65 results about "Frequency difference" patented technology

This invention belongs to the field of positioning algorithm technology and discloses a method for motion bistation time-frequency difference (SDP) positioning. The algorithm of this invention provides a complete process for motion bistation positioning without requiring manual selection of an initial solution. The SDP algorithm used can handle the problem of motion bistation SDP positioning. When noise is high, SDP gradually deviates from the CRLB bound. The accuracy of the corrected result can be guaranteed by using the Refine algorithm or maximum likelihood estimation based on Gauss-Newton. With low measurement error, the direct correction algorithm slightly deviates from the CRLB bound, mainly due to errors introduced by linearization.

The present disclosure relates to an oscillator and a control method. The oscillator includes a voltage-controlled oscillator circuit and a processing circuit. The voltage-controlled oscillator circuit generates an oscillation frequency according to a digital signal. When the digital signal is a first signal value, the oscillation frequency is a first oscillation frequency. The processing circuit determines a second signal value of the digital signal according to the first oscillation frequency and a target oscillation frequency, so as to adjust the oscillation frequency to a second oscillation frequency. The processing circuit further interpolates according to a first frequency difference between the target oscillation frequency and the first oscillation frequency and a second frequency difference between the second oscillation frequency and the first oscillation frequency to determine a target signal value of the digital signal, so as to adjust the oscillation frequency to the target oscillation frequency.

The application discloses a detection synchronization and demodulation design method based on a high-speed burst communication system, comprising the following steps: S1, performing fast acquisition on a burst synchronization sequence in a high-speed QPSK and OQPSK satellite communication system; S2, after the matching flag of the synchronization sequence in S1 is valid, performing M&M frequency offset estimation on current on-the-fly complex signal data and a preset synchronization sequence, generating a corresponding carrier compensation value by using the calculated frequency difference value, and outputting the frequency-compensated on-the-fly complex signal; S3, performing phase estimation on the frequency-compensated on-the-fly signal and the preset synchronization sequence, generating a corresponding phase compensation value by using the calculated phase difference value, and outputting the frequency-phase-compensated on-the-fly signal; and S4, after the frequency-phase compensation is completed, the on-the-fly complex signal is sent into a small-bandwidth synchronization tracking loop to generate a compensation value, a constellation diagram is output, and a symbol hard decision is performed on the loop output to output a synchronization code stream. The application meets the requirements of low bit error rate and missed detection and false detection rate, and provides good demodulation performance.

This application discloses a broadband sound absorption structure for an air conditioner compressor, comprising: a carrier; multiple sound-absorbing units arranged in a matrix on the carrier; each sound-absorbing unit having multiple sound-absorbing cavities spaced apart and sound-absorbing holes formed on the surface of each sound-absorbing cavity; multiple sound-absorbing holes of the same sound-absorbing unit being on the same horizontal line and the hole size gradually increasing from one side to the other; and the hole wall of each sound-absorbing hole extending towards the sound-absorbing cavity; through the matrix arrangement of sound-absorbing units and their hole size gradient design, a multi-band Helmholtz resonant cavity is formed, utilizing the resonant frequency difference corresponding to different hole sizes to cover broadband sound absorption requirements from low frequency (80Hz) to high frequency (8000Hz); at the same time, the regular matrix arrangement enhances the sound wave scattering effect, increasing the sound absorption bandwidth by about 60% compared to traditional structures.

The present application relates to the technical field of automatic control of hydropower station, disclose a kind of adaptive control method of hydropower station governor primary frequency modulation based on network source cooperation, including obtaining grid frequency rate of change, active power fluctuation and bottom physical data;According to physical data, calculate dynamic water flow inertia time, combine active power fluctuation and frequency rate of change to calculate grid equivalent inertia, reconstruct anti-reverse regulation threshold boundary;Calculate the real-time module length and phase angle of the trajectory vector of frequency difference and frequency rate of change;When satisfying the threshold boundary condition of frequency drop, generate feedforward differential negative compensation based on frequency rate of change;When determining that water flow establishes positive acceleration, generate dynamic clamping coefficient using vortex belt pressure fluctuation derivative, limit the recovery trajectory of main loop proportional gain;Finally, generate comprehensive guide vane opening degree instruction by fusing each control quantity and issue execution.The present application inhibits the water hammer reverse regulation effect in the initial stage of primary frequency modulation, reduces the pressure fluctuation risk in the later stage of regulation, and guarantees the stable operation of unit.

This invention relates to a method, system, medium, and device for determining the quality factor of intermediate-deep strata, comprising: acquiring source wavelet and receiver wavelet, and performing Fourier transforms on them respectively to obtain the corresponding amplitude spectra; calculating the probability density functions of the wavelet power spectrum before and after attenuation; calculating target parameters based on the probability density functions of the wavelet power spectrum before and after attenuation and the wavelet amplitude spectra before and after attenuation; calculating the centroid frequency difference of the power spectrum based on the probability density functions of the wavelet power spectrum before and after attenuation; and calculating the quality factor of the corresponding layer based on the target parameters and the centroid frequency difference of the power spectrum. This invention constructs a probability density function using the power spectra of the wavelet before and after attenuation, and uses this as a weight to perform a weighted integral on the logarithmic term of the amplitude spectral ratio to construct a new index with a structure similar to Jeffrey divergence, thereby suppressing spectral ratio vibrations caused by noise and achieving the goal of stably and accurately estimating the quality factor of intermediate-deep strata under different actual seismic data conditions.

The application relates to the technical field of optical measurement, in particular to a kind of anti-phase double sideband ultra-stable cavity locking wide tuning method.The method comprises the following steps: obtaining a target laser beam emitted by a target laser;after the target laser beam is input into a first modulator, a first intermediate laser beam is obtained;after the first intermediate laser beam is input into a second modulator, a second intermediate laser beam is obtained;after the second intermediate laser beam is input into a PDH optical path, a key laser beam is obtained;after the key laser beam is input into a target FP cavity, an actual frequency difference is obtained, and adjustment is carried out according to the actual frequency difference;it can be known that, compared with the prior art, by tuning the ultra-stable reference benchmark itself, and using sideband locking technology to let the target laser serve as a "driven device" to track the moving benchmark in real time, wide tuning in a large range can be achieved while maintaining and high stability, and the contradiction between stability and wide tuning is solved.

This application relates to the field of industrial automation testing technology and discloses an instrument anti-jitter reading method based on pressure pulsation characteristics synchronization. Through a synchronous triggering mechanism, continuous video streams of the pressure gauge and pipeline pressure fluctuation data are simultaneously acquired during the pressure holding phase. Frequency domain transformations are performed on the pointer displacement sequence and the pressure fluctuation sequence respectively to extract the dominant frequency of pointer oscillation and the dominant frequency of pressure pulsation, and the frequency difference is calculated. When the frequency difference is less than a preset threshold, it is determined to be a systematic jitter caused by pressure pulsation. The pressure fluctuation data is used as a reference to reconstruct the pointer displacement sequence to obtain the pressure reading value; otherwise, an abnormal jitter processing procedure is executed. This invention converts pressure pulsation interference into a reference signal, realizing the quantitative differentiation and differential processing of jitter sources. Without adding additional hardware, it provides a reliable anti-jitter reading scheme for automated pressure gauge verification, and also has online diagnostic capabilities for mechanical faults.

The application relates to the technical field of communication network measuring instruments, in particular to a MEMS device frequency drift self-compensation method and system. The method comprises the following steps: collecting monitoring parameters of the MEMS device; calculating a temperature disturbance coefficient through the correlation between temperature and frequency, the temperature change rate, the time offset amount of temperature and frequency and the actual frequency difference; calculating a coupling degree factor by constructing a correlation matrix according to the correlation between the remaining parameters and temperature; calculating a lag degree coefficient by combining the time offset amount of the remaining parameters and temperature, the temperature disturbance coefficient and the fluctuation of temperature; calculating a thermal lag compensation factor through the temperature disturbance coefficient and the lag degree coefficient; determining a dynamic compensation amount by using a proportional-integral controller based on the thermal lag compensation factor; and completing compensation by correcting the frequency. The application improves the accuracy and quality of the MEMS device frequency drift compensation.

The application provides a frequency stabilized laser device and a quantum communication system, and relates to the technical field of lasers.The frequency stabilized laser device comprises: a first distributed feedback laser for generating a first laser; a second distributed feedback laser for generating a second laser; an inner closed loop for cavity mode locking of the first distributed feedback laser and the second distributed feedback laser respectively, so as to suppress noise and cavity length disturbance and complete short-term stable regulation; and an outer closed loop for beat frequency processing of the first laser and the second laser according to a reference frequency, so that the frequencies of the first laser and the second laser remain stable, the long-term thermal drift of the first distributed feedback laser and the second distributed feedback laser is suppressed, and short-term and long-term stability is unified.The application can solve the technical problems that the existing laser cannot simultaneously realize short-term low noise and long-term low drift, the stable cavity effect is poor, and frequency difference monitoring is difficult, and realizes the unification of short-term stability and long-term stability of the laser signal.

The application discloses a local frequency spectrum phase demodulation method of a dual-frequency laser interference signal and belongs to the technical field of laser interference precision measurement and digital signal processing. The method first measures the inherent frequency difference of a dual-frequency laser and completes frequency shifting through a DDS module and a fcos mixing module; then, a local STFT module searches a local frequency band near a center frequency given by a frequency feedback module, a main spectrum line CEC judgment module determines target main spectrum line frequency points of a reference path and a measurement path respectively, a CORDIC calculation module extracts complex spectrum value arguments and obtains a phase difference, a GF phase smoothing module performs smoothing processing on the phase difference sequence, and a DF fixed phase shift compensation module implements compensation according to a frequency-fixed phase shift error model, so that displacement and speed are finally obtained. The method reduces the search calculation amount of the whole frequency band, improves the main spectrum line tracking stability and the position and speed demodulation precision under high dynamic conditions by constructing a local frequency spectrum phase demodulation chain driven by a frequency closed loop.

A device may include: a reference divider circuit for dividing a reference clock; a phase-frequency detector circuit for detecting a detected phase difference and a detected frequency difference based on the reference divider output and a feedback clock; a loop filter circuit for filtering the detector output; a voltage-controlled oscillator (VCO) control output pin coupled to the loop filter output; a VCO clock divider control output pin for selecting the divisor of an external clock divider circuit; a divider VCO clock input pin coupled to the output of the external clock divider circuit; a pulse width modulation (PWM) circuit having a PWM clock input coupled to the divider VCO clock input pin; a period register for storing a period value; a duty cycle register for storing a duty cycle value; and a PWM output based on the period value and the duty cycle value.

A transceiver circuit includes: a clock adjustment module (A), a frequency and phase detector (B), and a first phase-locked loop (C); a first input terminal of A is coupled to the input terminal of the transceiver circuit, a first output terminal of A is connected to the first input terminal of B, the output terminal of B is connected to the input terminal of C, and the output terminal of C is connected to the second input terminal of A and the second input terminal of B; B is used to determine the frequency difference between the current receiving clock signal of the transceiver circuit and the clock signal output by C at the previous moment; C is used to output a first clock signal according to the frequency difference; A is used to determine the phase difference between the clock signal of a first transceiver device and the current clock signal of the transceiver circuit; and adjust the first clock signal according to the phase difference to obtain a second clock signal, the second clock signal being synchronized with the clock signal of the first transceiver device; and update the receiving clock signal of the transceiver circuit to the second clock signal, the second clock signal being used to receive data from the first transceiver device.

The application relates to the technical field of digital phase-locked loops, and discloses a DPLL phase meter lock-loss frequency prediction system, which is characterized in that a frequency prediction module is additionally arranged in the DPLL phase meter, historical frequency data output by the DPLL module is analyzed through a polynomial fitting, a frequency difference value at adjacent time points is calculated as an accumulation factor, and a frequency prediction value at the next time point is obtained through updating; in combination with lock-loss detection and reset control, relocking is performed with the prediction value as an initial frequency when lock-loss occurs, and the capture is reset when the accumulated lock-loss reaches a preset threshold. The method adopts polynomial fitting and fixed-point data accumulation operation, realizes fast prediction through the accumulation of the difference value of historical frequency data, solves the problem of long secondary locking time in the phase-locked technology, effectively deals with lock-loss caused by noise disturbance, and significantly improves the measurement efficiency and stability of the phase meter.

The embodiment of the present disclosure provides a kind of interface characteristic determination method and test system, wherein the method comprises: applying excitation signal to the gate of voltage-driven device, test the substrate current of the device, to obtain the first response current;After applying preset voltage on the gate of the device for a preset duration, apply the excitation signal on the gate, test the substrate current of the device, to obtain the second response current;Determine the phase difference between the excitation signal and the first response current and the second response current respectively, to obtain the first phase difference and the second phase difference;Based on the first phase difference and the second phase difference, determine the characteristics of the interface to be measured in the device;Wherein, the frequency difference between the excitation signal and the characteristic frequency of the interface to be measured is within the first preset range.

The present application belongs to the field of micro-grid control strategy, and particularly relates to a micro-grid island detection and pre-synchronization control method and device. The micro-grid island detection method uses the island detection method of intermittent use under different conditions through the AFD detection method and the AFD PF detection method. When the frequency difference is large, a small disturbance current is applied. When the frequency difference is small, a larger disturbance current is added to improve the detection speed and avoid the influence of long-time injection of the interference current on the power quality. The pre-synchronization control method adds a compensation amount to the micro-grid voltage frequency or amplitude through the pre-synchronization method before the micro-grid is in the island state and starts to be connected to the grid, so that the micro-grid voltage frequency and amplitude can be consistent with the large grid. Therefore, the impact voltage and impact current caused by the merging of voltages in different states can be eliminated when the grid is connected, the influence on the power quality of the micro-grid can be avoided, and the grid connection efficiency and success rate can be improved.

The application discloses a ship radiated noise power spectrum measurement method based on frequency difference beam forming, comprising the following steps: obtaining a to-be-measured radiated noise signal received by a base array; constructing a difference frequency signal through the conjugate product of the to-be-measured radiated noise signal and a reference frequency signal; performing beam forming on the constructed difference frequency signal based on the difference frequency, and calculating the amplitude of the beam output signal of the difference frequency signal; correcting the amplitude of the beam output signal of the difference frequency signal by using the amplitude of the reference frequency signal to obtain the amplitude of the to-be-measured radiated noise signal, and calculating the power spectrum of the to-be-measured radiated noise signal. The application converts the signal outside the design frequency band of the base array to the inside of the design frequency band to perform beam forming, improves the array gain, better suppresses the environmental noise, improves the measurement performance of the base array on the radiated noise outside the design frequency band, greatly expands the frequency band width of the ship radiated noise measurement, and can realize the measurement of the radiated noise with a larger bandwidth by using a smaller aperture array.

Embodiments of this application provide a frequency difference adjuster (10C), a frequency difference adjustment method, a laser generation apparatus (100), and an electronic device (1000). A tunable comb filter (1C) is reused to filter a first optical signal and a second optical signal, to obtain a first filtered optical signal and a second filtered optical signal. Optical-to-electrical conversion is performed on the first filtered optical signal and the second filtered optical signal, to obtain a first filtered electrical signal and a second filtered electrical signal. A frequency of the first optical signal and a frequency of the second optical signal are obtained respectively based on the first filtered electrical signal and the second filtered electrical signal. Then, a first laser (A) is controlled to adjust the frequency of the output first optical signal, so that a frequency difference between the first optical signal and the second optical signal remains at a first frequency difference. In embodiments of this application, the tunable comb filter (1C) is used, and an adjusted frequency difference range is larger. In addition, in a scenario in which the tunable comb filter (1C) is reused, the frequency difference between the first optical signal and the second optical signal relative to the tunable comb filter (1C) remains stable, and there is no need to perform temperature calibration on a start frequency of the tunable comb filter (1C).

This invention discloses a method and apparatus for controlling different frequencies of a hemispherical resonant gyroscope. The method includes the following steps: changing the mode shape azimuth angle of the hemispherical resonant gyroscope; for each mode shape azimuth angle, acquiring the phase-locked frequency in real time; constructing a relationship model between the phase-locked frequency and the mode shape azimuth angle based on all mode shape azimuth angles and their corresponding phase-locked frequencies; solving the relationship model to obtain frequency division control parameters; calculating the Y phase-locked frequency based on the frequency division control parameters and the real-time acquired phase-locked frequency; calculating the Y electrode drive signal based on the calculated Y phase-locked frequency; and calculating the X electrode drive signal based on the real-time acquired phase-locked frequency, thereby achieving frequency division control of the drive signal during normal operation of the hemispherical resonant gyroscope. This invention can reduce the influence of frequency difference in the hemispherical resonant gyroscope and improve the angle sensitivity accuracy.

A system and method for testing coherent and frequency agility characteristics of a radar echo simulation device, the system comprising: a local oscillator signal generation module for generating a frequency agile local oscillator signal; a signal transmission module for generating a modulated transmit baseband signal; upconverting the modulated signal and transmitting to the device under test, outputting the phase and frequency of the transmit baseband signal to a phase difference calculation module and a frequency difference calculation module; a signal reception module for receiving a signal returned by the device under test, downconverting the received signal based on the frequency agile local oscillator signal to obtain a receive baseband signal, outputting the phase and frequency of the receive baseband signal to the phase difference calculation module and the frequency difference calculation module; a phase difference calculation module for calculating the phase difference between the receive baseband signal and the transmit baseband signal; a frequency difference calculation module for calculating the frequency difference between the receive baseband signal and the transmit baseband signal; a testing module for determining the coherent characteristic and the frequency agility characteristic of the device under test based on a plurality of sets of phase difference values and a plurality of sets of frequency difference values, respectively.

This invention provides a method and system for binaural differential frequency sleep conditioning, aiming to solve the technical problems of existing sleep regulation methods being weakly targeted, easily affected by environmental interference, and difficult to adapt to different types of sleep disorders in users. The method includes: acquiring user sleep target information; acquiring user physiological data collected in real time; determining the user's current sleep state information based on the user's physiological data; determining differential frequency audio information based on the user's current sleep state information and user sleep target information; generating a first audio signal and a second audio signal based on the differential frequency audio information, wherein the first audio signal and the second audio signal have a specific frequency difference; and sending the first audio signal and the second audio signal with the specific frequency difference to the user's left and right ears respectively, based on the first audio signal and the second audio signal. Through the output and dynamic adjustment of binaural differential frequency audio, sleep disorders are effectively improved, with strong safety and applicability.

Various aspects of this disclosure relate to: receiving (1702) a sensing configuration for performing sensing signal transmission and at least one sensing measurement; performing (1704) at least one sensing measurement based on a first sensing signal; transmitting (1706) a second sensing signal according to the sensing configuration, wherein the sensing configuration indicates a time difference between the reception of the first sensing signal and the transmission time or time reference of the second sensing signal, or a frequency difference between the reception of the first sensing signal and the transmission frequency or frequency reference of the second sensing signal, or both; and transmitting (1708) a measurement report based at least in part on the at least one sensing measurement.

The application discloses a modal separation type MEMS gyroscope frequency difference automatic tuning system. An excitation signal generation module converts drive detection current generated by a drive detection electrode into drive voltage and applies the drive voltage to the drive detection electrode, realizes extraction, storage and generation of a drive frequency, generates a sinusoidal excitation signal with the same frequency as the drive frequency, and makes the detection resonator vibrate forcibly. A frequency difference self-tuning module represents forced motion amplitude of the detection resonator through amplitude-frequency response of the excitation signal, generates a tuning voltage through automatic gain control after difference with an adjustable reference value, feeds back the tuning voltage to the moving mass electrode, and tunes the frequency difference through electrostatic negative stiffness effect. The stable tuning feedback voltage is stored in a tuning voltage generation module, a fixed tuning feedback voltage is generated by a time sequence control unit to act on the moving mass electrode, and the frequency difference self-tuning module is disconnected, so that the frequency difference automatic tuning is completed. The frequency difference dispersion of the MEMS gyroscope in batch production is overcome.

Embodiments of the present disclosure relate to MEMS mirror systems with slow light beam deflection. A light beam deflection system is configured to transmit a light beam with a time-varying output deflection angle. The system includes a first resonant structure configured to oscillate about a first rotational axis with a first resonant frequency, a second resonant structure configured to oscillate about a second rotational axis with a second resonant frequency, wherein the first rotational axis is parallel to the second rotational axis, and the first resonant frequency and the second resonant frequency are different and define a predetermined frequency difference, and a drive circuit configured to generate a first drive signal to drive the first resonant structure while additionally generating a second drive signal to drive the second resonant structure, such that the output deflection angle of the light beam oscillates according to a beat pattern of a beat wave, extreme values of the beat wave being modulated and defined by a periodic envelope.

The application provides a frequency difference estimation and phase compensation method and an asynchronous pairing measurement device-independent quantum key distribution system, an electronic device and a storage medium, and relates to the technical field of quantum key distribution. The method comprises the following steps: in the remaining response event, a set response event is determined, which is not used for Z basis vector response event and the light intensity combination is <signal state|signal state>; the set response event is repeatedly paired to generate a paired event set of [2 times signal state, 2 times signal state]; the paired event set is classified and counted according to the pairing step interval duration, the corresponding relationship between the pairing step interval duration and the phase error rate is established, and the fast Fourier transform is performed to extract the frequency difference information; and the frequency difference information is used for pulse pair completion of the X basis vector response event to complete the frequency difference estimation and the phase compensation. The application uses the protocol itself remaining signal state response event for repeated pairing, realizes high-precision frequency difference extraction and phase compensation, and improves the key coding performance and security under long-distance transmission.

A kind of phase detector, phase-locked loop, radio frequency circuit and terminal equipment, it relates to radio frequency technical field, to solve the problem of the deterioration of sweep frequency difference caused by phase detector overflow.Phase detector includes first TDC, second TDC and TDC selection unit, first TDC measures the time difference between reference signal and feedback signal to obtain first phase detection signal, second TDC measures the time difference between reference signal and feedback signal to obtain second phase detection signal, TDC selection unit selects first phase detection signal or second phase detection signal to obtain third phase detection signal, and the third phase detection signal is used to determine the frequency difference information of phase-locked loop.Through TDC selection unit, dynamic switching is made between two TDCs, when one TDC has overflow, the phase detection signal output by the other TDC is selected to generate frequency difference information, and the wrong frequency difference feedback of overflow TDC is discarded, the phase detection operation without overflow is realized, and the problem of the deterioration of sweep frequency difference caused by phase detector overflow is solved.

The application relates to the technical field of impeller equipment, and discloses an impeller natural frequency dynamic compensation method and system based on a shape coefficient. The mass ratio-frequency difference original curves of each half-open impeller sample are determined by combining finite element simulation and experimental testing; the original curves are fitted, and a shape coefficient is solved to make the original curves overlap, so that a frequency difference reference curve is obtained; a shape coefficient prediction model is trained based on the characteristic parameters of each half-open impeller sample and the corresponding shape coefficient; a target characteristic parameter of a target half-open impeller sample is input into the shape coefficient prediction model to obtain a predicted shape coefficient; the target mass ratio of the target half-open impeller sample is calculated, and the target test frequency of the target half-open impeller sample is determined by experimental testing; and the real natural frequency of the target half-open impeller sample is determined according to the target mass ratio, the target test frequency, the predicted shape coefficient and the frequency difference reference curve. The influence of the sensor mass on the test result of the impeller natural frequency is eliminated.

The application discloses a small frequency difference MEMS gyroscope detection phase shift suppression system, which is composed of a MEMS gyroscope, a driving loop, an angular velocity demodulation module and a parametric suppression loop. The application focuses on applying a parametric suppression signal to the detection resonator, electrostatically correcting the amplitude-phase frequency response, suppressing the detection phase shift under the small frequency difference mode, and improving the impact resistance. The detection resonator is embedded in the parametric suppression loop to generate stable amplitude self-excitation oscillation. A band-pass phase shifter is used to generate a parametric suppression signal twice the detection frequency from the detection amplitude multiplier. After the phase is shifted by 90 degrees to meet the parametric suppression phase condition, the parametric suppression signal acts on the parametric suppression electrode. Without losing the mechanical sensitivity of the MEMS gyroscope, the detection phase shift and the resonance peak amplitude at the detection natural frequency are suppressed, and the impact resistance is improved.

This invention discloses a method for detecting and suppressing local oscillator leakage signals, a terminal, and a storage medium. The detection includes: receiving a first radio frequency (RF) signal transmitted from a first AOU; adjusting the RF frequency of a second RF signal from a second AOU so that the frequency difference between the adjusted second RF signal and the first RF signal is greater than a first preset threshold; and detecting local oscillator leakage signals in the first RF signal when the frequency difference is greater than the first preset threshold. This allows the local end to accurately detect local oscillator leakage in the RF signal from the peer, avoiding misjudgments. The suppression includes: judging by the MSE index after demodulation at the local end, using whether the MSE index is affected by the DC component value superimposed on the baseband unit's orthogonal signal in the same direction on the peer device, to suppress local oscillator leakage at the peer. This not only saves a significant amount of manpower, resources, and time, but also allows for real-time monitoring. Using the final MSE index of point-to-point communication as the judgment standard, it effectively solves the problems of misjudgment and failure.