A method and system for improving circuit signal transmission quality

Abstract

The present invention discloses a method and system for improving the transmission quality of circuit signals, which belongs to the field of signal transmission technology, and specifically includes: S1, obtaining the real-time fluctuation characteristics of the original signal on the transmission conductor, the real-time fluctuation characteristics including the fluctuation intensity distribution set and the periodic unit duration; S2, generating a reverse compensation waveform that is mirror-symmetrical to the real-time fluctuation characteristics, and the reverse compensation waveform is injected into the transmission conductor during the signal transmission process; S3, setting a dynamic tuning node on the transmission path of the transmission conductor, and the dynamic tuning node generates an impedance adjustment instruction based on the distribution of the physical characteristics of the transmission conductor; S4, synchronously correcting the phase offset of the reverse compensation waveform according to the impedance adjustment instruction, so that the injection point position of the reverse compensation waveform coincides with the impedance peak area of ​​the transmission conductor; the present invention improves the transmission quality of circuit signals in complex environments through dynamic tuning and real-time compensation mechanisms.

Description

Technical Field

[0001] The present invention relates to the field of signal transmission technology, and in particular to a method and system for improving circuit signal transmission quality. Background Art

[0002] With the rapid development of modern electronic information technology, circuit signal transmission, as a critical link in electronic systems, has a direct impact on the performance of the entire electronic device. With the rapid development of technologies such as 5G communications, high-speed integrated circuits, and artificial intelligence, signal transmission is trending towards higher speed, higher frequency, and greater complexity, placing higher demands on the accuracy, stability, and reliability of signal transmission. Against this backdrop, effectively improving the transmission quality of circuit signals and resolving the various interference and distortion issues encountered during signal transmission have become critical and pressing challenges in the field of electronic technology.

[0003] Currently, various methods have been developed to improve the quality of signal transmission within circuits. For example, static impedance matching technology uses fixed matching elements within the circuit to match the characteristic impedance of the transmission line with the load impedance, thereby reducing signal reflections. Fixed compensation technology also provides pre-set compensation for distortion that may occur during signal transmission. Furthermore, traditional pre-distortion technology has also been applied to signal processing, performing pre-nonlinear processing on the input signal to offset nonlinear distortion within the transmission link. These technologies have, to a certain extent, improved the quality of signal transmission within circuits.

[0004] However, existing technologies have significant shortcomings when dealing with complex actual transmission environments. Static impedance matching technology cannot adjust in real time to the dynamic changes in the physical properties of the transmission conductor. When the temperature, material, and other factors of the conductor change, the matching effect will be significantly reduced. Fixed compensation technology cannot obtain the fluctuation characteristics of the signal in real time because the compensation parameters are pre-set, making it difficult to effectively compensate for the real-time changing signal distortion. Traditional pre-distortion technology generally does not consider the influence of factors such as the dielectric constant of the transmission conductor material, and lacks real-time detection and dynamic tuning mechanisms for the distribution of the physical properties of the transmission conductor. At the same time, there is no established closed-loop verification system to continuously optimize the compensation effect. As a result, signal reflection and distortion problems remain prominent during high-speed signal transmission. Summary of the Invention

[0005] The purpose of the present invention is to provide a method and system for improving the quality of circuit signal transmission, thereby solving the following technical problems:

[0006] Static impedance matching cannot respond to dynamic impedance changes in local areas of the transmission conductor, causing the matching effect to decay as the physical state changes.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A method for improving circuit signal transmission quality, comprising the following steps:

[0009] S1. Acquire real-time fluctuation characteristics of the original signal on the transmission conductor, wherein the real-time fluctuation characteristics include a fluctuation intensity distribution set and a periodic unit duration;

[0010] S2. generating a reverse compensation waveform that is mirror-symmetrical to the real-time fluctuation characteristic, wherein the reverse compensation waveform is injected into the transmission conductor during signal transmission;

[0011] S3. Setting a dynamic tuning node on a transmission path of a transmission conductor, wherein the dynamic tuning node generates an impedance adjustment instruction according to a distribution of physical characteristics of the transmission conductor;

[0012] S4. Synchronously correct the phase offset of the reverse compensation waveform according to the impedance adjustment instruction so that the injection point of the reverse compensation waveform coincides with the peak impedance region of the transmission conductor.

[0013] As a further solution of the present invention: in S1, the process of obtaining the real-time fluctuation characteristics of the original signal on the transmission conductor is:

[0014] Connect a waveform sampling unit to the transmitting end of the transmission conductor, set the sampling interval, which is an integer multiple of the natural resonant frequency of the transmission conductor, and extract the maximum and minimum values ​​of the signal amplitude within m consecutive sampling intervals, where m is the set value. Use a timestamp to mark the position of each extreme point within the vibration period of the transmission conductor.

[0015] Calculate the absolute value of the amplitude difference between adjacent extreme points, eliminate the slightly changed data that is less than 5% of the average amplitude, and form a fluctuation intensity distribution set;

[0016] The extreme point interval with a continuous and consistent amplitude change direction is identified, the amplitude change slope of the extreme point interval is fitted by the least squares method, and the duration of the extreme point interval is defined as a periodic unit.

[0017] As a further solution of the present invention: in S2, the process of generating a reverse compensation waveform that is mirror-symmetrical to the real-time fluctuation characteristic is as follows:

[0018] Read the fluctuation intensity distribution set in the real-time fluctuation characteristics, and invert the intensity values ​​of the fluctuation intensity distribution set in chronological order to generate a basic compensation sequence;

[0019] The periodic unit duration is converted into the frequency reference value of the reverse compensation waveform, and the conversion process retains the nonlinear characteristics of the amplitude change within the periodic unit;

[0020] Inserting a delay increment proportional to the dielectric constant of the transmission conductor material into the basic compensation sequence, wherein the insertion position of the delay increment is determined according to the geometric shape of the transmission conductor cross section;

[0021] The delay increment is converted into a phase rotation angle of a reverse compensation waveform, and the calculation of the phase rotation angle is based on a spherical trigonometric function model; the zero-crossing position of the basic compensation sequence is reconstructed according to the phase rotation angle to form a final reverse compensation waveform.

[0022] As a further solution of the present invention: the calculation process of the delay increment is:

[0023] Establish a correspondence database between the material type of the transmission conductor and the reference value of the dielectric constant. Determine the actual material type of the transmission conductor through surface reflection spectrum analysis of the transmission conductor. Query the correspondence database based on the actual material type to obtain the reference value of the dielectric constant. If the transmission conductor is a heterogeneous material, take the volume-weighted average of the dielectric constants of each component of the heterogeneous material.

[0024] The reference dielectric constant value is multiplied by the square root of the cross-sectional area of ​​the transmission conductor to obtain a reference delay coefficient. The cross-sectional area measurement includes compensation for the thickness of the oxide layer on the surface of the conductor. The delay increment is obtained by weighting the periodic unit duration with the reference delay coefficient as the weight.

[0025] As a further solution of the present invention: in S3, the process of generating the impedance adjustment instruction according to the distribution of the physical characteristics of the transmission conductor is:

[0026] Electromagnetic field induction coil groups are arranged at intervals on the surface of the transmission conductor, with the coil group spacing being less than one-fifth of the minimum wavelength of the signal in the transmission conductor, and the coil group axis forming a fixed angle with the tangent line of the transmission conductor surface;

[0027] Each electromagnetic field induction coil group is used to detect the electric field intensity gradient and magnetic field direction angle of the local area of ​​the transmission conductor, and calculate the absolute value of the rate of change of the electric field intensity gradient between adjacent electromagnetic field induction coil groups;

[0028] When the absolute value of the rate of change in any local area exceeds the critical value of the transmission conductor medium, it is marked as an impedance adjustment area and a corresponding impedance adjustment instruction is generated.

[0029] As a further solution of the present invention: the critical value of the transmission conductor medium is:

[0030] Keep the ambient temperature and humidity constant within the set range, and measure the reference distribution of the electric field strength of the entire section when the transmission conductor is unloaded;

[0031] Loading a standard test signal, wherein the standard test signal includes frequency components covering the bandwidth of the transmission conductor, and recording the real-time electric field strength of each electromagnetic field induction coil group after loading;

[0032] Eliminate the drift error of the electromagnetic field induction coil group itself and calculate the absolute value of the difference between the real-time electric field strength and the electric field strength reference distribution;

[0033] The maximum absolute value of the difference in five consecutive measurement cycles is taken as the dynamic threshold, and the dynamic threshold is multiplied by the inverse of the thickness of the insulation layer of the transmission conductor to obtain the dielectric critical value.

[0034] As a further solution of the present invention: in S4, the process of synchronously correcting the phase offset of the reverse compensation waveform according to the impedance adjustment instruction is as follows:

[0035] Obtaining the coordinates of the impedance adjustment region, and defining the distance between the coordinates and the transmitting end of the transmission conductor as the tuning distance; adjusting the generation timing of the reverse compensation waveform according to the total length of the transmission conductor, with the adjustment step size of the generation timing being the inverse of the signal propagation rate of the transmission conductor; and adding a compensation amount proportional to the tuning distance to the phase rotation angle when the tuning distance is less than one-third of the total length of the transmission conductor;

[0036] Detect the area where the magnetic field direction angle offset exceeds the angle judgment threshold and mark it as the magnetic field direction angle offset area. When the magnetic field direction angle offset area overlaps with the impedance adjustment area, verify the geometric relationship of the area overlap in the three-dimensional space coordinate system, superimpose the sine function value of the direction angle offset on the basis of the compensation amount, and use the superimposed compensation amount to recalculate the zero crossing position of the reverse compensation waveform.

[0037] As a further solution of the present invention: the calculation process of the tuning distance is:

[0038] A one-dimensional distance coding system is established with the transmitting end of the transmission conductor as the coordinate zero point, and the coding resolution matches the minimum spacing of the electromagnetic field induction coil group;

[0039] Bind the electromagnetic field induction coil group to a unique distance code according to the installation position. When the electromagnetic field induction coil group generates an impedance adjustment instruction, extract the distance code bound to the electromagnetic field induction coil group, mark it as the target distance code, and record the timestamp of the instruction generation time.

[0040] Calculate the difference between the target distance code and the distance code of the position where the most recent signal jump occurs. If the difference is less than one-quarter of the total code length of the transmission conductor, the target distance code is marked as the tuning distance. Otherwise, an invalid mark re-detection is triggered.

[0041] As a further solution of the present invention, a compensation mechanism is also included, specifically:

[0042] A waveform comparison unit is deployed at the receiving end of the transmission conductor to capture the key transition edges of the actual arriving signal. The key transition edges include the inflection points of the rising and falling edges of the signal.

[0043] The deviation between the critical transition edge and the standard timing position is extracted. When the deviation persists within a fixed distance interval, the distance code of the interval is fed back to the transmitter. The feedback information is transmitted through an independent control channel.

[0044] The angle determination threshold of the electromagnetic field induction coil group at the corresponding position is corrected according to the feedback distance code, the correction amount is proportional to the time integral value of the deviation amount, and the impedance adjustment instruction is regenerated based on the corrected angle determination threshold.

[0045] The present invention also includes a system for improving circuit signal transmission quality, which is used to implement the above-mentioned method for improving circuit signal transmission quality, comprising:

[0046] A signal fluctuation acquisition module is used to obtain the real-time fluctuation characteristics of the original signal on the transmission conductor, wherein the real-time fluctuation characteristics include a fluctuation intensity distribution set and a periodic unit duration;

[0047] a compensation waveform generating module, configured to generate a reverse compensation waveform that is mirror-symmetrical to the real-time fluctuation characteristic, wherein the reverse compensation waveform is injected into the transmission conductor during signal transmission;

[0048] An impedance adjustment generation module, configured to set a dynamic tuning node on a transmission path of a transmission conductor, wherein the dynamic tuning node generates an impedance adjustment instruction according to a distribution of physical characteristics of the transmission conductor;

[0049] The waveform offset correction module is used to synchronously correct the phase offset of the reverse compensation waveform according to the impedance adjustment instruction so that the injection point position of the reverse compensation waveform coincides with the peak area of ​​the transmission conductor impedance.

[0050] Beneficial effects of the present invention:

[0051] The present invention effectively addresses the problem of poor signal transmission quality in the prior art through dynamic tuning and real-time compensation mechanisms. Specifically, the present invention uses sampling intervals that are integer multiples of the conductor's natural resonant frequency to acquire signal fluctuation characteristics. Combining the material's dielectric constant and cross-sectional area, it generates a phase-rotated reverse compensation waveform, achieving precise cancellation of signal distortion. An electromagnetic field induction coil assembly detects the distribution of the conductor's physical properties, dynamically generates impedance adjustment instructions, and simultaneously corrects the phase offset, aligning the compensation waveform injection point with the impedance peak region, significantly reducing signal reflections. Regarding dynamic threshold generation, the dielectric critical value is determined by the difference between the no-load reference and loaded test signals, achieving an adaptive response to changes in the transmission environment. A distance encoding system is used to accurately calculate the tuning distance, combined with a signal transition position verification mechanism to ensure the effectiveness of phase compensation. A waveform comparison unit deployed at the receiving end detects key transition edge deviations and provides feedback to correct the magnetic field direction angle determination threshold, forming a closed-loop control system that continuously optimizes the compensation effect. In summary, the present invention achieves dynamic optimization of the entire signal transmission link, effectively overcoming the limitations of static matching and fixed compensation, and significantly improving the transmission quality of circuit signals in complex environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The present invention will be further described below with reference to the accompanying drawings.

[0053] Figure 1 It is a flow chart of a method for improving circuit signal transmission quality according to the present invention;

[0054] Figure 2 The present invention is a module schematic diagram of a system for improving circuit signal transmission quality. DETAILED DESCRIPTION

[0055] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0056] See also Figure 1 As shown, the present invention is a method for improving the quality of circuit signal transmission, comprising the following steps:

[0057] S1, connect the waveform sampling unit at the transmitting end of the transmission conductor, use the sampling interval of integer multiples of the conductor's natural resonant frequency, extract the sequence of signal amplitude extreme points within several consecutive sampling intervals, mark the time position of each extreme point, calculate the absolute value of the amplitude difference between adjacent extreme points, eliminate the small change data with small amplitude, form a fluctuation intensity distribution set, identify the extreme point interval with consistent amplitude change direction and define its duration as a periodic unit, and obtain real-time features including the fluctuation intensity distribution and the periodic unit duration.

[0058] S2 reads the set of fluctuation intensity distributions, inverts them in time order to generate a basic compensation sequence, converts the periodic unit duration into a frequency reference value while retaining the nonlinear characteristics of the amplitude change, inserts a delay increment that is proportional to the dielectric constant of the conductor material and determined by the cross-sectional geometry, converts the delay increment into a phase rotation angle based on the spherical trigonometric function model, reconstructs the zero-crossing position to generate a reverse compensation waveform, and injects it into the conductor.

[0059] S3, arrange electromagnetic field induction coil groups on the surface of the conductor with a spacing less than one-fifth of the minimum wavelength of the signal and a fixed angle between the axis and the surface tangent, detect the local electric field intensity gradient and the magnetic field direction angle, calculate the absolute value of the electric field intensity gradient change rate between adjacent coil groups, and mark it as an impedance adjustment area when it exceeds the critical value of the medium and generate instructions.

[0060] S4, obtain the coordinates of the impedance adjustment area as the tuning distance, adjust the compensation waveform generation timing according to the total length of the conductor, increase the phase compensation amount proportional to the distance when the tuning distance is less than one-third of the total length, detect the area where the magnetic field direction angle offset exceeds the threshold, superimpose the sine value of the direction angle offset when it overlaps with the impedance adjustment area, and recalculate the zero-crossing point position so that the injection point coincides with the impedance peak area.

[0061] In a preferred embodiment of the present invention, in S1, the process of obtaining the real-time fluctuation characteristics of the original signal on the transmission conductor is:

[0062] First, a high-precision waveform sampling unit is connected to the transmitting end of the transmission conductor. The sampling interval of this unit is precisely set to an integer multiple of the natural resonant frequency of the transmission conductor. For example, if the natural resonant frequency of the transmission conductor is 100MHz, the sampling interval can be set to an integer multiple of 10ns, such as 10ns or 5ns, to ensure that the sampling process can fully capture the signal fluctuation characteristics of the conductor in the resonant state. Next, the sequence of maximum and minimum values ​​of the signal amplitude within m sampling intervals is extracted from the continuous sampling data. m is a value pre-set based on the signal characteristics and the physical parameters of the transmission conductor, usually 1024 or 2048, to ensure that the extracted extreme point sequence can fully reflect the changes in the signal over multiple fluctuation cycles. The specific position of each extreme point within the transmission conductor vibration cycle is precisely marked using a timestamp. For example, the time coordinate of each extreme point is recorded in nanoseconds to facilitate subsequent analysis of the time correlation of the signal fluctuations.

[0063] After obtaining the extreme point sequence, the absolute value of the amplitude difference between adjacent extreme points is calculated. These differences are then compared with the average amplitude value to eliminate irrelevant data. For example, if the average amplitude value is 100mV, data with a difference of less than 5mV is eliminated. This eliminates interference from environmental noise during signal transmission and forms an accurate distribution of fluctuation intensity.

[0064] Finally, an algorithm identifies intervals of extreme points with consistent amplitude changes, such as an interval where five consecutive extreme points show an increasing or decreasing amplitude trend. The least squares method is then used to fit the slope of the amplitude change to the extreme points within this interval. For example, a fit is performed for 10 consecutive extreme points to reduce the impact of random errors. After the slope is fitted, the duration of the extreme point interval is defined as a periodic unit. For example, if an extreme point interval lasts from 100ns to 250ns, the periodic unit duration is 150ns. This parameter provides a critical time dimension reference for the subsequent generation of the reverse compensation waveform.

[0065] In another preferred embodiment of the present invention, in S2, the process of generating a reverse compensation waveform that is mirror-symmetrical to the real-time fluctuation characteristic is as follows:

[0066] First, read the fluctuation intensity distribution set obtained in step S1. This set contains the amplitude fluctuation characteristic data of the signal on the transmission conductor. The intensity values ​​in the set are inverted one by one in chronological order to generate a basic compensation sequence. For example, if the amplitude value recorded in the fluctuation intensity distribution set at a certain moment is +50mV, the value at the corresponding moment in the basic compensation sequence is converted to -50mV, thereby forming a basic waveform framework that is mirror-symmetrical with the original signal fluctuation characteristics.

[0067] Next, the periodic unit duration is converted to the frequency reference value of the inverse compensation waveform. This conversion process is not a simple numerical conversion; it requires preserving the nonlinear characteristics of the amplitude variation within the periodic unit. For example, if the periodic unit duration is 200ns, the corresponding frequency reference value is 5MHz. However, during the conversion process, it is necessary to ensure that the waveform amplitude variation trend at this 5MHz frequency is completely consistent with the nonlinear amplitude variation within the original periodic unit, thereby ensuring that the compensation waveform accurately corresponds to the distortion characteristics of the original signal.

[0068] After generating a basic compensation sequence, delay increments proportional to the dielectric constant of the transmission conductor material are inserted into the sequence. The insertion position of the delay increments is determined by the cross-sectional geometry of the transmission conductor. For example, for a transmission conductor with a circular cross-section, the delay increments may be evenly inserted at multiple time points in the basic compensation sequence. For a conductor with a rectangular cross-section, different delay increments may be inserted at different time points in the sequence based on the aspect ratio of the conductor to accommodate the impact of the conductor's cross-sectional geometry on signal transmission delay.

[0069] The delay increment is then converted into the phase rotation angle of the reverse compensation waveform. This conversion process is calculated based on a spherical trigonometric function model. For example, if the delay increment is 10ns, combined with parameters such as signal transmission speed, the spatial phase relationship calculation based on the spherical trigonometric function model can convert this delay increment into a specific phase rotation angle, such as 15 degrees, thereby determining the phase offset of the compensation waveform relative to the original signal. Finally, based on the calculated phase rotation angle, the zero-crossing position of the basic compensation sequence is reconstructed to form the final reverse compensation waveform. This waveform can produce an interference cancellation effect with the distorted portion of the original signal after being injected into the transmission conductor.

[0070] In a preferred embodiment of the present invention, the calculation process of the delay increment is as follows:

[0071] First, a database is established that correlates transmission conductor material types with reference dielectric constant values. This database includes dielectric constant data for common transmission conductor materials, such as copper (approximately 1.00059), aluminum (approximately 1.00026), and silver (approximately 1.00019). Surface reflectance spectroscopy analysis of transmission conductors can be used to determine the actual material type of the transmission conductor. Reflectance spectroscopy involves emitting a beam of light of a specific wavelength onto the conductor surface, receiving the reflected light, and analyzing its spectral characteristics. This spectral signature is then compared with a standard spectrum in a database to accurately identify the conductor material.

[0072] After determining the actual material type, query the corresponding database to obtain the reference dielectric constant value. If the transmission conductor is a heterogeneous material, such as a composite of copper and aluminum, the volume-weighted average of the dielectric constants of each component of the heterogeneous material is required. For example, if the volume fraction of copper in a heterogeneous conductor is 60% with a dielectric constant of 1.00059, and the volume fraction of aluminum is 40% with a dielectric constant of 1.00026, the reference dielectric constant value is 1.00059 × 60% + 1.00026 × 40% = 1.00045.

[0073] Next, calculate the baseline delay factor. Multiply the dielectric constant reference value by the square root of the transmission conductor's cross-sectional area to obtain the baseline delay factor. It's important to note that cross-sectional area measurements include compensation for the thickness of the conductor's surface oxide layer. For example, if a copper conductor with a nominal diameter of 1 mm has a surface oxide layer thickness of 10 μm, the actual cross-sectional area calculation requires correcting the diameter to 1.02 mm before calculating the cross-sectional area. Assuming this corrected cross-sectional area is 0.817 mm², the square root is approximately 0.904. Multiplying this by the reference dielectric constant of copper, 1.00059, yields a baseline delay factor of approximately 0.905.

[0074] Finally, the delay increment is calculated by weighting the periodic unit duration using the baseline delay coefficient. For example, if the periodic unit duration is 200ns and the baseline delay coefficient is 0.905, the delay increment is 200ns × 0.905 = 181ns. This delay increment accurately reflects the impact of the transmission conductor material and geometry on signal transmission delay, providing an accurate basis for phase adjustment of the reverse compensation waveform, ensuring that the compensation waveform accurately superimposes and offsets the distorted portion of the original signal.

[0075] In another preferred embodiment of the present invention, in S3, the process of generating the impedance adjustment instruction according to the physical property distribution of the transmission conductor is:

[0076] First, electromagnetic field induction coil groups are arranged at intervals on the surface of the transmission conductor. The arrangement of the coil groups must meet strict spatial parameter requirements: the spacing is less than one-fifth of the minimum wavelength of the signal in the transmission conductor to ensure that the spatial resolution of the detection can capture the local impedance change characteristics. For example, if the minimum wavelength of the transmission signal is 50 cm, the coil group spacing is set to less than 10 cm; the coil group axis and the tangent of the transmission conductor surface form a fixed angle, which is usually set to 60 degrees to balance the detection sensitivity of the electric field and magnetic field. This arrangement can effectively cover the surface electromagnetic field distribution of the transmission conductor and provide comprehensive data support for subsequent physical property analysis.

[0077] Each electromagnetic field induction coil group detects the electric field intensity gradient and magnetic field direction angle in a local area of ​​the transmission conductor in real time. The electric field intensity gradient reflects the rate of change of the electric field distribution during signal transmission, while the magnetic field direction angle reflects the spatial phase characteristics of the electromagnetic field. The system processes the electric field intensity gradient data detected by adjacent electromagnetic field induction coil groups and calculates the absolute value of the rate of change of the electric field intensity gradient between adjacent coil groups. For example, if the electric field intensity gradients detected by adjacent coil groups are 20V / m and 25V / m, respectively, and the spacing is 8 cm, the absolute value of the rate of change is (25-20) / 0.08 = 62.5V / m².

[0078] When the absolute value of the electric field intensity gradient change rate in any local area exceeds the critical value of the transmission conductor medium, the system marks the area as an impedance adjustment area and generates a corresponding impedance adjustment instruction. This instruction is used to drive the subsequent impedance adjustment device to dynamically adjust the impedance of the abnormal area to reduce signal reflection and distortion.

[0079] In a preferred embodiment of the present invention, the critical value of the transmission conductor medium is:

[0080] First, maintain the ambient temperature and humidity within a set range—typically, the temperature is controlled at 25°C ± 1°C and the humidity is controlled at 50% ± 5%—to eliminate environmental interference with the electric field strength measurement. With the transmission conductor unloaded, high-precision electric field measurement equipment is used to scan the electric field strength along the entire length of the transmission conductor to obtain a baseline electric field strength distribution. For example, for a one-meter-long transmission conductor, the electric field strength value at each point is recorded at a sampling interval of 1 cm to form a baseline distribution curve.

[0081] Next, a standard test signal is applied to the transmission conductor. This signal contains frequency components covering the transmission conductor's bandwidth, such as a broadband signal from 1 MHz to 100 MHz, to simulate the multi-frequency signal scenario encountered in actual transmission. After application, each electromagnetic field induction coil group records the corresponding electric field strength in real time, forming a real-time electric field strength distribution.

[0082] To ensure data accuracy, the drift error of the electromagnetic field induction coil assembly itself needs to be eliminated. This is typically achieved through a combination of periodic calibration and real-time compensation. For example, by comparing the measured values ​​of a known standard electric field source with the coil assembly output, the drift coefficient is calculated and the real-time data is corrected. After error correction is completed, the absolute difference between the real-time electric field strength of each coil assembly and the reference electric field strength distribution is calculated. For example, if the reference electric field strength of a coil assembly is 15 V / m and the real-time measured value is 17.5 V / m, the absolute difference is 2.5 V / m.

[0083] Take the maximum absolute value of the difference in five consecutive measurement cycles as the dynamic threshold. For example, if the maximum difference in the five cycles is 2.5V / m, 3.2V / m, 2.8V / m, 3.1V / m, and 2.9V / m, the dynamic threshold is 3.2V / m. Finally, multiply the dynamic threshold by the inverse of the thickness of the transmission conductor insulation layer to obtain the dielectric critical value. Assuming the thickness of the transmission conductor insulation layer is 0.1 mm, its inverse is 10 mm. -1 , then the critical value of the dielectric is 3.2V / m×10mm -1 =32V·mm / m².

[0084] This method of dynamically determining dielectric critical values ​​adapts to the material properties of the transmission conductor and environmental changes, offering greater accuracy and adaptability than fixed thresholds. Through real-time monitoring and dynamic threshold analysis, the system can accurately identify areas of impedance anomalies, providing a scientific basis for generating effective impedance adjustment instructions and thus dynamically optimizing the transmission conductor's impedance.

[0085] In another preferred embodiment of the present invention, in S4, the process of synchronously correcting the phase offset of the reverse compensation waveform according to the impedance adjustment instruction is as follows:

[0086] Obtain the coordinates of the impedance adjustment region and define the distance between the coordinates and the transmitting end of the transmission conductor as the tuning distance. For example, if the impedance adjustment region is located 20 cm from the transmitting end, the tuning distance is 20 cm. Adjust the timing of generating the reverse compensation waveform according to the total length of the transmission conductor, and the adjustment step size is the inverse of the signal propagation velocity of the transmission conductor. Assume that the signal propagation velocity in the conductor is 2×10 8 m / s, and the adjustment step is 5 nanoseconds, that is, every 5 nanoseconds is used as an adjustment unit to ensure that the generation timing of the compensation waveform is accurately synchronized with the signal transmission progress.

[0087] When the tuning distance is less than one-third of the total length of the transmission conductor, a compensation amount proportional to the tuning distance is added to the phase rotation angle. For example, if the total length of the transmission conductor is 60 cm and the tuning distance is 20 cm, which is exactly one-third of the total length, and the phase rotation angle is 30 degrees, the compensation amount is proportionally increased to adjust the total phase rotation angle to 30 degrees plus the compensation value corresponding to 20 cm. This ensures that the phase of the compensated waveform matches the location of the impedance anomaly area.

[0088] At the same time, areas where the magnetic field angular offset exceeds the angle determination threshold are detected in real time and marked as magnetic field angular offset areas. When the magnetic field angular offset area overlaps with the impedance adjustment area, the geometric relationship of the overlapping areas is verified in the three-dimensional spatial coordinate system. For example, the spatial range and shape of the overlapping area are determined by the X, Y, and Z axis coordinates. The sine function value of the angular offset is superimposed on the original compensation amount. For example, if the angular offset is 30 degrees and its sine function value is 0.5, then the corresponding value is increased by 0.5 times the compensation amount. Finally, the superimposed compensation amount is used to recalculate the zero-crossing position of the reverse compensation waveform so that the phase of the compensation waveform can accurately adapt to the electromagnetic distribution characteristics of the impedance peak area.

[0089] In a preferred embodiment of the present invention, the tuning distance is calculated as follows:

[0090] A one-dimensional distance coding system is established with the transmitting end of the transmission conductor as the coordinate zero point. The coding resolution matches the minimum spacing of the electromagnetic field induction coil group. For example, if the minimum spacing of the electromagnetic field induction coil group is 5 cm, the coding resolution is set to 5 cm to ensure that the installation location of each coil group can be uniquely coded and identified.

[0091] Next, unique distance codes are assigned to each electromagnetic field induction coil group based on their installation location. When an electromagnetic field induction coil group generates an impedance adjustment command, the associated distance code is immediately extracted and marked as the target distance code. The timestamp of the command generation is also recorded with nanosecond accuracy to facilitate subsequent time-correlation analysis. For example, if a coil group is installed 35 centimeters from the transmitter, its associated distance code is "35cm," and the timestamp of the command generation is 12:30:45.123456789 seconds.

[0092] Next, the difference between the target distance code and the distance code at the location of the most recent signal transition is calculated. The signal transition location typically refers to the critical inflection point on the rising or falling edge of the signal, captured in real time by the waveform detection algorithm. For example, if the most recent signal transition occurred 30 cm from the transmitter, the target distance code is 35 cm, and the difference is 5 cm. If this difference is less than one-quarter of the total coded length of the transmission conductor (assuming the total coded length of the transmission conductor is 100 cm, one-quarter is 25 cm, and 5 cm is less than 25 cm), the target distance code of 35 cm is marked as a valid tuning distance. Otherwise, the signal is marked invalid, and detection is repeated until a matching tuning distance is found.

[0093] This tuning distance calculation method, through the combination of a coding system and timestamps, enables precise positioning and verification of the impedance adjustment area, ensuring the effectiveness of subsequent phase compensation. Furthermore, through a differential verification mechanism based on signal transition positions, false positioning caused by electromagnetic interference or detection errors is effectively eliminated, improving the system's reliability and anti-interference capabilities.

[0094] In another preferred embodiment of the present invention, a compensation mechanism is further included, specifically:

[0095] A high-precision waveform comparison unit is deployed at the receiving end of the transmission conductor. This unit captures the key transition edges of the actual arriving signal in real time at a sampling frequency of 1 GHz. The key transition edges include the inflection point where the signal's rising edge amplitude changes from 10% to 90% and the inflection point where the signal's falling edge amplitude changes from 90% to 10%. These inflection points are key feature points that reflect signal timing deviations.

[0096] The waveform comparison unit compares the captured key transition edge with the standard timing position and extracts the deviation between the two. When the deviation persists within a fixed distance interval for 10 consecutive signal cycles, the system determines that there is continuous signal transmission distortion in that area. For example, if the deviation persists within a range of 40-50 cm from the transmitter, the waveform comparison unit feeds back the distance code of that range, such as "40-50 cm," to the transmitter via an independent low-frequency control channel. This independent channel uses a 100 kHz carrier frequency to avoid interference with the main signal transmission frequency band.

[0097] After receiving the feedback distance code, the transmitter corrects the angle determination threshold of the electromagnetic field induction coil group at the corresponding position. The correction amount is calculated based on the time integral value of the deviation. For example, if the deviation accumulates continuously within 1 microsecond and reaches 50 (ns) 2 If the integral value of the angle judgment threshold is 0.000, the angle judgment threshold is adjusted by 5 degrees. After the threshold is corrected, the impedance adjustment instruction is regenerated based on the new angle judgment threshold, driving the electromagnetic field induction coil group to perform a secondary adjustment on the impedance anomaly in the area, forming a closed-loop control cycle of detection, feedback, correction, and adjustment to ensure the continuous optimization of signal transmission quality.

[0098] See also Figure 2 As shown, the present invention also includes a system for improving circuit signal transmission quality, which is used to implement the above-mentioned method for improving circuit signal transmission quality, including:

[0099] A signal fluctuation acquisition module is used to obtain the real-time fluctuation characteristics of the original signal on the transmission conductor, wherein the real-time fluctuation characteristics include a fluctuation intensity distribution set and a periodic unit duration;

[0100] a compensation waveform generating module, configured to generate a reverse compensation waveform that is mirror-symmetrical to the real-time fluctuation characteristic, wherein the reverse compensation waveform is injected into the transmission conductor during signal transmission;

[0101] An impedance adjustment generation module, configured to set a dynamic tuning node on a transmission path of a transmission conductor, wherein the dynamic tuning node generates an impedance adjustment instruction according to a distribution of physical characteristics of the transmission conductor;

[0102] The waveform offset correction module is used to synchronously correct the phase offset of the reverse compensation waveform according to the impedance adjustment instruction so that the injection point position of the reverse compensation waveform coincides with the peak area of ​​the transmission conductor impedance.

[0103] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A method for improving the quality of circuit signal transmission, characterized in that: The following steps are involved: S1. Acquire real-time fluctuation characteristics of the original signal on the transmission conductor, wherein the real-time fluctuation characteristics include a fluctuation intensity distribution set and a periodic unit duration; S2. generating a reverse compensation waveform that is mirror-symmetrical to the real-time fluctuation characteristic, wherein the reverse compensation waveform is injected into the transmission conductor during signal transmission; S3. Setting a dynamic tuning node on a transmission path of a transmission conductor, wherein the dynamic tuning node generates an impedance adjustment instruction according to a distribution of physical characteristics of the transmission conductor; S4. Synchronously correcting the phase offset of the reverse compensation waveform according to the impedance adjustment instruction so that the injection point of the reverse compensation waveform coincides with the peak impedance region of the transmission conductor; In S2, the process of generating a reverse compensation waveform that is mirror-symmetrical to the real-time fluctuation characteristic is as follows: Read the fluctuation intensity distribution set in the real-time fluctuation characteristics, and invert the intensity values ​​of the fluctuation intensity distribution set in chronological order to generate a basic compensation sequence; The periodic unit duration is converted into the frequency reference value of the reverse compensation waveform, and the conversion process retains the nonlinear characteristics of the amplitude change within the periodic unit; Inserting a delay increment proportional to the dielectric constant of the transmission conductor material into the basic compensation sequence, wherein the insertion position of the delay increment is determined according to the geometric shape of the transmission conductor cross section; Converting the delay increment into a phase rotation angle of a reverse compensation waveform, wherein the calculation of the phase rotation angle is based on a spherical trigonometric function model; reconstructing the zero-crossing position of the basic compensation sequence according to the phase rotation angle to form a final reverse compensation waveform; The calculation process of the delay increment is: Establish a correspondence database between the material type of the transmission conductor and the reference value of the dielectric constant. Determine the actual material type of the transmission conductor through surface reflection spectrum analysis of the transmission conductor. Query the correspondence database based on the actual material type to obtain the reference value of the dielectric constant. If the transmission conductor is a heterogeneous material, take the volume-weighted average of the dielectric constants of each component of the heterogeneous material. The reference dielectric constant value is multiplied by the square root of the cross-sectional area of ​​the transmission conductor to obtain a reference delay coefficient. The cross-sectional area measurement includes compensation for the thickness of the oxide layer on the surface of the conductor. The delay increment is obtained by weighting the periodic unit duration with the reference delay coefficient as the weight.

2. A method for improving circuit signal transmission quality according to claim 1, characterized in that: In S1, the process of obtaining the real-time fluctuation characteristics of the original signal on the transmission conductor is as follows: Connect a waveform sampling unit to the transmitting end of the transmission conductor, set the sampling interval, which is an integer multiple of the natural resonant frequency of the transmission conductor, and extract the maximum and minimum values ​​of the signal amplitude within m consecutive sampling intervals, where m is the set value. Use a timestamp to mark the position of each extreme point within the vibration period of the transmission conductor. Calculate the absolute value of the amplitude difference between adjacent extreme points, eliminate the slightly changed data that is less than 5% of the average amplitude, and form a fluctuation intensity distribution set; The extreme point interval with a continuous and consistent amplitude change direction is identified, the amplitude change slope of the extreme point interval is fitted by the least squares method, and the duration of the extreme point interval is defined as a periodic unit.

3. The method for improving circuit signal transmission quality according to claim 1, characterized in that: In S3, the process of generating the impedance adjustment instruction according to the physical characteristic distribution of the transmission conductor is as follows: Electromagnetic field induction coil groups are arranged at intervals on the surface of the transmission conductor, with the coil group spacing being less than one-fifth of the minimum wavelength of the signal in the transmission conductor, and the coil group axis forming a fixed angle with the tangent line of the transmission conductor surface; Each electromagnetic field induction coil group is used to detect the electric field intensity gradient and magnetic field direction angle of the local area of ​​the transmission conductor, and calculate the absolute value of the rate of change of the electric field intensity gradient between adjacent electromagnetic field induction coil groups; When the absolute value of the rate of change in any local area exceeds the critical value of the transmission conductor medium, it is marked as an impedance adjustment area and a corresponding impedance adjustment instruction is generated.

4. The method for improving circuit signal transmission quality according to claim 3, characterized in that: The critical value of the transmission conductor medium is: Keep the ambient temperature and humidity constant within the set range, and measure the reference distribution of the electric field strength of the entire section when the transmission conductor is unloaded; Loading a standard test signal, wherein the standard test signal includes frequency components covering the bandwidth of the transmission conductor, and recording the real-time electric field strength of each electromagnetic field induction coil group after loading; Eliminate the drift error of the electromagnetic field induction coil group itself and calculate the absolute value of the difference between the real-time electric field strength and the electric field strength reference distribution; The maximum absolute value of the difference in five consecutive measurement cycles is taken as the dynamic threshold, and the dynamic threshold is multiplied by the inverse of the thickness of the insulation layer of the transmission conductor to obtain the dielectric critical value.

5. A method for improving circuit signal transmission quality according to claim 1 or 3, characterized in that: In S4, the process of synchronously correcting the phase offset of the reverse compensation waveform according to the impedance adjustment instruction is as follows: Obtaining the coordinates of the impedance adjustment region, and defining the distance between the coordinates and the transmitting end of the transmission conductor as the tuning distance; adjusting the generation timing of the reverse compensation waveform according to the total length of the transmission conductor, with the adjustment step size of the generation timing being the inverse of the signal propagation rate of the transmission conductor; and adding a compensation amount proportional to the tuning distance to the phase rotation angle when the tuning distance is less than one-third of the total length of the transmission conductor; Detect the area where the magnetic field direction angle offset exceeds the angle judgment threshold and mark it as the magnetic field direction angle offset area. When the magnetic field direction angle offset area overlaps with the impedance adjustment area, verify the geometric relationship of the area overlap in the three-dimensional space coordinate system, superimpose the sine function value of the direction angle offset on the basis of the compensation amount, and use the superimposed compensation amount to recalculate the zero crossing position of the reverse compensation waveform.

6. The method for improving circuit signal transmission quality according to claim 5, characterized in that: The calculation process of the tuning distance is: A one-dimensional distance coding system is established with the transmitting end of the transmission conductor as the coordinate zero point, and the coding resolution matches the minimum spacing of the electromagnetic field induction coil group; Bind the electromagnetic field induction coil group to a unique distance code according to the installation position. When the electromagnetic field induction coil group generates an impedance adjustment instruction, extract the distance code bound to the electromagnetic field induction coil group, mark it as the target distance code, and record the timestamp of the instruction generation time. Calculate the difference between the target distance code and the distance code of the position where the most recent signal jump occurs. If the difference is less than one-quarter of the total code length of the transmission conductor, the target distance code is marked as the tuning distance. Otherwise, an invalid mark re-detection is triggered.

7. The method for improving circuit signal transmission quality according to claim 1, characterized in that: It also includes compensation mechanisms, specifically: A waveform comparison unit is deployed at the receiving end of the transmission conductor to capture the key transition edges of the actual arriving signal. The key transition edges include the inflection points of the rising and falling edges of the signal. The deviation between the critical transition edge and the standard timing position is extracted. When the deviation persists within a fixed distance interval, the distance code of the interval is fed back to the transmitter. The feedback information is transmitted through an independent control channel. The angle determination threshold of the electromagnetic field induction coil group at the corresponding position is corrected according to the feedback distance code, the correction amount is proportional to the time integral value of the deviation amount, and the impedance adjustment instruction is regenerated based on the corrected angle determination threshold.

8. A system for improving circuit signal transmission quality, used for implementing the method for improving circuit signal transmission quality according to any one of claims 1 to 7, characterized in that: include: A signal fluctuation acquisition module is used to obtain the real-time fluctuation characteristics of the original signal on the transmission conductor, wherein the real-time fluctuation characteristics include a fluctuation intensity distribution set and a periodic unit duration; a compensation waveform generating module, configured to generate a reverse compensation waveform that is mirror-symmetrical to the real-time fluctuation characteristic, wherein the reverse compensation waveform is injected into the transmission conductor during signal transmission; An impedance adjustment generation module, configured to set a dynamic tuning node on a transmission path of a transmission conductor, wherein the dynamic tuning node generates an impedance adjustment instruction according to a distribution of physical characteristics of the transmission conductor; The waveform offset correction module is used to synchronously correct the phase offset of the reverse compensation waveform according to the impedance adjustment instruction so that the injection point position of the reverse compensation waveform coincides with the peak area of ​​the transmission conductor impedance.

Images