A signal enhancement system and method for HRF+HPLC communication

Abstract

This application provides a signal enhancement system and method for HRF+HPLC communication, relating to the field of communication technology. The system includes: a dual-mode communication group construction module for constructing a dual-mode communication group, connected to the dual-mode communication group via an enhancement combiner; a limiting protection module for connecting the output of the enhancement combiner to a combining protection component, wherein when the HRF transmission signal and HPLC transmission signal corresponding to the HRF communication path and HPLC communication path are transmitted to the enhancement combiner, the composite transmission signal output by the enhancement combiner is limited for protection, resulting in a protected output composite transmission signal and a limited protection signal; and a signal reconstruction module for reconstructing the protected output composite transmission signal based on the limited protection signal, resulting in a reconstructed transmission signal. This application solves the technical problem of poor communication stability in existing technologies, achieving the technical effects of improving signal transmission quality and enhancing communication stability.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a signal enhancement system and method for HRF+HPLC communication. Background Technology

[0002] In modern communication systems, especially in scenarios where multiple signals need to be transmitted simultaneously, how to effectively achieve signal fusion and protection across different communication links is a long-standing and challenging problem.

[0003] Currently, existing technologies typically rely on simple combiners to merge multiple signals. However, when faced with the mixed transmission of signals from different frequency bands, the frequency isolation is insufficient, easily causing mutual interference and leading to a decline in communication quality. For example, when the HRF communication path operates in the 20-30 MHz band and the HPLC communication path operates in the 1-12 MHz band, insufficient frequency isolation will directly affect the demodulation accuracy of the receiver due to out-of-band leakage and harmonic interference. Furthermore, existing combiners generally have shortcomings in signal protection, especially when the external signal source experiences rapid instantaneous changes. They cannot effectively suppress excessively high transient voltages or signal amplitudes, easily damaging downstream equipment. Some technologies add protection circuits to the combiner output, but their limiting protection is often based on a fixed threshold, lacking dynamic adjustment capabilities and unable to adaptively optimize for different communication environments or interference characteristics.

[0004] In summary, existing technologies suffer from technical problems such as insufficient frequency domain isolation accuracy and lack of adaptive adjustment capability in amplitude limiting protection, which lead to mutual interference between signals of different frequency bands during combined transmission and the inability to effectively suppress transient overvoltage, further affecting the stability of the communication system and the reliability of data transmission. Summary of the Invention

[0005] The purpose of this application is to provide a signal enhancement system and method for HRF+HPLC communication, in order to solve the technical problems in the prior art where insufficient frequency domain isolation accuracy and lack of adaptive adjustment capability of amplitude limiting protection lead to mutual interference between signals of different frequency bands during combined transmission and the inability to effectively suppress transient overvoltage, which further affects the stability of the communication system and the reliability of data transmission.

[0006] In view of the above problems, this application provides a signal enhancement system and method for HRF+HPLC communication.

[0007] In a first aspect, this application also provides a signal enhancement system for HRF+HPLC communication, comprising: a dual-mode communication group construction module for constructing a dual-mode communication group, the dual-mode communication group including an HRF communication path and an HPLC communication path, connected to the dual-mode communication group via an enhancement combiner, wherein the input terminal of the enhancement combiner is connected to the output terminals of the HRF communication path and the HPLC communication path, and the frequency domains of the HRF communication path and the HPLC communication path are isolated in the enhancement combiner; a limiting protection module for connecting the output terminal of the enhancement combiner to a combining protection component, wherein when the HRF transmission signal and the HPLC transmission signal corresponding to the HRF communication path and the HPLC communication path are transmitted to the enhancement combiner, respectively, the combining protection component limits the amplitude of the composite transmission signal output by the enhancement combiner to obtain a protected output composite transmission signal and a limiting protection signal; and a signal reconstruction module for reconstructing the protected output composite transmission signal based on the limiting protection signal to obtain a reconstructed transmission signal.

[0008] Preferably, the signal enhancement system for HRF+HPLC communication further includes: an index identification unit, used to acquire an external signal source of the dual-mode communication group and identify the instantaneous change index of the signal source of the external signal source; and a protection component construction unit, used to construct a branch-combining protection component when the instantaneous change index of the signal source is greater than a preset instantaneous change index, wherein the branch-combining protection component includes a branch protection component connected to the HRF communication path, a branch protection component connected to the HPLC communication path, and a combining protection component connected to the output terminal of the enhancement combiner.

[0009] Preferably, the signal enhancement system for HRF+HPLC communication further includes: the branch protection component is a gas discharge tube, and the combining protection component is a TSV transient voltage suppressor.

[0010] Preferably, the signal enhancement system for HRF+HPLC communication further includes: a signal acquisition unit for acquiring enhanced HRF transmission signals and enhanced HPLC transmission signals; and a signal sampling unit for setting composite signal sampling points, wherein the combining protection device samples the enhanced HRF transmission signals and the enhanced HPLC transmission signals according to the composite signal sampling points to obtain a composite transmission signal.

[0011] Preferably, the signal enhancement system for HRF+HPLC communication further includes: a parameter reading unit for reading the loading parameters of the combining protection device, including a trigger threshold, a critical threshold, a short-time window, and a sampling rate; and a limiting protection unit for limiting the amplitude of the composite transmission signal output by the enhancing combiner according to the loading parameters, to obtain a protected output composite transmission signal frame and a limiting protection signal frame, and continuously outputting the protected output composite transmission signal frame and the limiting protection signal frame to obtain a protected output composite transmission signal and a limiting protection signal.

[0012] Preferably, the signal enhancement system for HRF+HPLC communication further includes: a clamped sample interval marking unit, used to mark clamped sample intervals on the composite transmission signal output by the amplitude limiting protection signal; a reconstruction feature recognition unit, used to identify the reconstruction features of each clamped sample interval, including interval length, signal bandwidth, and sparsity; a signal reconstruction algorithm acquisition unit, used to set a signal reconstruction selector, input the reconstruction features of each clamped sample interval into the signal reconstruction selector to obtain the signal reconstruction algorithm matching each clamped sample interval, wherein the signal reconstruction selector is a binary classification signal reconstruction algorithm, including a time-domain interpolation algorithm and a compressed sensing sparse reconstruction algorithm; and an interval signal reconstruction unit, used to perform interval signal reconstruction according to the signal reconstruction algorithm matching each clamped sample interval to obtain the reconstructed transmission signal.

[0013] Preferably, the signal enhancement system for HRF+HPLC communication further includes: an initial reconstructed interval signal acquisition channel, used to acquire signal samples of the current clamped sample interval, construct an interpolation matrix and perform interpolation processing on the signal samples to obtain an initial reconstructed interval signal; and a reconstructed interval signal output channel, used to acquire the residual and noise variance of the initial reconstructed interval signal, calculate the confidence level of the current clamped sample interval, and output the reconstructed interval signal of the current clamped sample interval if the confidence level of the current clamped sample interval meets a preset confidence threshold.

[0014] Preferably, the signal enhancement system for HRF+HPLC communication further includes: a partitioning channel for dividing the current clamped sample interval into unclamped signal samples and clamped signal samples; a clamped signal sample update channel for obtaining the sparse solution of the unclamped signal samples, reconstructing the clamped signal samples according to the sparse solution, and updating the clamped signal samples; and a reconstructed interval signal output channel for outputting the reconstructed interval signal of the current clamped sample interval according to the unclamped signal samples and the updated clamped signal samples.

[0015] Preferably, the signal enhancement system for HRF+HPLC communication further includes: an isolation unit for embedding a bandpass filter bank in the enhancement combiner to isolate the pass frequency bands of the HRF communication path and the HPLC communication path through the bandpass filter bank; and a pass frequency band obtaining unit for wherein the pass frequency band of the HRF communication path includes 20–30MHz, and the pass frequency band of the HPLC communication path includes 1–12MHz.

[0016] Secondly, this application provides a signal enhancement method for HRF+HPLC communication, comprising: constructing a dual-mode communication group, the dual-mode communication group including an HRF communication path and an HPLC communication path, connecting the dual-mode communication group through an enhancement combiner, wherein the input terminal of the enhancement combiner is connected to the output terminals of the HRF communication path and the HPLC communication path, and the frequency domains of the HRF communication path and the HPLC communication path are isolated in the enhancement combiner; connecting the output terminal of the enhancement combiner to a combining protection device; when the HRF transmission signal and the HPLC transmission signal corresponding to the HRF communication path and the HPLC communication path are transmitted to the enhancement combiner respectively, the combining protection device limits the amplitude of the composite transmission signal output by the enhancement combiner to obtain a protected output composite transmission signal and a limiting protection signal; and reconstructing the protected output composite transmission signal based on the limiting protection signal to obtain a reconstructed transmission signal.

[0017] The technical solution provided in this application has at least the following technical effects or advantages: by achieving the technical goal of high-precision isolation and dynamic amplitude limiting protection of multi-band signals, it achieves the technical effects of improving signal transmission quality, enhancing system anti-interference capability, and ensuring the safe operation of downstream equipment.

[0018] The above description is merely an overview of the technical solution of this application. To enable a clearer understanding of the technical means of this application and to facilitate its implementation according to the description, and to make the above and other objects, features, and advantages of this application more apparent, specific embodiments of this application are described below. It should be understood that the content described in this section is not intended to identify key or important features of the embodiments of this application, nor is it intended to limit the scope of this application. Other features of this application will become readily apparent through the following description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the signal enhancement system for HRF+HPLC communication according to this application.

[0021] Figure 2 This is a schematic flowchart of a signal enhancement method for HRF+HPLC communication according to this application.

[0022] Figure labeling: Dual-mode communication group construction module 1, amplitude limiting protection module 2, signal reconstruction module 3. Detailed Implementation

[0023] This application provides a signal enhancement system and method for HRF+HPLC communication, solving the technical problems in existing technologies where insufficient frequency domain isolation accuracy and lack of adaptive adjustment capability in amplitude limiting protection lead to mutual interference between signals of different frequency bands during combined transmission, and the inability to effectively suppress transient overvoltage, further affecting the stability of the communication system and the reliability of data transmission. It achieves the technical goals of high-precision isolation and dynamic amplitude limiting protection for multi-frequency band signals, thereby improving signal transmission quality, enhancing the system's anti-interference capability, and ensuring the safe operation of downstream equipment.

[0024] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. It should be understood that this application is not limited to the exemplary embodiments described herein. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. It should also be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings, not all of them.

[0025] Example 1, please refer to the appendix. Figure 1 This application provides a signal enhancement system for HRF+HPLC communication, specifically including:

[0026] Dual-mode communication group construction module 1 is used to construct a dual-mode communication group, which includes an HRF communication path and an HPLC communication path. The dual-mode communication group is connected through an enhancement combiner, wherein the input terminal of the enhancement combiner is connected to the output terminals of the HRF communication path and the HPLC communication path, and the frequency domain of the HRF communication path and the HPLC communication path are isolated in the enhancement combiner.

[0027] Specifically, constructing a dual-mode communication group refers to combining two different communication methods, HRF and HPLC, into a single unit. HRF is a high-frequency wireless communication channel suitable for transmitting data at higher frequencies, while HPLC is a high-frequency power line communication channel that uses power lines to transmit data signals. An enhancement combiner is an electronic device that combines multiple signals into a single signal. Its input connects to the outputs of both the HRF and HPLC communication channels, effectively integrating the two signals. Furthermore, the frequency isolation in the enhancement combiner ensures that signals from different communication channels do not interfere with each other in frequency during the signal combining process.

[0028] The amplitude limiting protection module 2 is used to connect the output terminal of the enhancement combiner to the combining protection component. When the HRF transmission signal and HPLC transmission signal corresponding to the HRF communication path and the HPLC communication path are transmitted to the enhancement combiner, the composite transmission signal output by the enhancement combiner is limited and protected according to the combining protection component, so as to obtain the composite transmission signal and the amplitude limiting protection signal of the protection output.

[0029] Specifically, after the boost combiner combines the signals from the HRF and HPLC communication paths, its output is connected to a protection circuit, known as the combining protection device. The function of the combining protection device is to protect against voltage or power fluctuations during signal transmission, preventing the signal amplitude from exceeding the acceptable range. The HRF communication path corresponds to the HRF transmission signal, and the HPLC communication path corresponds to the HPLC transmission signal. When the two signals are transmitted to the boost combiner, they form a composite transmission signal. The combining protection device limits the amplitude of the signal when it exceeds the safe range, i.e., amplitude limiting protection, generating a composite transmission signal with its peak value limited within the safe range. Simultaneously, it generates an amplitude limiting protection signal that records the protection action, containing amplitude limiting (clipping) information, such as a copy signal directly reflecting the clamping voltage of the TVS diode.

[0030] The signal reconstruction module 3 is used to reconstruct the composite transmission signal of the protection output based on the amplitude limiting protection signal to obtain the reconstructed transmission signal.

[0031] Specifically, signal reconstruction is performed on the composite transmission signal output by the limiting protection signal. That is, the clipped or distorted time period information recorded in the limiting protection signal is used to repair the composite transmission signal that has been processed by the protection and output from the enhancement combiner through the combining protection device, so as to restore its waveform close to the original state. This repairs or reduces the signal distortion or information loss caused by limiting protection (clipping), restores the information of the clipped part, and improves signal quality and communication reliability.

[0032] Furthermore, this application also includes: an index identification unit, used to acquire an external signal source of the dual-mode communication group and identify the instantaneous change index of the signal source of the external signal source; and a protection component construction unit, used to construct a branch-combining protection component when the instantaneous change index of the signal source is greater than a preset instantaneous change index, wherein the branch-combining protection component includes a branch protection component connected to the HRF communication path, a branch protection component connected to the HPLC communication path, and a combining protection component connected to the output terminal of the enhanced combiner.

[0033] Specifically, input signals are received from external devices connected to the dual-mode communication group to obtain an external signal source. This external signal source can be a signal generator, communication base station, power supply and communication module, etc., responsible for providing raw data signals to the HRF and HPLC communication paths. The stability of the external signal source directly affects the quality of subsequent signal processing; therefore, its status needs to be monitored.

[0034] Then, identify the instantaneous change index of the external signal source, analyze the change characteristics of the amplitude, frequency or phase of the output signal of the external signal source, and use a quantitative index to represent its change rate or amplitude, reflecting the intensity of the signal fluctuation in an instant.

[0035] Next, when the instantaneous change index of the signal source exceeds the preset instantaneous change index, it indicates that the signal change of the external signal source exceeds the safety threshold. At this time, it is necessary to construct a branch-combiner protection device to protect the signal transmission safety. The branch-combiner protection device is a protection system composed of multiple protection devices. The branch protection device is used to protect the signal lines of the HRF communication path and the HPLC communication path individually to prevent single-path signal overload; the combiner protection device is used to protect the composite signal at the output of the enhancer combiner to avoid excessively high signal amplitude after combining, which could lead to equipment damage or communication quality degradation. Table 1 shows the configuration table for external signal source protection of the dual-mode communication group.

[0036] Table 1: External Signal Source Protection Configuration Table for Dual-Mode Communication Group

[0037]

[0038] Furthermore, this application also includes: the branch protection component is a gas discharge tube, and the closing protection component is a TSV transient voltage suppressor.

[0039] Specifically, the branch protection components installed on the HRF and HPLC communication lines are gas discharge tubes. These tubes are filled with a specific gas; when the line voltage exceeds their breakdown voltage, the gas breaks down and conducts, rapidly diverting the excessive current to ground and preventing damage to the signal lines and downstream equipment due to overvoltage. Gas discharge tubes also provide excellent protection against high-energy transient interference such as lightning strikes and power grid surges.

[0040] The combining protection device installed at the output of the enhanced combiner is a TSV transient voltage suppressor. A TSV transient voltage suppressor is a semiconductor device used to quickly suppress transient overvoltages. When the voltage in the composite signal rises above the safety threshold in a very short time, the TSV transient voltage suppressor will turn on within nanoseconds and clamp the voltage within a safe range, thereby protecting the combined signal transmission system from high voltage impact.

[0041] Furthermore, this application also includes: a signal acquisition unit for acquiring enhanced HRF transmission signals and enhanced HPLC transmission signals; and a signal sampling unit for setting composite signal sampling points, wherein the combining protection device samples the enhanced HRF transmission signals and the enhanced HPLC transmission signals according to the composite signal sampling points to obtain a composite transmission signal.

[0042] Specifically, the process involves acquiring enhanced HRF transmission signals and enhanced HPLC transmission signals, which means receiving two types of communication signals that have undergone gain processing. The enhanced HRF transmission signal is a data signal that has been transmitted and amplified through a high-frequency wireless channel, while the enhanced HPLC transmission signal is a data signal that has been transmitted and amplified through a high-frequency power line channel. This improves the signal strength and provides better anti-interference capabilities and transmission quality in subsequent combining and processing stages.

[0043] Then, setting composite signal sampling points refers to determining specific time positions to collect signal samples before signal synthesis. These samples can be distributed according to fixed intervals or adaptive strategies to ensure that the waveform characteristics of the signal can be completely captured during sampling. The selection of composite signal sampling points affects the accuracy and fidelity of the final composite signal. Too few sampling points may lead to information loss, while too many will increase the processing burden.

[0044] Next, the combining protection device will simultaneously sample the enhanced HRF transmission signal and the enhanced HPLC transmission signal according to the set composite signal sampling points. The two enhanced signals from different sources are aligned and acquired using the same time reference, thereby generating a composite transmission signal containing information from both signals. A composite transmission signal is a signal form that combines multiple signals into a single transmission path, reducing the use of physical lines and enabling coordinated transmission of multiple communication modes.

[0045] Furthermore, this application also includes: a parameter reading unit, used to read the loading parameters of the combining protection device, including a trigger threshold, a critical threshold, a short-time window, and a sampling rate; and a limiting protection unit, used to limit the amplitude of the composite transmission signal output by the enhanced combiner according to the loading parameters, to obtain a composite transmission signal frame and a limiting protection signal frame output by the protection, and to continuously output the composite transmission signal frame and the limiting protection signal frame output by the protection to obtain the composite transmission signal and the limiting protection signal output by the protection.

[0046] Specifically, the loading parameters of the combined circuit protection device are read. These loading parameters include the trigger threshold, critical threshold, short-time window, and sampling rate. The trigger threshold indicates when the protection function will activate when the signal amplitude reaches a specific value; the critical threshold represents the upper limit of the protection device's operation; the short-time window represents the time range for analyzing signal changes within a very short period; and the sampling rate refers to the number of times the signal is sampled per second. These loading parameters collectively determine the sensitivity and accuracy of the protection response.

[0047] Then, based on the loading parameters, the composite transmission signal output by the enhanced combiner is subjected to amplitude limiting protection, and the protected signal is split into continuous small segments as composite transmission signal frames for protection output, while a corresponding amplitude limiting protection signal frame is generated. The amplitude limiting protection signal frame is a specific record of the protection action. Subsequently, by continuously outputting the composite transmission signal frame and the amplitude limiting protection signal frame, a continuous protection output composite transmission signal and amplitude limiting protection signal are finally obtained.

[0048] Furthermore, this application also includes: a clamping sample interval marking unit, used to mark clamping sample intervals on the composite transmission signal output by the amplitude limiting protection signal; a reconstruction feature recognition unit, used to identify the reconstruction features of each clamping sample interval, including interval length, signal bandwidth, and sparsity; a signal reconstruction algorithm acquisition unit, used to set a signal reconstruction selector, input the reconstruction features of each clamping sample interval into the signal reconstruction selector to obtain the signal reconstruction algorithm matching each clamping sample interval, wherein the signal reconstruction selector is a binary classification signal reconstruction algorithm, including a time domain interpolation algorithm and a compressed sensing sparse reconstruction algorithm; and an interval signal reconstruction unit, used to perform interval signal reconstruction according to the signal reconstruction algorithm matching each clamping sample interval to obtain the reconstructed transmission signal.

[0049] Specifically, by utilizing the trigger information recorded in the amplitude limiting protection signal, the specific time period or data segment in the composite transmission signal that is clamped by the amplitude limiting device is located and marked, thus obtaining the clamping sample interval. The clamping sample interval is a continuous segment in the amplitude limiting protection signal whose amplitude variation is restricted.

[0050] Identify the reconstruction features of each clamped sample interval in the clamped sample interval, that is, analyze the specific characteristics of the marked interval. For example, the interval length represents the number of sampling points contained in the clamped sample interval, the signal bandwidth represents the range of the signal frequency components in the clamped sample interval, and the sparsity represents the proportion of non-zero coefficients of the signal in a certain transform domain of the clamped sample interval.

[0051] A signal reconstruction selector is configured to automatically select the repair algorithm based on input features. The feature data of each clamped sample interval is input into the signal reconstruction selector to obtain the corresponding reconstruction scheme. The signal reconstruction selector has a binary classification structure, including time-domain interpolation algorithms and compressed sensing sparse reconstruction algorithms. Time-domain interpolation algorithms are suitable for situations where signal changes are gradual and there are few lost points, while compressed sensing sparse reconstruction algorithms are suitable for situations where the signal is sparse, has narrow bandwidth, but a large loss ratio.

[0052] The interval signal is reconstructed according to the signal reconstruction algorithm matched for each clamped sample interval. Based on the result given by the signal reconstruction selector, the corresponding repair method is used for each clamped sample interval to fill in the missing or distorted data, and finally obtain the complete reconstructed transmission signal, so that the reconstructed transmission signal is as close as possible to the original undisturbed signal.

[0053] Furthermore, this application also includes: an initial reconstructed interval signal acquisition channel, used to acquire signal samples of the current clamped sample interval, construct an interpolation matrix and perform interpolation processing on the signal samples to obtain an initial reconstructed interval signal; and a reconstructed interval signal output channel, used to acquire the residual and noise variance of the initial reconstructed interval signal, calculate the confidence level of the current clamped sample interval, and if the confidence level of the current clamped sample interval meets a preset confidence threshold, output the reconstructed interval signal of the current clamped sample interval.

[0054] Specifically, the signal samples of the current clamped sample interval are obtained, that is, the actual signal data points are extracted from the interval marked by amplitude limiting protection. The signal samples may be missing or have limited amplitude. Based on the known positions of the data points in time or space, a mathematical structure is generated to calculate the values ​​of the missing points. An interpolation matrix is ​​constructed, and the values ​​at the missing positions are calculated using the interpolation matrix and existing data, thereby obtaining the initial reconstructed interval signal.

[0055] The initial reconstructed interval signal is compared with the original signal to obtain the residual between the two. The smaller the residual, the closer the restoration is to the true signal. The statistical value of the random noise intensity in the initial reconstructed interval signal is used to obtain the noise variance. The smaller the noise variance, the less noise in the signal. The confidence level of the current clamped sample interval can be calculated using the residual and noise variance, representing the reliability of the restoration result. The confidence level of the current clamped sample interval can be obtained by weighting the residual and noise variance. The weighting coefficients can be customized by those skilled in the art according to the actual situation. The smaller the residual and noise variance, the higher the confidence level of the current clamped sample interval, and vice versa.

[0056] If the confidence level of the current clamped sample interval meets the preset confidence threshold, the repair result is considered sufficiently reliable, and the initial reconstructed interval signal of the current clamped sample interval can be output as the final repair data, resulting in the output of the reconstructed interval signal of the current clamped sample interval. Conversely, if the preset confidence threshold is not met, further repair may be necessary to improve the accuracy of the recovery.

[0057] Furthermore, this application also includes: a partitioning channel for dividing the current clamped sample interval into unclamped signal samples and clamped signal samples; a clamped signal sample update channel for obtaining the sparse solution of the unclamped signal samples, reconstructing the clamped signal samples according to the sparse solution, and updating the clamped signal samples; and a reconstructed interval signal output channel for outputting the reconstructed interval signal of the current clamped sample interval according to the unclamped signal samples and the updated clamped signal samples.

[0058] Specifically, the current clamped sample range is divided into two parts: the part of the signal data that is not affected by amplitude limitation and retains the original waveform is taken as the unclamped signal sample, while the part that is truncated or distorted by amplitude is taken as the clamped signal sample. This separates reliable information from damaged information so that the missing parts can be repaired in a targeted manner in subsequent processing.

[0059] By using sparse representation theory, unclamped signal samples are represented in the transform domain (such as wavelet domain or Fourier domain) as a set of as few non-zero coefficients as possible, sparse solutions of unclamped signal samples are obtained, and the main structural features of the signal are captured. Clamped signal samples are reconstructed according to the sparse solutions, and the original shape of the clamped signal is inferred, thereby updating the clamped signal samples and making them closer to the original signal.

[0060] Based on the unclamped signal sample and the updated clamped signal sample, the two parts of data are recombined to form a complete signal segment that restores the original waveform as much as possible, and the reconstructed interval signal of the current clamped sample interval is output.

[0061] Furthermore, this application also includes: an isolation unit for embedding a bandpass filter bank in the enhancement combiner to isolate the pass frequency bands of the HRF communication path and the HPLC communication path through the bandpass filter bank; and a pass frequency band obtaining unit for wherein the pass frequency band of the HRF communication path includes 20–30 MHz and the pass frequency band of the HPLC communication path includes 1–12 MHz.

[0062] Specifically, a bandpass filter bank is incorporated within the enhancement combiner. A bandpass filter is an electronic component that allows signals within a specific frequency range to pass through while blocking signals of other frequencies. By using the bandpass filter bank, the frequency ranges of the HRF and HPLC communication paths can be precisely controlled, preventing signal overlap and interference.

[0063] Then, a bandpass filter bank isolates the transmission frequency bands of the HRF and HPLC communication paths. Specifically, the signal transmission frequency band for the HRF communication path is set in the 20 to 30 MHz range, while the signal transmission frequency band for the HPLC communication path is set in the 1 to 12 MHz range. This frequency band division ensures that the two signals maintain their respective spectral spaces even when transmitted simultaneously, preventing crosstalk. For example, if the HRF signal is 25 MHz and the HPLC signal is 10 MHz, they are in different frequency ranges and therefore will not interfere with each other.

[0064] In summary, the signal enhancement system for HRF+HPLC communication provided in this application has the following technical effects: by achieving the technical goals of high-precision isolation and dynamic amplitude limiting protection of multi-band signals, it can improve signal transmission quality, enhance the system's anti-interference capability, and ensure the safe operation of downstream equipment.

[0065] Example 2: Based on the same inventive concept as the HRF+HPLC communication signal enhancement system in the previous examples, this application also provides a signal enhancement method for HRF+HPLC communication. Please refer to the appendix. Figure 2The method includes: constructing a dual-mode communication group, which includes an HRF communication path and an HPLC communication path, connected to the dual-mode communication group via an enhancement combiner, wherein the input terminal of the enhancement combiner is connected to the output terminals of the HRF communication path and the HPLC communication path, and the frequency domains of the HRF communication path and the HPLC communication path are isolated in the enhancement combiner; connecting the output terminal of the enhancement combiner to a combining protection component; when the HRF transmission signal and the HPLC transmission signal corresponding to the HRF communication path and the HPLC communication path are transmitted to the enhancement combiner, respectively, the composite transmission signal output by the enhancement combiner is limited and protected according to the combining protection component, resulting in a protected output composite transmission signal and a limited protection signal; and reconstructing the protected output composite transmission signal based on the limited protection signal to obtain a reconstructed transmission signal.

[0066] Furthermore, the signal enhancement method for HRF+HPLC communication further includes: acquiring an external signal source of the dual-mode communication group, identifying the instantaneous change index of the signal source of the external signal source; when the instantaneous change index of the signal source is greater than a preset instantaneous change index, constructing a branch-combining protection device, wherein the branch-combining protection device includes a branch protection device connected to the HRF communication path, a branch protection device connected to the HPLC communication path, and a combining protection device connected to the output terminal of the enhancement combiner.

[0067] Furthermore, the signal enhancement method for HRF+HPLC communication further includes: the branch protection device is a gas discharge tube, and the combining protection device is a TSV transient voltage suppressor.

[0068] Furthermore, the signal enhancement method for HRF+HPLC communication further includes: acquiring enhanced HRF transmission signals and enhanced HPLC transmission signals; setting composite signal sampling points, wherein the combining protection device samples the enhanced HRF transmission signals and the enhanced HPLC transmission signals according to the composite signal sampling points to obtain a composite transmission signal.

[0069] Furthermore, the signal enhancement method for HRF+HPLC communication further includes: reading the loading parameters of the combining protection device, including trigger threshold, critical threshold, short-time window, and sampling rate; performing amplitude limiting protection on the composite transmission signal output by the enhancement combiner according to the loading parameters to obtain a composite transmission signal frame and an amplitude limiting protection signal frame output by protection; and continuously outputting the composite transmission signal frame and the amplitude limiting protection signal frame output by protection to obtain a composite transmission signal and an amplitude limiting protection signal output by protection.

[0070] Furthermore, the signal enhancement method for HRF+HPLC communication further includes: marking clamped sample intervals on the composite transmission signal output by the amplitude limiting protection signal; identifying the reconstruction features of each clamped sample interval, including interval length, signal bandwidth, and sparsity; setting a signal reconstruction selector, inputting the reconstruction features of each clamped sample interval into the signal reconstruction selector to obtain a signal reconstruction algorithm matching each clamped sample interval, wherein the signal reconstruction selector is a binary classification signal reconstruction algorithm, including a time-domain interpolation algorithm and a compressed sensing sparse reconstruction algorithm; and reconstructing the interval signal according to the signal reconstruction algorithm matching each clamped sample interval to obtain the reconstructed transmission signal.

[0071] Furthermore, the signal enhancement method for HRF+HPLC communication further includes: acquiring signal samples of the current clamped sample interval, constructing an interpolation matrix and performing interpolation processing on the signal samples to obtain an initial reconstructed interval signal; acquiring the residual and noise variance of the initial reconstructed interval signal, calculating the confidence level of the current clamped sample interval, and if the confidence level of the current clamped sample interval meets a preset confidence threshold, outputting the reconstructed interval signal of the current clamped sample interval.

[0072] Furthermore, the signal enhancement method for HRF+HPLC communication further includes: dividing the current clamped sample interval into unclamped signal samples and clamped signal samples; obtaining the sparse solution of the unclamped signal samples, reconstructing the clamped signal samples according to the sparse solution, and updating the clamped signal samples; and outputting the reconstructed interval signal of the current clamped sample interval according to the unclamped signal samples and the updated clamped signal samples.

[0073] Furthermore, the signal enhancement method for HRF+HPLC communication further includes: embedding a bandpass filter group in the enhancement combiner, and isolating the pass frequency bands of the HRF communication path and the HPLC communication path through the bandpass filter group; wherein the pass frequency band of the HRF communication path includes 20–30MHz, and the pass frequency band of the HPLC communication path includes 1–12MHz.

[0074] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The signal enhancement system and specific example of HRF+HPLC communication in the aforementioned embodiment one are also applicable to the signal enhancement method of HRF+HPLC communication in this embodiment. Through the foregoing detailed description of the signal enhancement system of HRF+HPLC communication, those skilled in the art can clearly understand the signal enhancement method of HRF+HPLC communication in this embodiment. Therefore, for the sake of brevity, it will not be described in detail here.

[0075] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0076] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of this application and its equivalents, this application also intends to include such modifications and variations.

Claims

1. A signal enhancement system for HRF+HPLC communication, characterized in that, The system includes: A dual-mode communication group construction module is used to construct a dual-mode communication group, which includes an HRF communication path and an HPLC communication path. The dual-mode communication group is connected through an enhancement combiner, wherein the input terminal of the enhancement combiner is connected to the output terminals of the HRF communication path and the HPLC communication path, and the frequency domain of the HRF communication path and the HPLC communication path are isolated in the enhancement combiner. A limiting protection module is used to connect the output terminal of the enhancement combiner to the combining protection component. When the HRF transmission signal and HPLC transmission signal corresponding to the HRF communication path and the HPLC communication path are transmitted to the enhancement combiner, the combining protection component limits the amplitude of the composite transmission signal output by the enhancement combiner to obtain the composite transmission signal and the limiting protection signal of the protection output. The signal reconstruction module is used to reconstruct the composite transmission signal output by the protection based on the amplitude limiting protection signal to obtain the reconstructed transmission signal; The amplitude limiting protection module includes: The parameter reading unit is used to read the loading parameters of the combining protection component, including the trigger threshold, critical threshold, short-time window, and sampling rate. A limiting protection unit is used to limit the amplitude of the composite transmission signal output by the enhanced combiner according to the loading parameters, so as to obtain a composite transmission signal frame and a limiting protection signal frame for protection output. The composite transmission signal frame and the limiting protection signal frame for protection output are continuously output to obtain a composite transmission signal and a limiting protection signal for protection output. The signal reconstruction module includes: A clamping sample interval marking unit is used to mark a clamping sample interval on the composite transmission signal output by the protection based on the amplitude limiting protection signal; The reconstruction feature recognition unit is used to identify the reconstruction features of each clamp sample interval in the clamp sample interval, including interval length, signal bandwidth and sparsity. The signal reconstruction algorithm acquisition unit is used to set the signal reconstruction selector, input the reconstruction features of each clamped sample interval into the signal reconstruction selector to obtain the signal reconstruction algorithm matching each clamped sample interval. The signal reconstruction selector is a binary classification signal reconstruction algorithm, including a time domain interpolation algorithm and a compressed sensing sparse reconstruction algorithm. The interval signal reconstruction unit is used to reconstruct the interval signal according to the signal reconstruction algorithm matched for each clamped sample interval, so as to obtain the reconstructed transmission signal.

2. The signal enhancement system for HRF+HPLC communication as described in claim 1, characterized in that, The dual-mode communication group construction module includes: The indicator identification unit is used to acquire the external signal source of the dual-mode communication group and identify the instantaneous change indicator of the signal source of the external signal source; The protection component construction unit is used to construct a branch-combining protection component when the instantaneous change index of the signal source is greater than a preset instantaneous change index. The branch-combining protection component includes a branch protection component connected to the HRF communication path, a branch protection component connected to the HPLC communication path, and a combining protection component connected to the output terminal of the enhanced combiner.

3. The signal enhancement system for HRF+HPLC communication as described in claim 2, characterized in that, The branch protection component is a gas discharge tube, and the combined protection component is a TSV transient voltage suppressor.

4. The signal enhancement system for HRF+HPLC communication as described in claim 2, characterized in that, The dual-mode communication group construction module also includes: The signal acquisition unit is used to acquire enhanced HRF transmission signals and enhanced HPLC transmission signals; The signal sampling unit is used to set composite signal sampling points. The combining protection device samples the enhanced HRF transmission signal and the enhanced HPLC transmission signal according to the composite signal sampling points to obtain a composite transmission signal.

5. The signal enhancement system for HRF+HPLC communication as described in claim 1, characterized in that, The signal reconstruction algorithm acquisition unit includes: The initial reconstructed interval signal is used to obtain the signal sample of the current clamped sample interval, and an interpolation matrix is ​​constructed to perform interpolation processing on the signal sample to obtain the initial reconstructed interval signal. The reconstructed interval signal output channel is used to obtain the residual and noise variance of the initial reconstructed interval signal, calculate the confidence level of the current clamped sample interval, and output the reconstructed interval signal of the current clamped sample interval if the confidence level of the current clamped sample interval meets the preset confidence threshold.

6. The signal enhancement system for HRF+HPLC communication as described in claim 5, characterized in that, The signal reconstruction algorithm acquisition unit further includes: Channel segmentation is used to divide the current clamped sample interval into unclamped signal samples and clamped signal samples; The clamped signal sample update channel is used to obtain the sparse solution of the unclamped signal sample, reconstruct the clamped signal sample according to the sparse solution, and update the clamped signal sample. The reconstructed interval signal output channel is used to output the reconstructed interval signal of the current clamped sample interval according to the unclamped signal sample and the updated clamped signal sample.

7. The signal enhancement system for HRF+HPLC communication as described in claim 1, characterized in that, The dual-mode communication group construction module also includes: An isolation unit is used to integrate a bandpass filter bank in the enhancement combiner to isolate the pass frequency bands of the HRF communication path and the HPLC communication path through the bandpass filter bank; The unit is obtained through a frequency band, wherein the frequency band of the HRF communication path includes 20–30 MHz, and the frequency band of the HPLC communication path includes 1–12 MHz.

8. A signal enhancement method for HRF+HPLC communication, characterized in that, Performed by a signal enhancement system for HRF+HPLC communication according to any one of claims 1 to 7, the signal enhancement method for HRF+HPLC communication includes: A dual-mode communication group is constructed, which includes an HRF communication path and an HPLC communication path. The dual-mode communication group is connected through an enhancement combiner, wherein the input terminal of the enhancement combiner is connected to the output terminals of the HRF communication path and the HPLC communication path, and the frequency domain of the HRF communication path and the HPLC communication path are isolated in the enhancement combiner. The output terminal of the enhancement combiner is connected to the combining protection component. When the HRF transmission signal and HPLC transmission signal corresponding to the HRF communication path and the HPLC communication path are transmitted to the enhancement combiner, the composite transmission signal output by the enhancement combiner is limited and protected according to the combining protection component, so as to obtain the composite transmission signal and the limiting protection signal of the protection output. Based on the amplitude limiting protection signal, the composite transmission signal output by the protection is reconstructed to obtain the reconstructed transmission signal.

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