achieve, the noise source deviation degree is low, the simulation result confidence degree is high, evaluation of the electromagnetic compatibility radiation emission level of the product is rapidly achieved, and a reliable theoretical basis is provided for optimization of product design and fault positioning.

The invention discloses an end-fire millimeter wave antenna with a dual-polarization filtering characteristic, which comprises a horizontal polarization end-fire filtering antenna unit and a vertical polarization end-fire filtering antenna unit, and the horizontal polarization end-fire filtering antenna unit and the vertical polarization end-fire filtering antenna unit form a shared aperture to realize fusion. The end-on-fire structure has the remarkable advantages that firstly, compared with an edge-on-fire antenna, the end-on-fire antenna can provide a relatively balanced radiation characteristic in a more compact space, so that interference of a metal back shell in the terminal equipment on a radiation mode is effectively avoided, and the radiation efficiency and the performance stability of the antenna are remarkably improved; secondly, the design of the end-fire dual-polarization filtering antenna is realized by adopting a fusion mode, the integration performance of the antenna and a radio frequency front-end system is optimized, and the antenna has remarkable advantages in the aspects of reducing the size, improving the bandwidth, enhancing the anti-interference capability, improving the operation stability and the like; and a brand new technical scheme is provided for efficient operation of the radio frequency front end in the terminal equipment.

The invention discloses a method for detecting radiation characteristics of a to-be-detected target in a shallow sea waveguide environment, which comprises the following steps of: 1, extracting real normal wave modal parameters of a sound source radiation signal in the shallow sea waveguide environment through an orthogonal constraint modal search method according to data received by a vertical array; 2, according to the real normal wave modal parameters, through a normal wave expression in a waveguide environment, performing inversion to obtain a sound field of the whole shallow sea waveguide; and step 3, acquiring sound field information required in the sound field of the shallow sea waveguide, mapping the sound source information into the free space by using the reciprocity theorem, realizing sound field migration from the shallow sea waveguide to the free space, and further acquiring the radiation characteristics of the target to be measured in the free space. The method is used for obtaining the radiation characteristics of the to-be-measured target in the free space according to the data received by the vertical array.

The invention relates to the technical field of impact testing, in particular to a method for detecting the impact resistance of a building material. The method comprises the following steps: firstly, acquiring an energy field frame pattern sequence and a strain field frame pattern sequence of an impact surface of a to-be-tested building material in each impact test, and dividing the impact surface of the to-be-tested building material into a plurality of radiation areas; then analyzing and acquiring an impact radiation difference coefficient of each impact test and a heterogeneity coefficient of the to-be-tested building material; and evaluating the impact resistance of the building material to be tested according to the impact radiation difference coefficient and the impact result of each impact test in combination with the heterogeneity coefficient of the building material to be tested. In combination with the radiation characteristics of the shock waves, the energy and strain influence of the impact on each radiation area in the building material to be tested is analyzed, and the heterogeneity of the building material to be tested is evaluated, so that the impact resistance of the building material to be tested is accurately evaluated in combination with the influence of the heterogeneity on the critical impact force of the impact resistance of the material.

The invention relates to a method (100) and a device for analyzing the radiation characteristics of a motor vehicle, wherein the method (100) comprises acquiring (110) vehicle characteristics of a motor vehicle, acquiring (120) radiation characteristics of at least one transmitter-receiver of the motor vehicle, evaluating (160) the vehicle characteristics and the radiation characteristics and providing (170) a reference for positioning the transmitter-receiver based on the evaluation.

The invention relates to the technical field of alloy materials, and provides a low-activation high-strength anti-radiation high-entropy alloy and a preparation method thereof. The components of the alloy are (Fe < 3 > < 0.4 > Cr < 3 > V < 3 > < 0.3 > Ti < 3.0 > Ta < 3.0 > W < 3.0 >) < 100-x > C < x >, and x is larger than or equal to 0.5 and smaller than or equal to 7. The yield strength of the high-entropy alloy at the room temperature is larger than 1300 MPa, the plastic deformation amount is 15% or above, the room-temperature brittleness is greatly relieved, and compared with an existing low-activation high-entropy alloy, the low-activation high-entropy alloy has the advantages of being high in strength and toughness, low in cost and the like. In addition, after high-energy low-flux He plasma irradiation, the anti-irradiation performance of the alloy is improved, and the mechanical performance and the irradiation performance of the material can be regulated and controlled through alloy components. The low-activation high-entropy alloy serves as a nuclear material of a fusion reactor and a new-generation fission reactor, the problems that an existing traditional low-activation nuclear material is high in cost, insufficient in mechanical property and the like are solved, and application and development of nuclear energy in the fields of aviation and national defense can be further promoted.

The invention relates to a preparation method of a flexible film for dynamically adjusting infrared emissivity, and belongs to the technical field of dynamic adjustment of infrared radiation characteristics. The preparation method comprises the following operation steps: (1) uniformly mixing the basic component A and the reaction component B at room temperature; (2) defoaming the mixed solution, and pouring the mixed solution on a flat plate for self-leveling; (3) curing to obtain a polymer film; (4) stretching and fixing the polymer film, and sequentially plating an adhesion layer film and a functional layer film on the surface of the polymer film by using an electron beam evaporation coating technology; the functional layer film is made of a low-emissivity material; and (5) reducing the strain spontaneous release polymer film to an initial length to obtain the variable-emissivity flexible film with a wrinkle structure on the surface. The size and morphology change of the wrinkle structure changes the propagation path of the electromagnetic wave, and changes the area ratio of the high-emissivity material to the low-emissivity material, thereby changing the surface emissivity of the material. The infrared radiation temperature adjustment amplitude of the flexible film is 40 DEG C, and the flexible film has a good dynamic infrared camouflage function.

Disclosed in the present invention is a visual monitoring method for cross-section temperature fields and radiation characteristics of boiler furnaces by combining radiation images and spectra. Image detectors can be directly inserted into observation holes of a boiler to acquire flame image data, so that when the detection system is applied to a power station boiler, extra holes are not required to be drilled, and therefore, there is no risk that the strength of a furnace wall of the boiler is reduced by drilling holes. According to cross-section temperature fields of a furnace measured by the detection system, the state of combustion in the furnace can be accurately judged, which can play an accurate and effective guiding role in boiler combustion control, and reduce the temperature deviation in each combustion area of the boiler so as to keep the boiler running smoothly, thereby improving the combustion efficiency of the boiler.

The invention discloses a method and system for testing electromagnetic radiation characteristics of an IGBT module for a converter valve, and the method comprises the steps: selecting an inductive load connection mode according to the position of an IGBT to be tested during testing: testing an upper IGBT, and connecting the two ends of an inductive load with a first wiring terminal and a second wiring terminal (the first wiring terminal is a neutral point between the upper IGBT and a lower IGBT) of the converter valve; and when the lower tube IGBT is tested, the first wiring terminal and the positive terminal of the bus capacitor are connected. A combined electromagnetic field probe is arranged around the IGBT to be detected, a probe shell is grounded, and a lead is connected with a signal conversion device. Firstly, a bus capacitor is charged to a stable voltage, and environmental background noise is collected by a probe when no gate pole is triggered. And pulse parameters are set by the upper computer and are sent to the driving board through the optical fiber to trigger the IGBT double-pulse action. Electric signals output by the probe are converted into optical signals through the photoelectric converter and transmitted to external equipment through the optical fiber to be restored. And subtracting background noise from a double-pulse measurement result, extracting a net radiation electromagnetic signal, and separating electromagnetic interference signals in different processes according to the switching time of the IGBT. The invention aims to accurately measure the radiation electromagnetic interference signal of the IGBT in the converter valve module in the switching-on, switching-off and diode follow current processes, and provides a basis for the electromagnetic compatibility design and shielding reinforcement of the converter valve module.

The invention belongs to the technical field of infrared signals, and discloses an infrared target full-life-cycle end-to-end detection efficiency evaluation method, which comprises the following steps of: firstly, building detection scenes such as a target, a detection platform, a load and the sun, including elements such as a target full-process motion trail, a satellite orbit and observation geometry; performing conversion from a target coordinate system to a load image coordinate in a detection scene to realize sub-pixel-level target geometric simulation; constructing a finite element three-dimensional model of the target, calculating an instantaneous equilibrium temperature field of the target, and calculating full life cycle radiation characteristics of the target according to data such as the temperature field and the projection area; obtaining an infrared target and background gray scale through an infrared load radiation response model, and forming a detection image sequence; and finally, evaluating the dynamic detection efficiency according to the target gray value of the image end and the signal-to-noise ratio of the noise. The method can comprehensively and accurately describe the dynamic process of the detection efficiency of the infrared load on the dark and weak target along with time and scene changes, and is suitable for the fields of spaceflight and aviation.

The invention discloses an aircraft skin-tail flame full flow field coupled infrared radiation characteristic simulation method, which comprises the following steps of: drawing a fuselage and an external flow field area, and establishing an aircraft skin-tail flame full flow field model; aircraft flight parameters and engine parameters are obtained, flow field boundary conditions are set according to the aircraft flight parameters and the engine parameters, flow field simulation is carried out, and aircraft skin surface heat flux density and tail flame gas temperature distribution are calculated; performing solid heat conduction simulation by taking the heat flux density on the surface of the aircraft skin as a second type of boundary condition, and calculating temperature distribution on the surface of the aircraft skin; respectively establishing infrared emissivity models of the skin surface and the tail flame of the aircraft; and combining the obtained tail flame gas temperature distribution, the aircraft skin surface temperature distribution and the infrared emissivity model to calculate the infrared radiation characteristics of the aircraft skin surface and the tail flame. By utilizing the method, the simulation accuracy and precision of the infrared radiation characteristics of the airplane can be improved.

The invention discloses an airborne equipment ground verification method based on situation construction, and belongs to the field of semi-physical simulation testing. The method comprises the following steps: generating situation information of a carrier aircraft and a friend aircraft according to a target motion track; calculating atmospheric transmission characteristics between the target and the airborne equipment in combination with the situation information; based on the influence of the atmospheric transmission characteristics on the target, correcting the actually collected target intrinsic radiation parameter to obtain the target radiation brightness received by the airborne photoelectric equipment; infrared characteristics of the sky background are calculated; quantification and display of infrared radiation; and carrying out semi-physical simulation verification based on the situation data and the infrared scene. According to the method, outfield actual measurement data are fully utilized, situation information is constructed from an airborne equipment use scene, target radiation characteristic collection, motion characteristic modeling and a semi-physical simulation test are organically combined, and a controllable and repeatable ground verification means is provided for airborne equipment on the premise that the simulation confidence is effectively improved.

The invention discloses a power module near-field radiation characteristic simulation analysis method, and belongs to the technical field of electromagnetic compatibility. According to the method, aiming at the near-field radiation characteristic problem of the power supply module, a power supply module PCB full-wave three-dimensional numerical simulation model is built by using CST, and the near-field radiation characteristics of the power supply module PCB under different output end parameter configurations are obtained through simulation by changing the filter inductance and capacitance values of the output end of the power supply module. And the influence of different PCB grounding layer segmentation modes on the near-field radiation characteristics of the power supply module is analyzed, and a reference basis is provided for subsequent CAN node module PCB optimization.

We disclose an ultrawide-band (UWB) dual polarization three-dimensional (3D) tapered aperture Vivaldi antenna. It is generally comprised of a radiator having two pairs of tapering arms, each pair corresponding to a different polarization and the tapering arms spaced thereof closest to one another at a feed point location of the antenna and taper outwardly in opposite directions, thus forming a 3D Vivaldi antenna aperture therebetween; and a dual feed balun connecting to each of the two pairs of tapering arms and providing a separate channel for each of the polarizations. Embodiments of our antenna have been designed and simulated using full-wave electromagnetics commercial software. The results for our antennas demonstrate over 20:1 operating bandwidth with good radiation characteristics and very low cross polarization.

The invention relates to a microstrip patch antenna based on an antipodal double-helix groove, which comprises the antipodal double-helix groove, a patch, a substrate, a grounding plate and a coaxial probe, and is characterized in that the substrate is mounted on the grounding plate, the patch is mounted on the substrate, the antipodal double-helix groove is formed in the patch, and the coaxial probe sequentially penetrates through the grounding plate, the substrate and the patch; the coaxial probe is used for feeding the patch, and a radio frequency electromagnetic field is generated between the patch and the grounding plate. According to the microstrip patch antenna, the antipodal double-spiral grooves are formed, the path length of current flowing through the patch is increased, the resonant frequency of the antenna is reduced to a large extent, meanwhile, the good radiation characteristic is kept, the antenna radiation efficiency is high, the directional diagram is regular, and the electrical size of the microstrip patch antenna is reduced while the high radiation efficiency is kept.

The invention discloses an electromechanical system integrated broadband electromagnetic radiation characteristic modeling method based on cable current and electrical equipment near field test data, comprising the following steps: 1) modeling broadband radiation characteristics of each strong electromagnetic equipment of an electromechanical system, 2) modeling the wide-frequency-band radiation characteristics of interconnection cables among the strong electromagnetic devices of the electromechanical system to obtain a radiation electric field # imgabs1 # generated by the cables; 3) carrying out vector superposition on the radiation electric field # imgabs2 # generated by the strong electromagnetic devices and the radiation electric field # imgabs3 # generated by the cables to obtain a radiation electric field # imgabs2 # generated by the strong electromagnetic devices and a radiation electric field # imgabs1 # generated by the cables, and carrying out vector superposition on the radiation electric field # imgabs2 # generated by the strong electromagnetic devices and the radiation electric field # imgabs3 # generated by the cables; and 4) superposing the radiation electric field # imgabs5 # of the electromechanical system with the relative error between the radiation electric field and the test electric field to obtain a radiation electric field test value of the electromechanical system. According to the method, the system-level integrated radiation interference characteristic model of the electromechanical system can be effectively established, and the radiation field distribution of the electromechanical system in a large equipment platform can be quickly predicted.