CN-121984810-A - Capacitor starting regulation and control method and system for air-ground integrated cooperative communication transmission

CN121984810ACN 121984810 ACN121984810 ACN 121984810ACN-121984810-A

Abstract

The application relates to the technical field of wireless communication, and discloses a capacitor starting regulation and control method and system for air-ground integrated cooperative communication transmission. The method comprises the steps of collecting transmission distance and line impedance values, processing the transmission distance and line impedance values to obtain initial impedance estimated values, adjusting capacitor charging and discharging parameters, determining a correction parameter set through simulation verification, calculating a phase delay compensation factor, optimizing a propagation model, simulating a starting process to update damping control coefficients iteratively to obtain a stable prediction result, extracting a link establishment time index, fusing a damping control coordination mechanism to determine an adjustment strategy, applying the strategy, injecting damping pulse to inhibit oscillation to obtain a stable circuit state, calculating a signal-to-noise ratio, feeding back and adjusting until reaching standards, and establishing a reliable communication link. The application solves the problems of long link establishment time and severe oscillation in a high dynamic environment by the dynamic parameter adjustment and oscillation suppression technology, and improves the communication reliability and the link establishment efficiency.

Inventors

WEN ZIYANG
JI BAOFENG
ZHANG JI
ZHANG GAOYUAN
WANG DONGSHU
ZHANG PING
TAO FAZHAN
SUN LIFAN

Assignees

龙门实验室

Dates

Publication Date: 20260505
Application Date: 20260407

Claims (10)

1. A capacitor starting regulation and control method for air-ground integrated cooperative communication transmission is applied to a ground station, an overhead platform, and a matched acquisition unit, a capacitor starting circuit, a signal processing unit and a communication transmitting unit, and is characterized by comprising the following steps: S1, an acquisition unit acquires a transmission distance and a line impedance value between a ground station and a high-altitude platform, and transmits acquired data to a signal processing unit for processing to obtain an initial impedance estimated value; S2, based on the initial impedance estimated value, the signal processing unit adjusts charge and discharge parameters of the capacitor starting circuit to generate new parameter configuration, and a corrected parameter set is determined after simulation verification; S3, based on the corrected parameter set, the signal processing unit calculates a phase delay compensation factor, and iteratively optimizes parameters in a signal propagation path of the communication transmitting unit according to signal characteristics to obtain an optimized propagation model; S4, simulating a starting process of a capacitor starting circuit by a signal processing unit based on the optimized propagation model, and iteratively updating a damping control coefficient based on a simulation result to obtain a stable prediction result; S5, the signal processing unit extracts a link establishment time index from the stable prediction result, and fuses a damping control coordination mechanism after comparing the link establishment time index with a preset time threshold value to determine an adjustment strategy for shortening the link establishment time; S6, the signal processing unit applies the adjustment strategy to a starting sequence of the communication transmitting unit, monitors whether oscillation exists in the starting sequence in real time, if so, injects damping pulse into the capacitor starting circuit to inhibit, and adjusts parameter configuration of the starting sequence according to an inhibition result to obtain a stable circuit state; And S7, calculating a quality index by the signal processing unit according to the stable circuit state, and if the quality index does not reach a preset quality threshold, adjusting a damping parameter of the capacitor starting circuit and the transmitting power of the communication transmitting unit through a feedback loop until the capacitor starting circuit enters a stable working state and the quality index reaches the preset quality threshold, completing capacitor starting and establishing a reliable communication link between the ground station and the high-altitude platform.
2. The method according to claim 1, wherein the step S1 comprises: The acquisition unit acquires the transmission distance and the line impedance value between the ground station and the high-altitude platform through sensing measurement equipment on the ground station and the high-altitude platform, and sends the transmission distance and the line impedance value to the signal processing unit after preprocessing; The signal processing unit inputs the transmission distance data and the line impedance value into an adaptive damping algorithm model; calculating to obtain an initial impedance estimated value according to the output of the self-adaptive damping algorithm model; And if the deviation between the initial impedance estimated value and the historical impedance data exceeds a preset first deviation threshold, calibrating the learning rate parameter of the self-adaptive damping algorithm model, and recalculating the initial impedance estimated value.
3. The method according to claim 2, wherein said step S2 comprises: The signal processing unit inquires a circuit parameter database to acquire the current parameter configuration of the capacitor starting circuit according to the initial impedance estimated value; judging whether the matching deviation between the current parameter configuration and the initial impedance estimated value exceeds a preset matching threshold value, if so, adjusting the charge-discharge time constant of the capacitor starting circuit based on the initial impedance estimated value to generate a new parameter configuration; Inputting the new parameter configuration into a constructed circuit simulation test environment, monitoring oscillation amplitude and charge-discharge stability in a simulation process, and verifying the applicability of the new parameter configuration; And carrying out fine adjustment and optimization on the new parameter configuration according to the verification result, and determining a corrected parameter set.
4. The method according to claim 1, wherein the step S3 comprises: according to the corrected parameter set, the signal processing unit calculates a phase delay compensation factor, and performs compensation calculation aiming at signal amplitude attenuation to obtain a compensation value; according to the compensation value, adjusting impedance parameters and delay parameters in a signal propagation path, verifying stability of the adjusted parameters, and generating adjusted propagation path parameters; Constructing an initial signal propagation model by adopting the adjusted propagation path parameters, performing simulation verification on the initial signal propagation model, and judging whether the oscillation amplitude and the signal attenuation rate of the model meet preset performance indexes; if not, iteratively adjusting the phase delay compensation factor by a gradient descent method, recalculating the compensation value, adjusting the propagation path parameters, constructing a new initial signal propagation model to carry out simulation verification until the preset performance index is met, and obtaining an optimized propagation model.
5. The method according to claim 1, wherein the step S4 comprises: The signal processing unit combines the optimized propagation model with parameters of the capacitor starting circuit to simulate the complete starting process of the capacitor starting circuit; Extracting time sequence data of current and voltage waveforms in the simulation process, and respectively calculating the difference value between the peak value and the valley value of each waveform as the oscillation amplitude of the corresponding path; Judging whether the oscillation amplitude of any path of the current and the voltage is larger than a corresponding preset oscillation threshold value, if so, updating the damping control coefficient through a gradient descent algorithm; And re-inputting the updated damping control coefficient into the optimized propagation model, re-simulating the capacitor starting process, acquiring new current and voltage waveform data until the two paths of oscillation amplitudes are smaller than the corresponding preset oscillation threshold, and outputting the waveform data and the corresponding circuit parameters at the moment as stable prediction results.
6. The method according to claim 5, wherein the step S5 includes: The signal processing unit calculates the duration from the starting sequence to the time when the oscillation amplitude of the two paths of waveforms is smaller than the corresponding preset oscillation threshold value according to the stability prediction result, and the duration is used as a link establishment time index; judging whether the link establishment time index exceeds a preset time threshold, and taking the current circuit parameter as a basic adjustment strategy if the link establishment time index does not exceed the preset time threshold; if the time contribution value exceeds the time contribution value, analyzing the influence weight of the transmission distance, the impedance deviation and the capacitor charge-discharge parameters on the link establishment time, and quantifying the time contribution value of each factor to generate a preliminary adjustment scheme; A damping control coordination mechanism is fused, damping control coefficients and damping pulse injection parameters in the preliminary adjustment scheme are optimized, so that damping pulses are matched with the capacitor charge-discharge dynamic behaviors, and the damping pulse injection parameters comprise amplitude and injection nodes; And determining an adjustment strategy for shortening the link establishment time, wherein the adjustment strategy comprises a phase delay compensation factor, a damping control coefficient, a charge-discharge time constant and a pulse injection parameter according to the optimized scheme.
7. The method according to claim 1, wherein the step S6 comprises: The signal processing unit configures a phase delay compensation factor, a damping control coefficient, a charge-discharge time constant and a damping pulse injection parameter in an adjustment strategy into the initial configuration of a starting sequence of the communication transmitting unit, and starts the starting sequence; collecting current and voltage waveform data of a capacitor starting circuit in the running process of a starting sequence in real time, respectively calculating oscillation amplitudes of two paths of waveforms and identifying whether voltage zero-crossing oscillation or current reverse oscillation occurs; if oscillation is detected, injecting damping pulse into the capacitor starting circuit parameter configuration node according to oscillation amplitude, oscillation frequency and the damping pulse injection parameter; Observing waveform change after the damping pulse injection, and updating charge and discharge parameter configuration of a capacitor starting circuit based on the damping control coefficient and the phase delay compensation factor if the deviation from the stable prediction result exceeds a preset second deviation threshold; And repeatedly carrying out charge-discharge parameter configuration and damping pulse injection until the oscillation amplitudes of the two paths of waveforms are lower than the corresponding preset oscillation threshold values, thereby obtaining a stable circuit state.
8. The method according to claim 1, wherein the step S7 includes: The signal processing unit calculates a link signal-to-noise ratio as a quality index according to the stable circuit state, and judges whether the quality index is greater than or equal to a preset quality threshold; If not, synchronously adjusting damping parameters of the capacitor starting circuit and transmitting power of the communication transmitting unit through a feedback loop mechanism, collecting circuit state data again and calculating a link signal-to-noise ratio; And repeatedly executing the adjustment and judgment until the quality index is greater than or equal to a preset quality threshold value, confirming that the capacitor starting circuit enters a stable working state, completing capacitor starting and establishing a reliable communication link between the ground station and the high-altitude platform.
9. A capacitor start regulation system for air-ground integrated cooperative communication transmission, for implementing the capacitor start regulation method for air-ground integrated cooperative communication transmission according to any one of claims 1 to 8, wherein the capacitor start regulation system for air-ground integrated cooperative communication transmission comprises: the acquisition processing module is used for acquiring the transmission distance and the line impedance value between the ground station and the high-altitude platform by the acquisition unit, and sending the acquired data to the signal processing unit for processing to obtain an initial impedance estimated value; the parameter adjustment module is used for adjusting charge and discharge parameters of the capacitor starting circuit by the signal processing unit based on the initial impedance estimated value, generating new parameter configuration, and determining a corrected parameter set after simulation verification; The model optimization module is used for obtaining a phase delay compensation factor by calculation of the signal processing unit based on the corrected parameter set, and iteratively optimizing parameters in a signal propagation path of the communication transmitting unit according to signal characteristics to obtain an optimized propagation model; The process simulation module is used for simulating a starting process of the capacitor starting circuit based on the optimized propagation model, and iteratively updating the damping control coefficient based on the simulation result to obtain a stable prediction result; the link optimization module is used for extracting a link establishment time index from the stable prediction result by the signal processing unit, merging a damping control coordination mechanism after comparing the link establishment time index with a preset time threshold value, and determining an adjustment strategy for shortening the link establishment time; The oscillation suppression module is used for applying the adjustment strategy to a starting sequence of the communication transmitting unit by the signal processing unit, monitoring whether oscillation exists in the starting sequence in real time, if so, injecting damping pulse into the capacitor starting circuit for suppression, and adjusting parameter configuration of the starting sequence according to a suppression result to obtain a stable circuit state; And the feedback adjustment module is used for calculating a quality index according to the stable circuit state by the signal processing unit, and adjusting the damping parameter of the capacitor starting circuit and the transmitting power of the communication transmitting unit through a feedback loop if the quality index does not reach a preset quality threshold value until the capacitor starting circuit enters a stable working state and the quality index reaches the preset quality threshold value, so that the capacitor starting is completed and a reliable communication link between the ground station and the high-altitude platform is established.
10. A computer readable storage medium having instructions stored thereon, wherein the instructions when executed by a processor implement a method of capacitive start regulation of air-to-ground integrated cooperative communication transport as claimed in any one of claims 1 to 8.

Description

Capacitor starting regulation and control method and system for air-ground integrated cooperative communication transmission Technical Field The application relates to the technical field of wireless communication, in particular to a capacitor starting regulation and control method and system for air-ground integrated cooperative communication transmission. Background The wireless communication between the high-altitude platform and the ground station is a key support technology in the fields of aviation monitoring, emergency rescue, remote sensing detection and the like, and long-distance real-time data transmission is realized by establishing a reliable communication link, so that the response speed and the system efficiency of task execution are ensured. In the process of establishing a communication link, the stable regulation and control of the capacitor starting circuit directly influences the rapid convergence of the signal amplitude-phase state, and is an important basis for realizing air-ground cooperative communication in a high dynamic environment. Currently, a capacitor starting method based on fixed parameter configuration or an empirical manual adjustment mode is adopted for establishing a communication link between an aerial platform and a ground station. In a specific implementation process, the existing method generally presets a charge-discharge time constant, a damping control coefficient and a transmitting power of a capacitor starting circuit, and directly applies the static configuration in a link starting stage. When the high-altitude platform is in a real scene of high-speed movement, frequent posture adjustment or large altitude change, the transmission distance between the high-altitude platform and the ground station can be changed remarkably in a short time, so that the line impedance value fluctuates severely. The existing fixed parameter configuration method cannot respond to the dynamic change in real time, the acquisition unit only completes the basic data acquisition function, the transmission distance and the impedance data are not fused into the parameter adjustment flow in depth, and the impedance mismatch causes the signal to generate multiple reflections in the transmission path, so that voltage and current waveforms are greatly oscillated. This oscillation is particularly apparent in the early stage of link start, and the signal amplitude that should rise to a steady state rapidly fluctuates repeatedly due to reflection superposition, and the phase relationship also generates cumulative delay, so that it is difficult for the receiving end to correctly demodulate the initial synchronization sequence in a short time. In order to suppress oscillation, some existing methods attempt to improve the signal-to-noise ratio by increasing the transmission power, but this tends to aggravate energy loss and thermal effects in the circuit, rather prolong the oscillation decay time, and even cause overshoot or false triggering of the circuit protection mechanism, resulting in link establishment failure. Other methods try to improve the matching state by manually adjusting the charge and discharge parameters or damping coefficients of the capacitor, but the adjustment process lacks dynamic modeling and quantitative analysis of a signal propagation path, the signal processing unit only carries out simple threshold judgment, a propagation model is not constructed to carry out phase compensation on signal amplitude attenuation, parameter correction is blind, oscillation sources are difficult to eliminate fundamentally, and the link establishment time is still at a higher level for a long time. In addition, the existing method lacks a real-time monitoring and closed-loop feedback mechanism for the oscillation state in the starting process, cannot actively intervene through damping pulse injection in the early period of oscillation occurrence, often needs multiple attempts to enter a stable working state, and even has the consequences that the link repeatedly tries to fail and reliable communication cannot be established under extreme conditions. In the oscillation suppression strategy, the prior art mostly adopts a single passive damping mode, such as increasing the consumption oscillation energy of a resistor, but the method can reduce the signal amplitude, influence the communication quality, can not adapt to the rapid change of impedance, and has limited damping effect. For quality evaluation after link establishment, the existing method usually only focuses on steady-state indexes, lacks dynamic feedback and parameter iterative optimization on quality indexes such as signal-to-noise ratio in the starting process, and cannot synchronously adjust damping parameters and transmitting power through a feedback loop when the quality indexes do not reach a threshold value, so that a capacitor starting circuit is difficult to quickly enter a steady working state, and the reliability and effici