705 results about "Sideband" patented technology

The invention relates to the technical field of defect detection, in particular to a heat-conducting adhesive tape defect detection method and system based on machine vision, and the method comprises the following steps: obtaining a surface image of a heat-conducting adhesive tape, extracting a texture trend and marking an aggregation block, adjusting the trend and offset of a connecting line segment, and analyzing the angle change of a sideband node. And recognizing a skeleton trend reverse section and closing a boundary, and extracting a continuous direction changing region to obtain a defect structure image annotation layer. According to the method, the turning position in the sideband region is extracted by constructing the direction aggregation graph of the texture aggregation block, enhancing the direction identification of the direction of the regional texture, combining the grouping organization and coordinate offset processing of the line segment path, enhancing the continuous association of the image structure, and by means of the repeated distribution characteristic of the angle mutation node; and through a skeleton trend reverse paragraph and boundary closing mode, an identification range of a structure disturbance block is expanded, and coherent tracking and multi-level labeling of a structure abnormal region are completed by combining a spatial relationship between a contour trend difference and a turning point.

The invention discloses a traditional Chinese medicine internal medicine deficiency syndrome conditioning effect evaluation method and system based on a wearable device, and relates to the technical field of traditional Chinese medicine clinical informationization, and the method comprises the following steps: S1, building an electrode skin complex impedance time-frequency fingerprint, executing full-band sweep frequency perturbation, collecting complex impedance data in a continuous monitoring period, and carrying out the detection of the complex impedance time-frequency fingerprint; extracting resonance peak group and sideband coupling path information, and generating a self-excitation risk spectrum as a response reconstruction reference; and S2, performing anti-fact playback based on the self-excitation risk spectrum, replaying the conductance response in a non-resonance interval, comparing a stripping environment drift signal with contact pressure noise through the risk spectrum, and extracting purified anchor point data as an interface feature calibration reference. Abnormal signal recognition and positioning are achieved through complex impedance time-frequency fingerprints, self-excitation risk spectrums, anti-fact playback and micro-capacitance imaging, interference field regulation and control and self-adaptive impedance control are combined, the accuracy and stability of traditional Chinese medicine deficiency syndrome conditioning evaluation are improved, and the method has the high anti-interference capacity and the intelligent characteristic.

The invention discloses a steam turbine regulating valve state evaluation method, and belongs to the technical field of thermal power plant steam turbine valve state monitoring, and the method comprises the steps: collecting the video stream data and operation data of a to-be-evaluated steam turbine regulating valve rod, recognizing the contour of the valve rod based on a YOLOv5 model according to the video stream data, and outputting the feature points of the valve rod; tracking the two-dimensional coordinates of the feature points of the valve rod to calculate the vibration parameters of the valve rod; the method comprises the following steps: calculating a Pearson correlation coefficient of operation data, screening vibration parameters related to a jam fault to generate a time domain displacement sequence, performing time alignment with the operation data, performing fast Fourier transform to obtain a frequency spectrum, and identifying a dominant frequency component, a frequency multiplication component and a sideband frequency; calculating a frequency deviation and an energy distribution difference based on a preset reference spectrum library; and judging the jam grade according to the frequency deviation and the energy distribution difference. The technical problem that the jamming fault level cannot be accurately quantified by an existing turbine regulating valve state monitoring method is solved.

The invention relates to the technical field of network communication, in particular to a tourist group non-inductive cross-AP roaming method based on multi-stream graph neural network optimization hierarchical reinforcement learning. Comprising the steps of group identification and Bluetooth sideband control establishment, multi-stream scene graph modeling and foresight anchor point labeling, opportunity window inference and group-level constraint projection, HRL high-level sub-target planning, HRL low-level sideband collaborative execution, steady-state shaping, congestion suppression, rollback bundling and the like. Group movement and session states are sensed and represented in a unified manner at a network side, a cross-AP switching plan with a controllable time sequence is generated for groups rather than individuals, and resources and time slots of Bluetooth and Wi-Fi are coordinated, so that low-interruption, low-delay and consistent non-inductive roaming experience is realized in a process that the groups pass through boundaries of adjacent cells.

A riser card includes a circuit board and first, second, and third connectors. The first and second connectors are positioned at bottom and top edges of the circuit board, respectively. The third connector is mounted to a face of the circuit board. Such riser card may be mounted on a primary system board such that the first connector is detachably connected to a first complementary connector of the primary system board with the circuit board perpendicular to the primary system board, and the first connector receives power, data, and sideband signals from the first complementary connector. The second and third connectors may mate with second and third complementary connectors of an expansion card oriented parallel to the circuit board and a stackable secondary riser card oriented perpendicular to the circuit board, respectively. The riser card communicates power and sideband signals to the stackable secondary riser card via the third connector.

The invention provides a wind turbine generator routing inspection method, a medium and equipment, and relates to the technical field of wind turbine generator routing inspection, a distributed communication architecture comprising a global layer, a local layer and an individual layer is constructed, and after a routing inspection task is received, a routing inspection line is determined and synchronized to a control terminal of an unmanned aerial vehicle cluster for routing inspection path planning; the method comprises the following steps: extracting modulation sideband characteristics of a gear box vibration signal, setting a fault mode identification matrix in combination with a bearing temperature gradient, collecting tower inclination angle dynamic change and foundation settlement micro-displacement, taking an edge calculation node corresponding to a wind turbine generator component as a participant, and drawing up an inspection node sequence under multi-round game iteration; and carrying out routing inspection navigation constraint in the wind turbine generator map. According to the method, the technical problems of poor inspection path adaptability and low coverage efficiency caused by lack of a multi-source data fusion and dynamic optimization mechanism in inspection task planning in the prior art are solved, and the inspection adaptability and coverage rate of the wind turbine generator are remarkably improved.

Disclosed herein is an optical frequency comb generator for a distributed acoustic anomaly detection system. The system can include a continuous wave frequency modulated laser source configured to generate a laser signal. The system can include an acousto-optical modulator configured to modulate the laser signal by altering an amplitude and / or frequency of the laser signal based on an RF drive signal applied to the AOM, and to output an optical pulse with multiple frequency sidebands based on the modulation. The output can form an optical frequency comb usable detecting and locating acoustic anomalies within a structure under observation.

The invention relates to the technical field of belt conveyor auscultation, and discloses a belt conveyor auscultation abnormity management method based on comparative learning and time sequence modeling, comprising the following steps: step 1, acquiring operation sound and equipment parameters, extracting frame features and acquiring a voiceprint baseline; 2, the carrier roller synchronization frequency is calculated, and period and sideband fingerprint prototype vectors are constructed; step 3, inputting the frame feature and the fingerprint prototype vector into a contrast learning network to obtain a contrast embedded vector and a time sequence feature vector; 4, the time sequence modeling network outputs three types of probabilities and classification original output values; step 5, calculating an abnormal score, generating an abnormal event and determining a grade; step 6, calculating a priority score and distributing a work order; and 7, backfilling the disposal information, calculating the total cost and storing the total cost. According to the invention, accurate detection, hierarchical management and operation and maintenance closed-loop processing of abnormal operation of the belt conveyor are realized.

The invention relates to the technical field of permanent magnet synchronous motor state monitoring, and discloses a permanent magnet synchronous motor bearing state monitoring method and system based on stator current characteristics and a storage medium, and the method comprises the steps: building a stator current model under bearing degradation, and recognizing a fundamental frequency sideband component caused by air gap eccentricity and load vibration; extracting a characteristic frequency amplitude, and defining characteristic quantities K1 and K2 with working condition robustness; and a comprehensive state monitoring index W is constructed through weighted fusion, and quantitative evaluation of the bearing degradation degree is realized. The method does not need additional sensors, adapts to variable working condition operation, has early degradation identification capability, is high in monitoring precision and robustness, can realize online continuous monitoring and early warning, and is suitable for intelligent maintenance and safe operation guarantee of various PMSM systems.

This invention relates to the field of radio frequency (RF) power supplies, specifically to an RF power supply frequency tuning dynamic tracking method and system. The method includes the following steps executed sequentially: S1: Generating a frequency-modulated signal based on an initial carrier frequency and the frequency of a preset modulation signal; S2: Coupled sampling of the RF signal output from the RF power supply after power amplification, filtering the sampled signal, extracting the corresponding signal components, and calculating the corresponding reflection coefficient amplitudes; S3: Comparing the corresponding reflection coefficient amplitudes and selecting the minimum reflection coefficient amplitude; S4: Using the frequency corresponding to the minimum reflection coefficient amplitude as the new carrier frequency, and obtaining a new first sideband frequency and a second sideband frequency based on the new carrier frequency; S5: Repeating steps S1 to S4 based on the updated frequencies. This solution, through iterative updates of the carrier frequency and sideband frequency, possesses the ability to detect and track the reflection coefficient amplitude in real time, and significantly shortens the tuning time.

The invention relates to a register access signal conversion and transmission method, a chip and a system on chip. The method comprises the following steps: receiving a register access request time sequence signal from an APB interface of a local chip; generating a UCIe sideband register access request data packet according to the register access request time sequence signal; and sending the UCIe sideband register access request data packet to a target layer. The chip comprises a conversion module which is located in a protocol layer of the chip and used for receiving a register access request time sequence signal from an APB interface; generating a UCIe sideband register access request data packet according to the register access request time sequence signal; and sending the UCIe sideband register access request data packet. According to the invention, the integration of the system-on-chip is facilitated, the compatibility of the system-on-chip composed of small chips is improved, so that the system-on-chip can conveniently access the local small chips and cross-chip registers, and the function specified by a UCIe protocol sideband is realized.

The invention relates to the field of radio frequency power supplies, in particular to a radio frequency power supply frequency tuning dynamic tracking method and system, and the method comprises the following steps: S1, generating a frequency modulation signal based on the initial carrier frequency and the frequency of a preset modulation signal; s2, carrying out coupling sampling on the radio frequency signal which is output by the radio frequency power supply and is subjected to power amplification, carrying out filtering processing on the sampled signal, extracting corresponding signal components, and respectively calculating corresponding reflection coefficient amplitudes; s3, the corresponding reflection coefficient amplitudes are compared, and the minimum reflection coefficient amplitude is selected; s4, taking the frequency corresponding to the minimum reflection coefficient amplitude as a new carrier frequency, and obtaining a new first sideband frequency and a second sideband frequency based on the new carrier frequency; and S5, repeatedly executing the steps S1 to S4 according to the updated frequency. According to the scheme, through loop iteration updating of the carrier frequency and the sideband frequency, the real-time detection and tracking capability of the reflection coefficient amplitude is achieved, and the tuning time is remarkably shortened.

An abnormality diagnosis device performs determination for at least one of abnormality of an electric motor driven by an inverter driven at a predetermined operation frequency and abnormality of a motive power transmission mechanism which transmits motive power from the electric motor to a load, wherein spectrum peaks extracted through FFT analysis of detected current of the electric motor are analyzed, and frequencies of spectrum peaks due to noise of the inverter are acquired in advance using the operation frequency and the frequencies of sideband waves with respect to the operation frequency. In abnormality diagnosis, abnormality determination is performed after spectrum peaks due to noise of the inverter are extracted from spectrum peaks extracted through FFT analysis of detected current of the electric motor.

The invention relates to the technical field of frequency converter correction, in particular to a frequency converter direct-current bus correction method and system based on dynamic voltage feedback, and the method specifically comprises the steps: dynamically controlling the activation mode of a voltage sensor array according to a fluctuation state; constructing a direct-current bus voltage deviation model containing dead-zone compensation voltage and a voltage ripple frequency spectrum model containing PWM carrier sideband harmonic waves; respectively obtaining a first adjustment parameter and a second adjustment parameter; and generating a zero-sequence voltage injection instruction according to the second adjustment parameter, and implementing direct-current bus correction control by dynamically adjusting a zero-sequence voltage injection ratio. The problem that in the prior art, the system stability and the device service life are seriously restricted due to the risks of correction mismatch, harmonic amplification and even capacitor overheating of the direct current bus voltage under the dynamic working condition is solved.

The invention discloses a UVM-based end-to-end random verification method for a complex bus interconnection bridge, and relates to the field of communication verification, and the method comprises the steps: building a verification environment based on a UVM, connecting a corresponding bus protocol master VIP containing a driver and a monitor to each slave interface of the bus interconnection bridge, connecting a corresponding bus protocol slave VIP containing a driver and a monitor to each master interface, and connecting the corresponding slave VIP containing a driver and a monitor to each slave interface of the bus interconnection bridge; a master VIP driver is used for sending read-write request excitation which carries the slave interface identity information and is carried by a sideband signal; a verification environment based on a UVM is established, excitation carrying slave identity information is sent through a VIP driver, data are packaged through a monitor and are distributed to a reference model and a scoreboard, meanwhile, the reference model is subjected to decoding routing according to a preset array, the scoreboard is matched with queue elements in sequence, and the functions of reserved queue grading processing, outsourcing characteristic directional coverage and timestamp calibration are further arranged. And multi-scene high-load simulation and error positioning are supported.

The invention provides a device and method for manipulating and regulating the bandwidth of a quantum compression state light field, and belongs to the technical field of optics. The problems that an experiment system is complex and high in cost due to the fact that existing bandwidth compression manipulation experiments depend on additional optical devices are solved. The device comprises an optical module, a data acquisition module and a data processing module, two BHDs are used for detecting noise variances of an upper sideband mode and a lower sideband mode based on compression carrier symmetry respectively, then an oscilloscope and a spectrum analyzer are used for detecting time domain signals and frequency domain signals of the BHDs respectively, and broadband compression state light field noise distribution is obtained. A collected time domain signal is post-processed by using an LPSD algorithm, and frequency-dependent differential phase shift is introduced into an upper sideband mode, so that bandwidth compression control of low-pass filtering, high-pass filtering and band-pass filtering effects can be realized.

The utility model discloses a distributed sound wave sensing system for multi-frequency pulse modulation, and relates to the technical field of distributed sound wave sensing. The system comprises a narrow linewidth laser, an optical fiber coupler, a polarization-maintaining optical isolator, an acousto-optic modulator, a polarization-maintaining delay optical fiber, an erbium-doped optical fiber amplifier, a polarization-maintaining dense wavelength division multiplexer, an optical fiber circulator, an optical fiber Bragg grating, a piezoelectric transducer, a polarization controller, a photoelectric balance detector, a data acquisition card, an arbitrary waveform generator and the like. According to the utility model, the multi-frequency delay ring is utilized to carry out multi-frequency modulation, the frequency number of light waves is increased along with the circulation times of the light waves in the delay ring, and under the condition that the utilization of a large-bandwidth electro-optical modulator is not increased, the flexible modulation of the frequency is realized by utilizing a low-bandwidth acousto-optical modulator without being influenced by carrier frequency and sidebands of each order; the low-bandwidth acousto-optic modulator is used for frequency modulation in the multi-frequency delay ring, and compared with an electro-optical modulation or multi-acousto-optic / multi-light source modulation scheme, the modulation cost is effectively saved.

The invention belongs to the technical field of distributed optical fiber sensing, and relates to a coding difference phase noise and distortion cooperative suppression optical frequency domain reflection method, which comprises the following steps: acquiring upper and lower frequency sweeping and beat frequency signals; separating the upper and lower sweep-frequency beat-frequency signals to obtain an upper sweep-frequency beat-frequency signal and a lower sweep-frequency beat-frequency signal; acquiring an upper sweep frequency beat frequency electric signal and a lower sweep frequency beat frequency electric signal; and the upper frequency-sweeping beat-frequency electric signal is delayed by one spatial resolution and then is mixed with the lower frequency-sweeping beat-frequency electric signal, or the lower frequency-sweeping beat-frequency electric signal is delayed by one spatial resolution and then is mixed with the upper frequency-sweeping beat-frequency electric signal, a frequency-mixing signal after phase frequency noise and frequency domain distortion suppression is obtained, and the Fourier frequency domain spectrum of the frequency-mixing signal is analyzed. The invention also provides a coding difference phase noise and distortion cooperative suppression optical frequency domain reflection system. The system comprises a positive and negative double-sideband sweep frequency light acquisition device, an optical splitter, a spectrum spreading device, an interference device, a beat frequency signal acquisition device and an electric delay unit. According to the invention, phase noise and frequency domain distortion noise can be effectively suppressed.

A geometry compression format is described. The compression format eliminates the need to store duplicate vertex information by storing unique vertices in each compressed data structure. Different triangles can refer to the same vertex using an index value, meaning that even if the same vertex is used multiple times in the compressed data structure, the entirety of the vertex information (e.g., positional information) does not need to be stored multiple times. An improvement includes representing further subdivision of the geometry in an efficient manner to represent highly detailed geometry. The subdivision can be specified by sideband information which can specify any of a variety of types of information.

The invention discloses a cable, a sideband signal processing method and device and a computer readable storage medium, and relates to the technical field of communication. The connector is connected with the cable body; wherein the connector comprises a plurality of first pins and a plurality of path switching circuits connected with the plurality of first pins; the plurality of first pins are used for connecting multi-side-band signals; the plurality of path switching circuits are used for being connected with a plurality of second pins of external equipment in a one-to-one correspondence manner; a plurality of second pins of the external equipment are used for connecting multi-side band signals; each path switching circuit comprises a plurality of paths of first circuits which are respectively connected with the plurality of first pins; each first circuit comprises a first field effect transistor, a second field effect transistor, a first resistor, a second resistor and a switch.

An OCT instrument comprising: an optical coupler which generates signal light and reference light from a swept narrowband light source; a detector which samples a time-varying interference signal based on the reference light and signal light returned from a sample; an adjustable optical frequency shifter which: generates a first sideband light by adjusting an optical frequency of the reference light, such that the detector unit samples a first time-varying interference signal resulting from an interference between the sideband light and the returned signal light; and maintains the optical frequency of the reference light such that the detector unit samples a second time-varying interference signal resulting from an interference between the reference light and the returned signal light. The OCT instrument generates a respective axial depth profile of the sample based on each of the sampled first time-varying interference signal and the sampled second time-varying interference signal.

The invention discloses an edge sealing and rolling cutting device for gypsum board production, which comprises a conveying frame for conveying gypsum boards, a tensioning tray, a gluing mechanism, a guide wheel set and a pressing mechanism are arranged on the conveying frame, an edge sealing belt is wound on the tensioning tray, and the edge sealing and rolling cutting device further comprises a guide strip mounted on the conveying frame, the guide strip guides the bottom end of the edge sealing belt to abut against the bottom end of the gypsum board firstly, the press-fit mechanism comprises a driving part and a press-fit part, and the driving part drives the press-fit part to push the edge sealing belt to adhere to the gypsum board from bottom to top along an oblique line; by arranging the guide strip, the bottom end of the edge sealing belt is firstly adhered to the bottom end of the gypsum board, then the pressing part is driven by the driving part to push the edge sealing belt to be adhered to the side wall of the gypsum board from bottom to top along an oblique line, and a glue solution moves upwards along the adhesion direction of the edge sealing belt under the action of shear force and overflows from the gypsum board and the edge of the upper end of the edge sealing belt; and the situation that redundant glue liquid overflows from the lower end of the gypsum board to the conveying frame, and the appearance quality of the gypsum board is affected is avoided.

The invention belongs to the technical field of distributed optical fiber sensing, and relates to a phase-frequency noise suppression optical frequency domain reflection measurement method and system without an auxiliary interferometer. The measurement method comprises the following steps: acquiring positive and negative double-sideband sweep-frequency light with the same sweep-frequency range and opposite sweep-frequency directions; dividing the positive and negative double-sideband sweep frequency light into double-sideband detection light and double-sideband local oscillation light according to a preset proportion; configuring a pseudo-random noise code, and modulating the pseudo-random noise code to the double-sideband probe light to obtain spread spectrum double-sideband probe light; the spread spectrum double-sideband detection light enters the sensing optical fiber and is reflected back to the backward Rayleigh scattering light, and the backward Rayleigh scattering light and the spread spectrum double-sideband local oscillation light interfere with each other to output up-down sweep frequency beat frequency signals; separating the upper and lower sweep-frequency beat-frequency signals to obtain an upper sweep-frequency beat-frequency signal and a lower sweep-frequency beat-frequency signal; and after the upper sweep frequency beat frequency signal and the lower sweep frequency beat frequency signal are respectively decoded, a beat frequency signal is separated through band-pass filtering, the beat frequency signal is subjected to frequency mixing processing to obtain a frequency mixing signal after phase frequency noise suppression, and the frequency spectrum of the frequency mixing signal is analyzed.

The invention provides an axial skewed pole motor eccentricity detection method based on asymmetric layered Hall, and the method comprises the following steps: respectively installing a first group of linear Hall sensors and a second group of linear Hall sensors on a first axial layer and a second axial layer of a stator notch of an axial skewed pole motor in an asymmetric manner; after analog-to-digital conversion is carried out on the voltage signals detected by the linear Hall sensor, a pair of orthogonal third harmonic sinusoidal signals is obtained through grouping signal superposition, and the eccentric direction is determined; and based on a complex factor filter and a synchronous reference system phase-locked loop, extracting amplitudes of a positive sequence signal, a negative sequence signal and a sideband signal from the third harmonic sinusoidal signal, and further calculating a static eccentricity rate and a dynamic eccentricity rate. According to the axial skewed pole motor eccentricity detection method, two groups of linear Hall sensors are mounted in a layered and asymmetric manner, so that the eccentricity detection sensitivity and precision are effectively improved, the eccentricity state change in the motor operation process can be quickly responded, and the dynamic and static eccentricity rates and the eccentricity direction are output.

A docking station includes a processor and a memory coupled to the processor. The docking station may be configured to establish a sideband connection between an information handling system and the docking station subsequent to detecting the information handling system docking at the docking station. The docking station may also execute a workload of the information handling system, subsequent to the establishment of the sideband connection. In addition, the docking station may transmit a notification to resume the workload via the sideband connection subsequent to detecting that the information handling system is undocked from the docking station while performing the executing of the workload.

The invention relates to the technical field of laser radars, in particular to a non-aliasing frequency-modulated continuous wave radar detection system and method, and the system comprises a light source, a beam splitter, a circulator, a 90-degree mixer, a signal conversion module and a signal processing unit. The signal processing unit is configured to construct a composite vector signal S based on the first electric signal I and the second electric signal Q, S = I + jQ, j is an imaginary part operator, obtain a double-sideband spectrum based on the composite vector signal S, determine the frequency of a signal peak in an upper frequency sweeping period and the frequency of a signal peak in a lower frequency sweeping period in the double-sideband spectrum, and determine the frequency of the signal peak in the upper frequency sweeping period and the frequency of the signal peak in the lower frequency sweeping period; and obtaining the distance and speed of the target to be measured based on the frequency of the signal peak in the upper frequency sweeping period and the frequency of the signal peak in the lower frequency sweeping period. According to the invention, the problem of signal aliasing during detection of the to-be-detected target can be solved at least.

The invention discloses a passive gasket type pressure sensor based on parametric negative resistance self-excitation and a monitoring method, and belongs to the technical field of bolt loosening state monitoring. The sensor is improved based on a standard metal flat washer, a piezoelectric sensing unit, a pilot frequency response passive network and a passive heat-induced drift suppression circuit are embedded, and an embedding area is filled with organic silica gel. The pilot frequency response passive network uses parametric reactance to modulate nuclear strength nonlinearity to generate active negative resistance, weak radio frequency energy self-excitation is achieved, and bolt axial load change is mapped into echo frequency sideband drift; the thermally induced drift suppression circuit eliminates temperature drift. According to monitoring, the environment temperature is determined through temperature echoes, a frequency-load curve is matched, and then the bolt loosening state is determined through bolt loosening state echoes. Passive, wireless, maintenance-free and high-precision monitoring is realized, and the problems of high starting threshold, near communication, poor integration and the like in the prior art are solved.

The invention discloses a carbon fiber prepreg laying layer defect detection method and system based on nonlinear guided waves, and the method comprises the steps: arranging excitation and receiving sensor arrays at the inner side and the outer side of a carbon fiber prepreg region, transmitting Hanning window modulation sine wave signals through the excitation sensor arrays, arranging an acoustic metamaterial layer on the surface of a detection region, and detecting the defects of the carbon fiber prepreg laying layer through the acoustic metamaterial layer. An excitation sensor array is divided into two groups to emit different phase signals, so that wave beams are focused at specified positions in a detection area and interact with each other, normalized time-frequency analysis is performed on reference signals and to-be-detected signals, second harmonic components and sideband frequency components are extracted, a relative nonlinear coefficient is calculated based on a signal difference value, and the relative nonlinear coefficient is calculated. And processing and receiving full matrix data of the sensor array by adopting a full focusing method, and reconstructing a nonlinear coefficient distribution image in the carbon fiber prepreg to carry out defect positioning and quantitative evaluation on the acoustic metamaterial layer. According to the invention, accurate and reliable detection and early warning of micro-defects in the carbon fiber prepreg laying process are realized.

A PAPR optimization method for digital FM radio transmission is disclosed. The method includes generating an Orthogonal Frequency-Division Multiplexed (OFDM) signal for transmission and applying an adaptive PAPR reduction algorithm to the generated signal. The method further includes determining a Modulation Error Ratio (MER) for one or more frequency sidebands and iteratively adjusting PAPR reduction parameters based on the measured MER values. The adjustment includes optimizing the number of PAPR reduction iterations for a highest-power primary digital sideband, optimizing QAM constellation constraint limits, and adjusting convergence bias weight settings for a lowest-power primary digital sideband and / or secondary digital sidebands to maintain target MER values. The method further includes updating PAPR reduction parameters in real-time until the measured MER values meet predefined target thresholds and executing instructions to coordinate the operation of an optimization servomechanism, ensuring dynamic PAPR optimization across multiple transmission modes.

The invention particularly relates to an excitation signal waveform intelligent optimization method for a high-power narrow-linewidth fiber laser, and the method comprises the steps: obtaining an excitation signal, carrying out the processing of a phase modulation waveform of the excitation signal, and extracting an input feature set needed by frequency spectrum prediction; constructing a frequency spectrum prediction model based on the decoupling echo state network, inputting the input features into the frequency spectrum prediction model based on the decoupling echo state network, realizing nonlinear mapping between the phase modulation waveform of the excitation signal and the frequency spectrum response thereof, and obtaining a prediction frequency spectrum; constructing a composite cost function including a mean square error, a spectrum sideband leakage penalty term and a spectrum smoothing term based on the difference between the predicted spectrum and the target spectrum; based on a composite cost function, an Adam optimization algorithm is adopted to iteratively correct a phase waveform in a frequency domain, intelligent waveform optimization of phase modulation is realized, and a threshold value of a stimulated Brillouin scattering effect is reduced. The intelligent optimization of the phase modulation waveform of the excitation signal can be realized.