Control method for automatic production of aerospace cable

Abstract

The invention relates to the technical field of cable manufacturing, solves the technical problem of measurement signal distortion caused by Bragg diffraction when molecules of an aerospace cable insulating layer are highly and orderly arranged, and particularly relates to a control method for aerospace cable automatic production, which comprises the following steps: step 1, in an extrusion molding process of the aerospace cable insulating layer, carrying out extrusion molding on the aerospace cable insulating layer; the frequency of incident terahertz waves is dynamically modulated to exceed a lattice matching band, the phase matching condition of Bragg diffraction is broken, and coherent scattering is converted into a random noise substrate. According to the invention, periodic coherent scattering is converted into separable random noise by changing the frequency and the wave vector direction of the terahertz wave in real time through a dynamic modulation technology of actively destroying the Bragg diffraction condition, so that the contradiction that measurement signals are more distorted due to neater molecular arrangement is fundamentally eradicated, and the measurement accuracy is improved. Therefore, when molecules of the insulation layer of the spaceflight cable are highly and orderly arranged, a real orientation signal can still be obtained, and the bottleneck of control closed loop collapse caused by diffraction interference in a traditional method is broken through.

Description

Technical Field

[0001] This invention relates to the field of cable manufacturing technology, and in particular to a control method for automated production of aerospace cables. Background Technology

[0002] Aerospace cables are a critical component in spacecraft, connecting various subsystems and transmitting commands, data, and power. Their quality directly impacts the reliability, safety, and even the success or failure of the entire mission under extreme environments. As spacecraft evolve towards higher reliability, longer lifespan, lighter weight, and higher integration, the performance requirements for aerospace cables are becoming increasingly stringent. Traditional production methods relying on manual experience are no longer sufficient to meet the extreme demands of modern aerospace engineering for consistency, precision, and efficiency in cable manufacturing. Therefore, developing and applying advanced automated production control methods to ultimately ensure that cable products meet the extreme requirements of aerospace missions for electrical, mechanical, and reliability performance has become an inevitable technological trend in the aerospace cable manufacturing field.

[0003] The consistent control of molecular orientation in aerospace cable insulation is a core guarantee for ensuring reliability in the extreme environments of deep space exploration. With the increasing power density and lightweight requirements of spacecraft, the insulation performance of traditional cables is approaching the physical limits of materials. To overcome this bottleneck, existing control methods achieve consistent molecular orientation of insulation materials through precise regulation of multiple synergistic effects during the extrusion process. These methods include: establishing a non-uniform temperature field in sections within the extrusion die, utilizing the thermal induction effect to induce directional stretching of polymer chains in the molten state; applying an axial pulsed electric field between the conductor and the die, utilizing the electric dipole moment response of polar molecules to enhance the alignment tendency of molecular chains along the conductor axis; using terahertz wave polarization technology to detect the molecular orientation angle distribution at the extrusion exit in real time; and comparing the measured orientation angle dispersion with the theoretical ideal value (perfectly axial alignment) to generate multi-field adjustment commands. If the dispersion is too large, the thermal gradient and electric field strength will be enhanced, thereby strengthening the driving force for molecular alignment. If the dispersion is too low, the electric field is weakened and the thermal field uniformity is adjusted to avoid the risk of brittleness.

[0004] Furthermore, by maintaining the physical correlation between the thermal, electrical, and fluid fields, it is ensured that the molecular orientation is stably solidified in the solid structure.

[0005] However, when the polymer chains within the insulation layer achieve a high degree of axial orientation, a quasicrystalline structure with long-range order spontaneously forms. This quasicrystalline structure forcibly alters the propagation path of electromagnetic waves, leading to diffraction interference. Specifically, the periodic lattice causes Bragg diffraction of the incident terahertz wave, resulting in coherent superposition of the scattered and probed light, distorting the polarization phase angle. Simultaneously, molecular thermal motion transmits displacement perturbations through the lattice, causing random phase fluctuations in the scattered light and obscuring the true orientation signal. This mutual exclusion creates an inverse relationship between control and measurement accuracy: the closer the molecular arrangement is to the ideal state, the less reliable the data acquired by the measurement system becomes. Ultimately, this leads to the collapse of the control closed loop, causing catastrophic failure of the aerospace cable under extreme conditions. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a control method for the automated production of aerospace cables. It solves the technical problem of measurement signal distortion caused by Bragg diffraction when the molecules in the insulation layer of aerospace cables are arranged in a highly ordered manner, and achieves the goal of quantum precision control of molecular orientation consistency under extreme working conditions.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a control method for automated production of aerospace cables, the method comprising the following steps: Step 1: During the extrusion molding process of the aerospace cable insulation layer, the frequency of the incident terahertz wave is dynamically modulated to make it exceed the lattice matching band, breaking the phase matching condition of Bragg diffraction and converting coherent scattering into a random noise substrate. Step 2: Upgrade the decoherent scattering signal to tensor space to reflect the anisotropic properties of the insulating material, embed lattice dynamics constraints to eliminate molecular thermal motion noise, construct a scattering tensor field that meets the requirements of electromagnetic field covariance, and ensure that the measurement results are consistent with the actual working environment of the cable. Step 3: Decouple the Bragg scattering components based on the coupling relationship between the scattering tensor field and the measurement signal, and reconstruct the spatial continuous distribution of the intrinsic orientation field of the insulating layer molecular chain to reflect the implementation effect of the insulating layer extrusion process; Step 4: Based on the gradient characteristics and thermodynamic correction terms of the intrinsic orientation field, generate the true value of the dispersion of pure structural disorder as the control benchmark for the molecular orientation consistency of the aerospace cable insulation layer.

[0008] Furthermore, the dynamically modulated incident terahertz wave frequency causes it to exceed the lattice matching band, including: Dynamic jump-modulation and exponentially decaying envelope shaping are applied to the initial operating frequency of the incident terahertz wave, i.e.: In the formula, For time-varying anti-diffraction carrier waves; This is the original fundamental frequency; This represents the maximum frequency offset. It is a symbolic function; For modulated carrier; where The modulation frequency; is the exponentially decaying envelope; where t is the time scale; The attenuation coefficient; Furthermore, a phase gradient perturbation field is introduced to counteract the diffraction carrier, which disrupts the consistency of the scattered light propagation direction, namely: In the formula, For the modulated wave vector; The reference wave vector is denoted by c; the speed of light in vacuum is denoted by c. The reference wave direction unit vector; The spatial coupling coefficient; For phase gradient perturbation field; Let v be the time-dependent correlation factor; where v is the imaginary unit. This is the angular frequency modulation parameter.

[0009] Furthermore, the conversion of coherent scattering into a random noise substrate includes: In the formula, It is the frequency domain response function; This is the Fourier transform phase kernel function; This is the spatiotemporal convolution operator; The incident terahertz electric field vector; The spectral energy distribution of the incoherent noise floor after Bragg decoherence is calculated based on the frequency domain response function, i.e.: In the formula, This is a decoherent scattering signal; This is the Fourier transform operator.

[0010] Furthermore, the step of converting coherent scattering into a random noise substrate further includes: By real-time monitoring of the spectral centroid of the frequency domain response function, the current minimum lattice spacing can be retrieved, i.e.: In the formula, This represents the current minimum lattice spacing within the material; To fix the angle of incidence; This is the temperature compensation factor; The centroid frequency; The initial wavelength; The wavelength of the centroid; The maximum frequency offset is dynamically adjusted based on the current minimum lattice spacing within the material, i.e.: In the formula, This is the updated maximum frequency offset. For dynamic safety margin.

[0011] Furthermore, the construction of the scattering tensor field that satisfies the requirement of electromagnetic field covariance includes: The decoherently scattered signal is converted into a gradient tensor. A three-dimensional Fourier transform is then performed on the gradient tensor to map the signal's oscillation characteristics to the phase distribution in the wave vector domain, i.e.: In the formula, The complex phase field in wave vector space; For plane wave propagation terms; The time second derivative of the affine signal; For the modulated wave vector; For three-dimensional spatial position; A wave vector filtering mechanism is established based on the Bragg condition to filter out non-Bracket scattering noise, i.e.: In the formula, For the Bragg allowed wave vector set; For the frequency allowable band range, where This is the lower limit of the allowed range; This represents the upper limit of the allowed range. The phase field is constrained using the projection operator of the phonon group velocity, thus eliminating the phase shift caused by thermal motion, i.e.: In the formula, Let be the gradient vector of the complex phase field; The phonon group velocity vector; Define a projection operator to force an arbitrary vector onto the phonon group velocity direction and output a dynamically pure phase field, i.e.: In the formula, To constrain the phase field; For the Prague filter; Coupled constraint phase field and gradient tensor, i.e.: In the formula, These are second-order tensor components; n and m are both spatial dimension indices; For the spatial components of the nth coordinate axis; Spatial components of the m-th coordinate axis; The second-order tensor components are restructured into a matrix to generate an antisymmetric nuclear tensor that characterizes the scattering curl. The equivalent electromagnetic source distribution is inverted based on the antisymmetric nuclear tensor, and a second-order scattering tensor field that satisfies the electromagnetic law is output.

[0012] Furthermore, the output, which satisfies the electromagnetic laws, comprises a second-order scattering tensor field layout, including: Based on the energy excitation source of the antisymmetric nuclear tensor reduced scattering field, namely: In the formula, It is an equivalent current source; For displacement current; where Permeability, It is the dielectric constant; For vector differential operators; K is the antisymmetric kernel tensor; The spatial distribution structure of the original energy source driving the scattered field is based on the equivalent current source. In the formula, For the Laplace operator; For the scattering source density field; By applying relativistic covariance gauge conditions to the scattering source density field, redundant components violating the Lorentz gauge are removed by the gauge scalar field, and a scattering tensor field with spacetime invariance is output. In the formula, It is a second-order scattering tensor field; To standardize scalar fields.

[0013] Furthermore, the spatially continuous distribution of the intrinsic orientation field of the reconstructed insulating layer molecular chains includes: Separating the scattered component from the measurement signal, i.e.: In the formula, The complete electric field polarization state measurement value at a certain point in space; Here is the scattering coupling matrix; This is the axial deflection angle of the molecular chain; For orientation response operators; This is quantum fluctuation noise; The descattering orientation field is calculated using the pseudo-inverse operator of the orientation response operator, i.e.: In the formula, For descattering orientation field; A pseudo-inverse operator for orientation response operators; It is the Riemannian manifold norm; Based on the descattering orientation field, the orientation angle values ​​of discrete grid points are reconstructed into a continuous field function, i.e.: In the formula, The reconstructed intrinsic orientation field; U is the number of discrete points; For local curvature weights; These are radial basis functions; Let be the coordinates of the i-th discrete grid point.

[0014] Furthermore, the scattering coupling matrix is ​​used to quantify the polarization conversion relationship between incident and scattered radiation, i.e.: In the formula, matrix elements The coupling efficiency of a specific scattering path, where n and m are indices of the polarization direction; q is the dielectric tensor function; q is the scattering vector.

[0015] Furthermore, the orientation response operator is used to map the molecular orientation angle to a linear transformation of the polarization response, i.e.: In the formula, It represents the molecular electronic polarizability; These are parallel polarization components; These are orthogonal polarization components; The polarization angle of the incident terahertz wave.

[0016] Furthermore, the step of generating the discrete truth value of the pure structural disorder degree includes: The instantaneous angular deviation rate of change is calculated based on the reconstructed intrinsic orientation field, i.e.: In the formula, Three-dimensional spatial coordinates The scalar field representing the rate of change of instantaneous angular deviation at a given point; Spatial gradient vector of intrinsic orientation field; This is the unit vector along the conductor's axis. The scalar field integral of the instantaneous angular deviation rate of change is the orientation disorder energy, i.e.: In the formula, E is the orientation disorder energy of the entire insulating layer; V is the physical volume space of the insulating layer. The dimensionless reference quantity used to eliminate geometric interference is generated based on the energy of the overall orientation disorder of the insulating layer, namely: In the formula, This represents the original variance of the dispersion. A Boltzmann suppression factor is introduced into the original variance of dispersion to remove spurious signals from molecular thermal motion, i.e.: In the formula, This is the true value of the dispersion after thermal correction; This is the molecular rotational stiffness coefficient; This is the thermally induced mean square angular displacement. is Boltzmann's constant; T is the absolute temperature.

[0017] By employing the above technical solution, the present invention provides a control method for automated production of aerospace cables, which has at least the following beneficial effects: 1. This invention utilizes dynamic modulation technology to actively disrupt Bragg diffraction conditions, changing the terahertz wave frequency and wave vector direction in real time during the extrusion molding process of aerospace cable insulation. This transforms periodic coherent scattering into separable random noise, fundamentally eliminating the contradiction that more orderly molecular arrangement leads to greater measurement signal distortion, thus providing a stable data source for high-precision control. Furthermore, even when the molecules in the aerospace cable insulation layer are highly ordered, it can still acquire true orientation signals, overcoming the bottleneck of control loop collapse caused by diffraction interference in traditional methods.

[0018] 2. This invention achieves physical separation of molecular thermal motion noise and Bragg scattering eigenresponse during aerospace cable production by upscaling the scattering signal to tensor space and embedding phonon group velocity constraints and electromagnetic covariance specifications. It generates a scattering field quantization model that strictly conforms to physical laws, providing a noise-free mathematical benchmark for reconstructing the molecular orientation of aerospace cable insulation layers, improving production control precision to the nanometer level, and meeting the stringent requirements of aerospace cables for microstructure uniformity.

[0019] 3. This invention establishes a dual-field coupling equation (scattering field + orientation field) and uses the Riemann manifold optimization algorithm to inversely decouple the real molecular orientation in the discrete grid, effectively eliminating the influence of photon-phonon coupling distortion in the aerospace cable production process; it realizes continuous field reconstruction of the spatial orientation of the molecular chain in the insulation layer, accurately locates the lattice defect region, provides a microscopic topological map for the quality control of aerospace cable production, and enables the production line to adjust process parameters in a targeted manner to eliminate defects.

[0020] 4. This invention effectively removes false signals caused by temperature fluctuations during the production of aerospace cables through the synergistic effect of deviation energy integral and Boltzmann thermal suppression factor, generating true discrete values ​​that are independent of material size and only related to structure. It establishes an absolute benchmark for quality control across production batches and operating conditions, ensuring a high degree of consistency in the performance of aerospace cable products from different batches and meeting the extreme requirements of aerospace engineering for cable reliability. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is an experimental flowchart of the control method in an embodiment of the present invention. Detailed Implementation

[0022] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. This will allow for a full understanding of how the present application uses technical means to solve technical problems and achieve technical effects, and to facilitate its implementation.

[0023] Bragg diffraction requires the incident wave to satisfy a strict phase-matching condition with the crystal lattice structure, namely: In the formula, 'a' represents the order of the diffracted beam, which is a positive integer and corresponds to coherent enhancement modes with different path differences. The higher the order, the weaker the energy. The incident wave wavelength, i.e., the vacuum wavelength of the incident terahertz electromagnetic wave, is the core physical quantity that determines whether diffraction can occur, and it must satisfy... d is the lattice spacing, which represents the perpendicular distance between adjacent parallel crystal planes and reflects the period length of the corresponding molecular chain quasicrystalline structure in the insulating layer; The grazing angle, which is the angle between the incident wave and the crystal plane, is a key parameter for controlling the diffraction direction. Changing the grazing angle during measurement allows scanning information from different crystal planes.

[0024] When electromagnetic waves of a specific wavelength move at an angle At incidence, the optical path difference between the reflected light from adjacent crystal planes is When the optical path difference is an integer multiple of the wavelength, strong coherent scattering occurs, forming diffraction peaks. This coherent scattering mixes with the original probe signal, causing phase shift and fringe distortion in the polarization angle measurement.

[0025] This embodiment proposes a control method for automated production of aerospace cables. Compared to traditional aerospace cable production, where the highly ordered arrangement of polymer chains in the insulation layer spontaneously forms a quasicrystalline structure, triggering Bragg diffraction of the terahertz detection wave and causing measurement signal distortion, this method dynamically modulates the terahertz wave to disrupt the diffraction conditions, converting coherent scattering into separable noise. It then constructs a phonon-constrained electromagnetic covariance tensor field to physically eliminate thermal motion interference. Furthermore, through dual-field decoupling and Riemannian manifold reconstruction, it accurately restores the continuous spatial orientation of the insulation layer's molecular chains. Finally, it defines the Boltzmann-corrected true value of the discreteness, generating an absolute quality benchmark with only structural disorder. This achieves nanometer-level measurement accuracy even in a highly ordered molecular state, enabling aerospace cables to overcome extreme reliability bottlenecks and meet the extreme requirements of cable insulation performance for missions such as deep space exploration. Figure 1 As shown, the method includes the following steps: Step 1: During the extrusion molding process of the aerospace cable insulation layer, the terahertz wave frequency is dynamically modulated to exceed the lattice matching band, actively breaking the physical conditions of Bragg diffraction. That is, when the frequency conversion rate is greater than the lattice relaxation rate, the crystal cannot establish stable diffraction, thus transforming coherent scattering into a random noise substrate. Specifically: By applying dynamic jump-modulation and exponentially decaying envelope shaping to the initial operating frequency of the incident terahertz wave, the phase-matching condition of Bragg diffraction is completely destroyed, thus eliminating coherent scattering interference. In the formula, The time-varying anti-diffraction carrier, i.e. the actual operating frequency of the incident terahertz wave at time t, is a sequence of non-periodic bidirectional frequency jump pulses superimposed on the original fundamental frequency. It is used to disrupt the steady-state phase matching between the electromagnetic wave and the crystal lattice, thereby disintegrating the coherence condition of Bragg diffraction and degrading the systematic scattering interference into separable noise. The original fundamental frequency, i.e. the initial operating frequency of the incident terahertz wave, is directly determined by the physical parameters of the terahertz source and is used to maintain the basic detection function and ensure the photoelectric response to the material. The maximum frequency offset reflects the extreme value of the dynamic frequency shift. It is used to define the frequency jump range, ensuring coverage of the Bragg condition violation region and establishing superthreshold modulation beyond the lattice matching band. It is calculated based on crystallographic formulas, namely: In the formula, is the minimum interplanar spacing within the material; c is the speed of light in vacuum, which is the limiting speed at which electromagnetic waves propagate in free space; This is a sign function used to reverse the frequency polarity; To modulate the carrier, a periodic frequency switching reference is generated; whereby This is the modulation frequency, used to control the frequency switching rate; The exponentially decaying envelope is used to constrain the effective duration; t is the time scale. The attenuation coefficient reflects the rate of energy decay, i.e.: In the formula, The lattice relaxation time represents the characteristic timescale of energy absorption / release in a lattice system.

[0026] By forcing the frequency Interval jumping, disrupting wavelength Stable matching with the lattice spacing, while ensuring that the pulse energy is concentrated in the Bragg-damping sensitive region; the instantaneous wavelength of the generated anti-diffraction carrier. The duration requirement of the Prague condition cannot be met.

[0027] Furthermore, by introducing a phase gradient perturbation field to counteract the diffraction carrier and disrupt the consistency of the scattered light propagation direction, directional diffraction is transformed into random diffuse scattering. This causes the wave vector generation to be temporally deflected, completely dismantling the coherent superposition basis of the Bragg interference; that is: In the formula, The modulated wave vector describes the propagation direction and phase change of the electromagnetic wave in the medium. It serves as the reference wave vector, used to maintain the main propagation direction of the original terahertz wave; It is the unit vector of the reference wave direction, used to lock the original detection direction of the conductor axis; The spatial coupling coefficient is used to adjust the disturbance intensity and avoid excessive damage to signal integrity. The phase gradient perturbation field is used to introduce non-uniform phase abrupt changes in three-dimensional space. It is generated by a piezoelectric array, i.e.: In the formula, Representing three-dimensional spatial coordinates The total phase offset at a given point is used to define the global continuous phase field; N is the total number of disturbance sources, which is determined by the number of piezoelectric array elements. is the amplitude coefficient of the j-th disturbance source, used to control the phase modulation intensity, and is adjusted in real time based on the voltage drive circuit; j is the search index; It is a Gaussian spatial decay kernel, which characterizes the local influence range of a single source; The three-dimensional spatial coordinates of the j-th disturbance source reflect the spatial anchor point of the disturbance field; Spatial location relative to the source point location The Euclidean distance reflects the benchmark for spatial attenuation; The characteristic width of the Gaussian kernel is used to control the radius of the perturbation effect; The time decorrelation factor is used to cause the disturbance to switch periodically at a frequency, thus disrupting temporal coherence; v is the imaginary unit. , used to construct rotation operators; This is an angular frequency modulation parameter used to control the phase rotation speed; its calculation formula is: By reconstructing the spatial propagation characteristics through the wave equation, the modulated wave vector output randomizes the scattered light in three-dimensional space, thus blocking the spatial coherent superposition of diffraction fringes.

[0028] By quantizing the temporal interaction between the wave vector abrupt change and the incident field, a frequency domain response function is generated to accurately characterize the noise floor features after Bragg diffraction decoherence, i.e.: In the formula, It is the frequency domain response function, which characterizes the complete response of wave vector dynamic modulation in the frequency domain. Its squared modulus directly quantifies the frequency domain energy distribution of the incoherent noise substrate after the Bragg coherence is destroyed, and becomes the core physical criterion for subsequent scattering field separation. It is a Fourier transform phase kernel function used to perform time-domain to frequency-domain mapping and extract the resonance response features of the modulation process; The partial derivative of the modulated wave vector with respect to time quantifies the intensity of the dynamic change of the wave vector, i.e., the modulation rate of the pulse mutation spectrum (the degree of change in the direction / mode of the wave vector per unit time). This is the spatiotemporal convolution operator; The incident terahertz electric field vector characterizes the time-domain distribution of the original probed electromagnetic field; It is a full-time-domain integral operator used to cover the entire process from modulation initiation to decay termination, ensuring energy conservation.

[0029] The spectral energy distribution of the incoherent noise substrate after Bragg decoherence is calculated based on the frequency domain response function, providing a reference signal for scattering field separation, i.e.: In the formula, For decoherent scattered signals, the energy intensity of incoherent noise in the frequency domain is directly quantized; It is a Fourier transform operator used to map a time-domain coupled field to the frequency domain.

[0030] Step one involves dynamically changing the frequency of the incident terahertz wave to directionally disrupt the phase-matching condition of Bragg diffraction, converting coherent scattering energy into an incoherent noise substrate, and eliminating the interference of periodic diffraction fringes on the target polarization signal.

[0031] Step Two: The decoherent scattering signal is elevated to tensor space to reveal the curl characteristics and energy distribution of the scattering field. Lattice dynamics constraints are embedded to eliminate molecular thermal noise, constructing a covariant field description that satisfies the fundamental laws of electromagnetic fields. This provides a quantified interference benchmark for subsequent intrinsic orientation field decoupling, transforming scattering interference from an uncontrollable phenomenon into a separable physical entity field. Specifically: By transforming the spatiotemporal scattering signal into a gradient affine, the implicit spatial correlation and temporal evolution of unsteady scattering are explicitly expressed. First, the joint coordinates of position and time in the decoherent scattering signal are defined. Three-dimensional spatial coordinates The spatial distribution of the decoherent scattering signal is described; the time coordinate characterizes the dynamic evolution of the decoherent scattering signal; and then the decoherent scattering signal is transformed from a scalar point sequence into a four-dimensional continuous manifold, establishing a spatiotemporal topological framework.

[0032] The gradient tensor is generated based on the joint coordinates of position and time, i.e.: In the formula, The gradient tensor of the decoherent scattering signal is used to make the spatiotemporal variation characteristics of the decoherent scattering signal explicit, that is, the signal affine quantity with a differential structure. The rate of change of the decoherent scattered signal in the x-axis direction was used to measure the energy transfer characteristics of the decoherent scattered signal along the cable axis. The spatial variation rate of the decoherent scattering signal in the y-axis direction characterizes the inhomogeneity of the insulating layer in the circumferential direction, and its amplitude reflects the scattering anisotropy caused by lattice defects. The spatial derivative of the decoherent scattering signal in the z-axis direction reveals the layered structure characteristics of the material along the radial direction of the cable, and its extreme point corresponds to the Bragg diffraction abrupt change region at the interface between the conductor and the insulation layer. The transient rate of change of the decoherent scattering signal with time t reflects the dynamic scattering response caused by lattice vibrations.

[0033] A three-dimensional Fourier transform is performed on the affine signal to convert the signal's oscillation characteristics into a phase distribution in the wave vector domain, establishing a correlation with the crystal structure; that is: In the formula, It is the complex phase field in wave vector space, used to establish the direct correlation between signal oscillation and the reciprocal space of the lattice; This is a plane wave propagation term used to convert three-dimensional spatial coordinates. Mapped to phase delay information; It is the second time derivative of the affine signal, used to enhance the acceleration characteristics of the signal and filter thermal drift noise; It represents the dot product operation of the modulated wave vector and the three-dimensional spatial coordinates, and quantifies the momentum transfer intensity between the scattered wave and the lattice. It is a three-dimensional volume integral, representing the collective interference effect of all points in aggregate space.

[0034] Based on Bragg's diffraction law, a wave vector screening mechanism is established to retain only specific frequency ranges that conform to Bragg diffraction, that is, to limit the wave vector in phase space to satisfy: In the formula, The reciprocal lattice vector is the reciprocal space expression of the lattice periodicity, determined by the orientation spacing of the polymer chains in the insulating layer.

[0035] When the projection difference of the modulated wave vector reciprocal lattice vector satisfies When the phase is an integer multiple, it indicates that the phase of the incident wave and the phase of the wave reflected from the crystal plane are synchronously enhanced, leading to constructive interference; otherwise, destructive interference occurs (i.e., no diffraction signal). Then, the set of wave vectors allowed to pass through is determined according to the lattice arrangement rules, i.e.: In the formula, The Bragg allowed set of wave vectors contains valid wave vectors that satisfy the diffraction condition; For the frequency allowable band range, where The lower limit of the allowable range is determined by the minimum interplanar spacing within the material; The upper limit of the allowable range is determined by the lattice thermal expansion limit.

[0036] By forcing signal analysis to follow quantized scattering conditions, noise interference from non-Bracket scattering is eliminated, ensuring that the output results strictly conform to the laws of crystal diffraction.

[0037] The gradient direction of the phase change must be detected, requiring the phase change to be perpendicular to the phonon energy transfer direction to eliminate random phase shifts caused by molecular thermal motion. Furthermore, the energy transfer path is automatically calculated using inherent material properties to suppress signal distortion caused by lattice thermal vibrations, ensuring that the phase change direction is consistent with the lattice energy transfer direction. That is: In the formula, The gradient vector of the complex phase field describes the rate of change and direction of the scattered phase in space, characterizing the spatial distortion of the Bragg interference fringes. It is calculated based on the complex phase distribution in wave vector space, i.e.: In the formula, It is the partial derivative of the phase field in the x-axis direction, reflecting the rate of change of the phase along the crystal axis; The partial derivative of the phase field along the y-axis reflects the rate of change of the phase along the crystal plane normal. The partial derivative of the phase field along the z-axis reflects the rate of change of the phase along the stacking direction; The phonon group velocity vector represents the direction and rate of propagation of lattice vibrational energy in the material, and is used to define the intrinsic energy transfer path of the material; the calculation formula is: In the formula, For the gradient operator in wave vector space; The lattice dispersion relation describes the functional relationship between the lattice vibration frequency and the wave vector.

[0038] Define a projection operator for forcibly projecting an arbitrary vector onto the phonon group velocity direction, i.e.: In the formula, Operator symbols; Let be any input vector to be processed, i.e., the gradient vector of the phase field.

[0039] The initial phase field is filtered by Bragg conditional wave vector filtering, and then projected onto the phonon group velocity direction to finally output a dynamically pure phase field, i.e.: In the formula, The computable quantity for constraining the phase field while simultaneously satisfying Bragg diffraction and phonon group velocity constraints; A Bragg filter is a wave vector filter constructed from Dirac functions, which selectively transmits signals while satisfying the Bragg condition. The amount; The pre-purification field, i.e. the truncated phase field of the Bragg legal region, is used to filter out inelastic scattering components and retain the main lattice diffraction signal.

[0040] By performing a partial differential expansion on the coupling terms of the constrained phase field and the gradient tensor, the rotational properties of the scattered field are explicitly expressed as tensor components, thus constructing the core mathematical framework characterizing the curl of Bragg scattering. In the formula, The rotation intensity of the n-dimensional scattering flow in m dimensions was quantized for the final generated second-order tensor components; n and m are spatial dimension indices, with values ​​ranging from {1, 2, 3}; where 1 corresponds to the x-axis, 2 to the y-axis, and 3 to the z-axis; n is used to specify the direction of scattering energy transfer being analyzed; m is used to specify the direction of gradient detection. The spatial component of the nth coordinate axis is the spatial coordinate reference for the direction of energy transfer during scattering. The spatial component of the m-th coordinate axis is the spatial coordinate reference for the curl detection direction; By performing matrix-structured recombination of the second-order tensor components, the rotational eigencomponents in three-dimensional space are organized into a standard antisymmetric form, resulting in an antisymmetric kernel tensor that reflects the rotational properties of Bragg scattering and characterizes the eigencury of the scattered field. In the formula, K is the antisymmetric kernel tensor; This represents the rotational intensity of the scattered energy flow along the x-axis along the y-axis. This represents the rotational intensity of the scattered energy flow along the x-axis along the z-axis. This represents the rotational intensity of the scattered energy flow along the y-axis along the z-axis.

[0041] Based on the antisymmetric nuclear tensor inversion equivalent electromagnetic source distribution, the energy excitation source of the scattered field is reconstructed, namely: In the formula, It is the equivalent current source, that is, the current density mapped to the real physical space; The displacement current term is used to construct the equivalent current excited by the time-varying curl field; where Permeability, is the dielectric constant, and both are intrinsic electromagnetic properties of insulating materials; For vector differential operators, it means performing differential operations in a multivariable function space.

[0042] Solving the second-order differential equation of the equivalent current source in the dielectric environment accurately reconstructs the spatial distribution structure of the original energy source driving the scattering field, i.e.: In the formula, The Laplace operator is used to quantify the diffusion intensity of the potential field, which is proportional to the curvature of the field distribution. This is the scattering source density field, used to reveal the origin, direction, and intensity distribution of Bragg scattering energy.

[0043] By applying relativistic covariance gauge conditions to the scattering source density field, the tensor field is ensured to satisfy fundamental physical laws, thus outputting a scattering tensor field with spacetime invariance; that is: In the formula, The potential energy represents the time component of the scattering source density field and describes the evolution of the scattering field over time.

[0044] By removing redundant components that violate the Lorentz gauge from the scattering source density field, the final output tensor field strictly follows the fundamental laws of electromagnetic fields and possesses spacetime transformation invariance, i.e.: In the formula, It is a second-order scattering tensor field, and its components are... It represents the coupling strength of the scattered field in the m-dimensional direction at position n; as the input of the known interference field into the intrinsic field decoupling equation, it provides a spatial distribution template to identify the peak region of the scattering intensity, and the differential structure reveals the location of lattice defects and the direction of molecular misalignment; To normalize a scalar field, a normalization transformation term is generated through its gradient to eliminate non-physical degrees of freedom, i.e.: This process transforms decoherent scattering signals into a mathematical entity field that strictly satisfies the laws of electromagnetics—a second-order scattering tensor field—allowing for a complete quantitative description of the previously unanalyzable Bragg scattering mechanism. Furthermore, through lattice dynamics constraints and gauge regularization, molecular thermal motion noise and intrinsic scattering responses are thoroughly separated, eliminating the influence of random phase perturbations on the signal. The tensor components in the second-order scattering tensor field precisely reveal the energy coupling intensity distribution and polarization rotation characteristics of the scattered field in three-dimensional space, locating lattice defect regions (diagonal elements) and molecular misalignment directions (antisymmetric elements). Ultimately, this transforms uncontrollable diffraction effects into a physically computable field with differential geometry, establishing an irreversible mathematical benchmark for molecular-level precision measurements.

[0045] Step 3: Completely separate the scattered components from the measurement signal to reconstruct the spatially continuous true molecular orientation angle distribution field, i.e., the intrinsic orientation field; thereby eliminating the angular distortion and phase shift caused by photon-phonon coupling, generating an intrinsic topological description of the microstructure inside the insulating layer, providing an interference-free spatial differential information field for discrete-time truth value calculation. Specifically: The discrete measurement components are fused into a continuous vector in three-dimensional space, i.e.: In the formula, The complete electric field polarization state measurement value at a certain point in space; This represents the polarization field intensity component received by the detector along the n-axis (n=x, y, z).

[0046] Transform the second-order scattering tensor field into a tensor product form, i.e.: .

[0047] In the formula, and All are unit basis vectors in the Cartesian coordinate system; The product of unit basis vectors represents the space of coupling between the n-axis and m-axis directions.

[0048] The Bragg scattering process is explicitly quantized into a polarization state transformation map, thus mapping the second-order scattering tensor field into an observable signal, i.e.: In the formula, Let represent the electric field component generated by Bragg scattering, and let represent the polarization signal intensity contributed by Bragg scattering. Here is the scattering coupling matrix, used to quantify the polarization conversion relationship between incident and scattered radiation, i.e.: In the formula, matrix elements The coupling efficiency of a specific scattering path (n→m), where n and m are indices of the polarization direction; q is the dielectric tensor function, which reflects the material's polarization response to electromagnetic waves; q is the scattering vector, which determines the Bragg diffraction condition.

[0049] Define a deterministic relationship between the molecular alignment orientation and the polarization rotation of the measurement signal, namely: In the formula, The intrinsic electric field component generated by molecular orientation characterizes the material's true polarization response. The axial deflection angle of the molecular chain is the intrinsic physical quantity to be solved. This is an orientation response operator used for a linear transformation that maps molecular orientation angles to polarization responses, i.e.: In the formula, The molecular electronic polarizability is an intrinsic material parameter that determines the signal amplitude. These are parallel polarization components; These are orthogonal polarization components; The polarization angle of the incident terahertz wave.

[0050] Since the axial deflection angle of the molecular chain is a spatially continuous field, we need to solve it on a discretized grid. Therefore, based on the complete electric field polarization state measurement at a point in space and the intrinsic electric field components generated by molecular orientation, a coupling equation with separable physical contributions is established to decouple the confounding factors of the measurement signal, i.e.: In the formula, This refers to quantum fluctuation noise, which includes random noise terms such as thermal noise and quantum noise.

[0051] The descattering orientation field is calculated using the pseudo-inverse operator of the orientation response operator, i.e.: In the formula, The descattered orientation field reflects the intrinsic orientation angle values ​​at spatially discrete grid points, i.e., the molecular chain axial orientation angles after removing the influence of scattering components. It represents coordinates in three-dimensional space. The actual deflection angle of the molecular chain relative to the axial direction of the cable conductor; It is a pseudo-inverse operator for the orientation response operator, used to directly extract the theoretical orientation component from the measurement signal; is the Riemannian manifold norm. Since the axial deflection angle of the molecular chain in reality is a field defined on the molecular orientation manifold (a special Riemannian space), we adopt the geometric norm on this manifold to preserve the topological properties of molecular orientation (e.g., the orientation of the molecular chain is periodic, and 0° and 360° are equivalent); M represents the molecular orientation manifold.

[0052] Based on the descattering orientation field, the orientation angle values ​​of discrete grid points are reconstructed into a continuous field function, i.e.: In the formula, The reconstructed intrinsic orientation field represents the three-dimensional spatial coordinates. The actual deflection angle of the molecular chain at that point; U is the number of discrete points; The local curvature weight reflects the intensity of the field strength influence of the i-th discrete point on the surrounding area; Radial basis functions are quantitatively described as decay functions of spatial correlation, used to control the balance between smoothness and resolution of the reconstructed field; Let be the coordinates of the i-th discrete grid point.

[0053] The reconstructed intrinsic orientation field has spatial continuity, fully describes the molecular chain orientation angle at every location within the entire insulating layer, and has completely removed the influence of Bragg scattering.

[0054] Step 3 involves constructing a dual-field coupling model and optimizing the Riemannian manifold to completely eliminate phase distortion caused by Bragg scattering, accurately reconstruct the spatially continuous intrinsic molecular orientation field, and establish a pollution-free truth base for the quantification of insulation quality.

[0055] Step Four: Transform the spatial orientation field into a theoretically complete discrete truth value, eliminating the coupling interference of environmental factors on the measurement results, and providing an absolute reference parameter for molecular-level control. This further realizes the quantized mapping from microscopic fluctuations to macroscopic parameters, upgrading discrete measurement from empirical statistics to truth value transmission constrained by physical laws, laying the ultimate benchmark for molecular-level control of aerospace cables. Specifically: The gradient projection of the field function along the conductor axis (z-direction) is calculated based on the reconstructed intrinsic orientation field to capture the instantaneous deviation of the molecular chain from the ideal axis: that is: In the formula, Three-dimensional spatial coordinates The instantaneous angular deviation rate of change at a given point is scalar field, which quantifies the angular acceleration of the molecular chain deviating from the axis per second; The spatial gradient vector of the intrinsic orientation field reflects the spatial rate of change and direction of the molecular chain arrangement direction inside the insulating layer; It is a unit vector along the conductor's axis, used to provide a reference frame for angle measurements.

[0056] By constructing the deviation energy density based on the scalar field of the instantaneous angle deviation change rate and integrating it over the entire domain, the microscopic angle fluctuations are transformed into macroscopic statistics, namely: In the formula, E is the orientation disorder energy of the entire insulating layer, an intrinsic physical quantity characterizing the stability of the material; V is the physical volume space of the insulating layer.

[0057] A dimensionless reference quantity is generated based on the orientation disorder energy of the entire insulating layer to eliminate geometric interference, i.e.: In the formula, To eliminate the original variance of dispersion caused by geometric dimensions affecting disorder, a material-independent disorder evaluation standard was used to achieve unified quality control across product specifications.

[0058] A Boltzmann suppression factor is introduced into the original variance of dispersion to remove spurious signals from molecular thermal motion, i.e.: In the formula, This is the true value of the discreteness after thermal correction, representing the degree of pure structural disorder; is the molecular rotational stiffness coefficient, which describes the elastic ability of a molecular chain to resist angular displacement; This is the thermally induced mean square angular displacement, used to statistically measure the amplitude of random angular fluctuations caused by thermal motion. is Boltzmann's constant; T is the absolute temperature.

[0059] Based on the principles of statistical thermodynamics, spurious signals caused by temperature are removed, and the dispersion that is only related to structure is extracted. This yields true dispersion data that completely removes the effects of Bragg scattering and thermal perturbation and purely reflects the defects in molecular arrangement.

[0060] It should be noted that the effectiveness of applying dynamic jump-modulation to the initial operating frequency of the incident terahertz wave in step one is highly dependent on the maximum frequency deviation, modulation frequency, and attenuation coefficient. These three physical quantities directly depend on the microscopic state of the material (lattice, phonons) and are easily affected by temperature fluctuations, batch differences, or aging during production. If the minimum lattice spacing within the material drifts (e.g., due to lattice expansion caused by temperature rise), the maximum frequency deviation may not satisfy the Bragg violation condition, causing Bragg diffraction to reappear and ultimately leading to the collapse of the control loop. Therefore, by real-time monitoring of the spectral centroid of the frequency domain response function and inverting the current minimum lattice spacing used to dynamically adjust the maximum frequency deviation, the disruption of the dynamic modulation condition caused by the drift of the minimum lattice spacing within the material can be eliminated, ensuring that Bragg diffraction is always effectively suppressed, guaranteeing the absolute reliability of molecular orientation measurements, and thus maintaining the stability of the closed-loop control in the production of aerospace cable insulation layers. Specifically: The centroid frequency, which reflects the change in the minimum lattice spacing within the material, is calculated based on the frequency domain response function. In the formula, The centroid frequency is the equilibrium point of the spectral energy distribution. The centroid frequency will shift when the minimum lattice spacing drifts, and it serves as a core monitoring indicator. The lower limit of the operating frequency band reflects the lowest frequency at which terahertz waves can be effectively detected, and is determined by the physical characteristics of the light source; This represents the upper limit of the operating frequency band, reflecting the highest frequency at which terahertz waves can be effectively detected, and is determined by the detector's performance.

[0061] When the minimum interplanar spacing increases, the Bragg condition shifts to lower frequencies, i.e., the centroid frequency decreases; conversely, when the minimum interplanar spacing decreases, the Bragg condition shifts to higher frequencies, i.e., the centroid frequency increases. This realizes the transformation of the nanoscale minimum interplanar spacing drift, which is difficult to measure directly, into an observable frequency domain characteristic.

[0062] The current value of the minimum lattice spacing within the inversion model material is established based on Bragg's law, i.e.: In the formula, The target physical quantity output by the inversion is the current minimum lattice spacing within the material, used to dynamically update the modulation parameters; To fix the incident angle, i.e. the geometric angle between the terahertz wave and the crystal plane, it is determined by the detector installation position; This is a temperature compensation factor used to eliminate the thermal expansion effect, namely: in, It is the coefficient of thermal expansion of the material; This refers to the initial temperature of the material under standard operating conditions. The current ambient temperature is obtained in real time through a temperature sensor and serves as the input variable for dynamic compensation.

[0063] The initial wavelength is calculated from the original fundamental frequency, i.e.: The wavelength of the centroid is calculated from the centroid frequency, i.e.: By co-inverting the centroid frequency offset and the temperature compensation factor, the current minimum lattice spacing can be measured online without damage, providing a real-time physical reference for dynamic modulation parameters.

[0064] The maximum frequency offset is recalculated in real time based on the current minimum lattice spacing and dynamic safety margin within the material, i.e.: In the formula, The updated maximum frequency offset is used to replace the original maximum frequency offset in step one, which ensures that the dynamic modulation always satisfies the Bragg violation condition. This is a dynamic safety margin used to reserve buffer bandwidth to cope with sudden drift.

[0065] Establish a margin iterative optimization equation to eliminate overly conservative design and achieve optimal energy modulation, namely: In the formula, This is the safety margin for the h-th iteration; The learning rate; This is the sign function, used to control the direction of the output gradient: it returns +1 when the gradient is positive and -1 when it is negative; The gradient of the total residual diffraction energy of the objective function with respect to the safety margin is given, and the effect of adjusting the quantization margin on the residual diffraction energy is calculated. When the dynamic safety margin is too large, it indicates that the dynamic safety margin should be reduced to save energy; when When the time is insufficient, it indicates that the dynamic safety margin should be increased to ensure safety; furthermore, energy consumption should be minimized while ensuring the violation of the Bragg condition; J is the total residual diffraction energy, used to evaluate the modulation effect, i.e.: Those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing related hardware. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Moreover, this application can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0066] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. Since the above embodiments are substantially similar to the method embodiments, their descriptions are relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0067] The above embodiments provide a detailed description of the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A control method for automated production of aerospace cables, characterized in that, Includes the following steps: Step 1: During the extrusion molding process of the aerospace cable insulation layer, the frequency of the incident terahertz wave is dynamically modulated to make it exceed the lattice matching band, breaking the phase matching condition of Bragg diffraction and converting coherent scattering into a random noise substrate. Step 2: Upgrade the decoherent scattering signal to tensor space to reflect the anisotropic properties of the insulating material, embed lattice dynamics constraints to eliminate molecular thermal motion noise, construct a scattering tensor field that meets the requirements of electromagnetic field covariance, and ensure that the measurement results are consistent with the actual working environment of the cable. Step 3: Decouple the Bragg scattering components based on the coupling relationship between the scattering tensor field and the measurement signal, and reconstruct the spatial continuous distribution of the intrinsic orientation field of the insulating layer molecular chain to reflect the implementation effect of the insulating layer extrusion process; Step 4: Based on the gradient characteristics and thermodynamic correction terms of the intrinsic orientation field, generate the true value of the dispersion of pure structural disorder as the control benchmark for the molecular orientation consistency of the aerospace cable insulation layer.

2. The control method for automated production of aerospace cables according to claim 1, characterized in that, The dynamically modulated incident terahertz wave frequency causes it to exceed the lattice matching band, including: Dynamic jump-modulation and exponentially decaying envelope shaping are applied to the initial operating frequency of the incident terahertz wave, i.e.: ； In the formula, For time-varying anti-diffraction carrier waves; This is the original fundamental frequency; This represents the maximum frequency offset. It is a symbolic function; For modulated carrier; where The modulation frequency; is the exponentially decaying envelope; where t is the time scale; The attenuation coefficient; Furthermore, a phase gradient perturbation field is introduced to counteract the diffraction carrier, which disrupts the consistency of the scattered light propagation direction, namely: ； In the formula, For the modulated wave vector; The reference wave vector is denoted by c; the speed of light in vacuum is denoted by c. The reference wave direction unit vector; The spatial coupling coefficient; For phase gradient perturbation field; Let v be the time-dependent correlation factor; where v is the imaginary unit. This is the angular frequency modulation parameter.

3. The control method for automated production of aerospace cables according to claim 2, characterized in that, The process of converting coherent scattering into a random noise substrate includes: ； In the formula, It is the frequency domain response function; This is the Fourier transform phase kernel function; This is the spatiotemporal convolution operator; The incident terahertz electric field vector; The spectral energy distribution of the incoherent noise floor after Bragg decoherence is calculated based on the frequency domain response function, i.e.: ； In the formula, This is a decoherent scattering signal; This is the Fourier transform operator.

4. The control method for automated production of aerospace cables according to claim 2, characterized in that, The method of converting coherent scattering into a random noise substrate further includes: By real-time monitoring of the spectral centroid of the frequency domain response function, the current minimum lattice spacing can be retrieved, i.e.: ； In the formula, This represents the current minimum lattice spacing within the material; To fix the angle of incidence; This is the temperature compensation factor; The centroid frequency; The initial wavelength; The wavelength of the centroid; The maximum frequency offset is dynamically adjusted based on the current minimum lattice spacing within the material, i.e.: ； In the formula, This is the updated maximum frequency offset. For dynamic safety margin.

5. The control method for automated production of aerospace cables according to claim 2, characterized in that, The construction of the scattering tensor field that satisfies the requirement of electromagnetic field covariance includes: The decoherently scattered signal is converted into a gradient tensor. A three-dimensional Fourier transform is then performed on the gradient tensor to map the signal's oscillation characteristics to the phase distribution in the wave vector domain, i.e.: ； In the formula, The complex phase field in wave vector space; For plane wave propagation terms; The time second derivative of the affine signal; For the modulated wave vector; For three-dimensional spatial position; A wave vector filtering mechanism is established based on the Bragg condition to filter out non-Bracket scattering noise, i.e.: ； In the formula, For the Bragg allowed wave vector set; For the frequency allowable band range, where This is the lower limit of the allowed range; This represents the upper limit of the allowed range. The phase field is constrained using the projection operator of the phonon group velocity, thus eliminating the phase shift caused by thermal motion, i.e.: ； In the formula, Let be the gradient vector of the complex phase field; The phonon group velocity vector; Define a projection operator to force an arbitrary vector onto the phonon group velocity direction and output a dynamically pure phase field, i.e.: ； In the formula, To constrain the phase field; For the Prague filter; Coupled constraint phase field and gradient tensor, i.e.: ； In the formula, These are second-order tensor components; n and m are spatial dimension indices. For the spatial components of the nth coordinate axis; Spatial components of the m-th coordinate axis; The second-order tensor components are restructured into a matrix to generate an antisymmetric nuclear tensor that characterizes the scattering curl. The equivalent electromagnetic source distribution is inverted based on the antisymmetric nuclear tensor, and a second-order scattering tensor field that satisfies the electromagnetic law is output.

6. The control method for automated production of aerospace cables according to claim 5, characterized in that, The output is a second-order scattering tensor field that satisfies the electromagnetic laws, including: Based on the energy excitation source of the antisymmetric nuclear tensor reduced scattering field, namely: ； In the formula, It is an equivalent current source; For displacement current; where Permeability, It is the dielectric constant; For vector differential operators; K is the antisymmetric kernel tensor; The spatial distribution structure of the original energy source driving the scattered field is based on the equivalent current source. ； In the formula, For the Laplace operator; For the scattering source density field; By applying relativistic covariance gauge conditions to the scattering source density field, redundant components violating the Lorentz gauge are removed by the gauge scalar field, and a scattering tensor field with spacetime invariance is output. ； In the formula, It is a second-order scattering tensor field; To standardize scalar fields.

7. The control method for automated production of aerospace cables according to claim 6, characterized in that, The reconstructed spatially continuous distribution of the intrinsic orientation field of the insulating layer molecular chains includes: Separating the scattered component from the measurement signal, i.e.: ； In the formula, The complete electric field polarization state measurement value at a certain point in space; Here is the scattering coupling matrix; This is the axial deflection angle of the molecular chain; For orientation response operators; This is quantum fluctuation noise; The descattering orientation field is calculated using the pseudo-inverse operator of the orientation response operator, i.e.: ； In the formula, For descattering orientation field; A pseudo-inverse operator for orientation response operators; It is the Riemannian manifold norm; Based on the descattering orientation field, the orientation angle values ​​of discrete grid points are reconstructed into a continuous field function, i.e.: ； In the formula, The reconstructed intrinsic orientation field; U is the number of discrete points; For local curvature weights; These are radial basis functions; Let be the coordinates of the i-th discrete grid point.

8. The control method for automated production of aerospace cables according to claim 7, characterized in that, The scattering coupling matrix is ​​used to quantify the polarization conversion relationship between incident and scattered radiation, that is: ； In the formula, matrix elements The coupling efficiency of a specific scattering path, where n and m are indices of the polarization direction; q is the dielectric tensor function; q is the scattering vector.

9. The control method for automated production of aerospace cables according to claim 7, characterized in that, The orientation response operator is used to perform a linear transformation that maps molecular orientation angles to polarization responses, i.e.: ； In the formula, It represents the molecular electronic polarizability; These are parallel polarization components; These are orthogonal polarization components; The polarization angle of the incident terahertz wave.

10. The control method for automated production of aerospace cables according to claim 7, characterized in that, The discrete truth value for generating the pure structural disorder degree includes: The instantaneous angular deviation rate of change is calculated based on the reconstructed intrinsic orientation field, i.e.: ； In the formula, Three-dimensional spatial coordinates The scalar field representing the rate of change of the instantaneous angular deviation at a given point; Spatial gradient vector of intrinsic orientation field; This is the unit vector along the conductor's axis. The scalar field integral of the instantaneous angular deviation rate of change is the orientation disorder energy, i.e.: ； In the formula, E is the orientation disorder energy of the entire insulating layer; V is the physical volume space of the insulating layer. The dimensionless reference quantity used to eliminate geometric interference is generated based on the energy of the overall orientation disorder of the insulating layer, namely: ； In the formula, This represents the original variance of dispersion. A Boltzmann suppression factor is introduced into the original variance of dispersion to remove spurious signals from molecular thermal motion, i.e.: ； In the formula, This is the true value of the dispersion after thermal correction; The molecular rotational stiffness coefficient; This is the thermally induced mean square angular displacement. is Boltzmann's constant; T is the absolute temperature.

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