14 results about "Transmission distortion" patented technology

This application discloses a method for enhancing the quality of bare fiber sensing signals in vehicle-mounted vibration environments. It relates to the field of fiber optic sensing signal quality enhancement, and utilizes a multi-axis inertial measurement unit and a vibration sensing network to construct a spatiotemporal feature tensor, enabling three-dimensional dynamic perception of the vibration environment. Filtering parameters and gain are dynamically configured based on vibration characteristics to ensure stable signal acquisition under strong vibration conditions. A deep feature decoupling network, combined with vibration environment information, effectively separates noise from the target signal, improving the signal-to-noise ratio. A dynamic compensation module, based on a physical heuristic model, corrects vibration-induced transmission distortion from three dimensions: polarization state, birefringence, and microbending loss, ensuring the physical integrity of the signal. A closed-loop collaborative control mechanism dynamically optimizes the parameters of each module through real-time signal quality feedback, forming an adaptive optimization closed loop. Through spatiotemporal multi-dimensional collaborative processing, high-quality and robust enhancement of bare fiber sensing signals in vehicle-mounted vibration environments is achieved.

The application discloses a kind of pressure-resistant waterproof cable and preparation method thereof, it is related to cable technical field, to solve the problem of insufficient waterproof performance and limited pressure resistance of existing cable, including cable core, the outside of the cable core is equipped with insulation layer, the outside of the insulation layer is equipped with inner waterproof layer, the outside of the inner waterproof layer is equipped with pressure-resistant layer, the outside of the pressure-resistant layer is equipped with outer waterproof layer, the outside of the outer waterproof layer is equipped with outer sheath.The application has greatly improved the waterproof performance of cable, effectively prevents moisture from penetrating into the cable inside, avoids the signal transmission distortion, noise interference and other problems caused by the performance decline of insulation layer, at the same time, significantly enhance the pressure resistance of cable, so that it can effectively protect the internal structure when being extruded or collided by external force, guarantee the stability of signal transmission.

The application relates to a data redundancy coding method based on a deterministic network cooperative transmission, comprising the following steps: calculating node-to-node cooperative transmission distortion, single data redundancy coding, multi-data redundancy coding, calculating a deterministic network system distortion, quantifying the correlation between redundancy coding parameters, updating the redundancy coding parameters, quantifying the relationship between different data redundancy coding parameters, determining optimal redundancy coding parameters, determining optimal redundancy coding parameters and the number of data packets according to the above steps, and designing a redundancy transmission system. The relationship between the number of packets, redundancy coding parameters and quantization coefficients during multi-packet redundancy transmission is derived through nonlinear fitting, the total distortion cost in the case is modeled, optimal parameters are selected for multi-packet redundancy transmission system design, and the link distortion caused by redundancy transmission can be minimized while high reliability is ensured.

The utility model discloses multi-channel full-rate bit error rate test equipment, which comprises an MCU (Microprogrammed Control Unit) controller, a pseudo-random code pattern generator, a pseudo-random code pattern detector, a clock source circuit, a signal shaping circuit and a power supply circuit, the MCU controller, the clock source circuit and the signal shaping circuit are connected with the pseudo-random code pattern generator and the detector. And the MCU controller receives a user instruction to set test parameters, flexible adjustment can be performed according to different requirements, and the universality and applicability of the equipment are enhanced. The clock source circuit provides a time reference for signal processing, ensures accurate generation and synchronous detection of pseudo-random code patterns, and improves the statistical accuracy of bit error rates. The signal shaping circuit balances and filters input signals, compensates transmission distortion, improves signal quality, reduces misjudgment caused by distortion, and improves error rate calculation precision. The pseudo-random code pattern generator and the detector count the number of error codes and calculate the error rate, and provide key data for evaluating the transmission quality of a communication system.

The utility model relates to the technical field of scanning probe microscopes, and discloses a high-precision electrical measurement probe clamping device which is at least applied to a scanning probe microscope. The device comprises a base; the clamping structure is arranged on the base, and an accommodating space is defined by the clamping structure and the surface of the base; the clamping structure at least partially forms electric shielding between the containing space and the external environment. As the clamping structure forms electric shielding between the accommodating space and the external environment, broadband radio frequency interference in the space can be prevented from invading a signal link through radiation coupling, and high-frequency weak capacitance signal transmission distortion is avoided. Moreover, the clamping structure can clamp the probe assembly, so that the position of the probe assembly is fixed in the measurement process, and the measurement error caused by the shaking of the probe assembly is reduced. Through the synergistic effect of electric shielding and mechanical clamping, the influence of electromagnetic interference and mechanical disturbance on signals is reduced, and then the accuracy and reliability of the electrical property measurement result of the material are improved. The utility model also discloses a scanning probe microscope.

The application provides a transformer frequency response test device and method based on convolution compensation, which comprises a signal generating unit, a double-channel signal collecting unit, a data storage and interaction unit, a central processing and control unit, a standardized interface module and a calibration module. By injecting a broadband calibration signal into the test cable, the incident signal, the output signal and the reflected signal are collected to calculate the preliminary transfer function of the cable; the cable transfer function is fitted based on the convolution integral model, the phase frequency characteristic is directly measured by using the reflected signal, and the transfer function of the cable is obtained; then the transformer frequency response test is carried out, the transmission distortion of the excitation cable and the response cable is respectively deconvoluted and compensated, the real transfer function of the transformer winding is calculated, and the amplitude frequency and phase frequency characteristic curves are generated. The frequency coupling effect of the cable is described by introducing the convolution integral operator, the accuracy of the transformer frequency response test is improved, and a reliable basis is provided for the winding deformation diagnosis.

The invention belongs to the technical field of early warning devices, and discloses an energy storage EMS fault early warning device which comprises a box body playing a protection role, and a transmission mechanism, an acquisition mechanism, an amplification mechanism and an alarm display mechanism are installed in the box body. An existing device has the problems of single monitoring, transmission distortion, complex structure and the like, the device adapts to multi-parameter monitoring through multiple groups of ratchet wheels and corresponding acquisition mechanisms, a deformation plate drives an ejector rod to drive a gathering rotating rod to rotate through a pawl, and a roller pushes a sliding block to enable a rack to drive a pointer to indicate a fault level on a fluorescent dial; acousto-optic early warning is achieved in cooperation with a multi-color alarm lamp, more than three parameters can be monitored through the multi-ratchet design, and the transmission precision is improved through a double-gear anti-backlash and self-lubricating structure.

The application discloses a new type of hydraulic driving swing plate wave making device and relates to the field of soil centrifugal simulation test devices. The traditional linear hydraulic wave making device mechanism is prone to problems such as jamming, liquid leakage, wave form transmission distortion and the like when running at high speed under a super gravity field. The application utilizes the natural anti-centrifugal force characteristics of a servo hydraulic swing cylinder, and uses a heavy load cylindrical rod to directly hinge a wave making plate and the hydraulic swing cylinder, thereby simplifying the transmission mechanism, overcoming the non-uniform deformation of the linear hydraulic mechanism and the transmission mechanism under a super gravity field, and overcoming the above-mentioned problems such as the existence of high-order harmonics in wave form transmission. The application has the advantages of stable and reliable mechanism and small deformation, improves the transmission efficiency and service life of the equipment, and can realize high water depth, high frequency and large amplitude wave making under a super gravity field.

The display panel and the electronic equipment provided by the embodiment relate to the technical field of display. In the region corresponding to the anode block, the fourth metal layer forms signal lines, and the orthographic projection of the signal lines on the substrate layer is axially symmetrically distributed relative to the symmetry axis of the orthographic projection of the anode block on the substrate layer, and at least one signal line in the fourth metal layer is connected with a signal line in the first metal layer, the second metal layer or the third metal layer. The above design can make the anode block more flat, and improve the color deviation of the display panel on the opposite side caused by the uneven anode block, on the one hand, by axially symmetrically distributing the signal lines formed by the fourth metal layer relative to the symmetry axis of the orthographic projection of the anode block on the substrate layer. On the other hand, the signal line in the fourth metal layer is connected with the signal line of the other layer, which can increase the area of the signal line, reduce the resistance of the signal line, reduce the loss of the signal in the transmission process, and reduce the influence of the signal transmission distortion on the display effect.

This invention discloses a method and system for controlling the wire winding of a power pole frame based on real-time tension feedback. Specifically, it relates to the field of wire winding tension control technology in the manufacturing of prestressed concrete power poles, and is used to solve the problems of tension feedback distortion and uneven prestressing caused by the dynamic changes in the friction coefficient between the steel wire and the frame in existing technologies. By acquiring the steel wire tension feedback value and the axial position information of the winding head in real time, the system judges control anomalies based on tension deviations. When an anomaly occurs, it continuously calculates the higher-order statistics of the tension value and identifies the directional change of the friction state based on its evolution trajectory. It correlates this evolution feature with the axial position to determine the spatial propagation characteristics of the friction state change, evaluates the degree of tension transmission distortion based on this feature, and finally dynamically compensates and adjusts the tension control system parameters according to the degree of distortion. This method can effectively identify and compensate for tension distortion caused by time-varying friction, and improve the uniformity and accuracy of prestressing application.

This invention discloses a method and system for controlling the wire winding of a power pole frame based on real-time tension feedback. Specifically, it relates to the field of wire winding tension control technology in the manufacturing of prestressed concrete power poles, and is used to solve the problems of tension feedback distortion and uneven prestressing caused by the dynamic changes in the friction coefficient between the steel wire and the frame in existing technologies. By acquiring the steel wire tension feedback value and the axial position information of the winding head in real time, the system judges control anomalies based on tension deviations. When an anomaly occurs, it continuously calculates the higher-order statistics of the tension value and identifies the directional change of the friction state based on its evolution trajectory. It correlates this evolution feature with the axial position to determine the spatial propagation characteristics of the friction state change, evaluates the degree of tension transmission distortion based on this feature, and finally dynamically compensates and adjusts the tension control system parameters according to the degree of distortion. This method can effectively identify and compensate for tension distortion caused by time-varying friction, and improve the uniformity and accuracy of prestressing application.

The utility model discloses an electric power fault recording analysis device, belongs to the technical field of electric power equipment, and aims to solve the technical problems that the device in the prior art is usually statically arranged in a machine room, and dust and impurities in air can enter the equipment from an exposed socket position of the device due to static electricity of the equipment because the air flow speed in the machine room is relatively slow. The problem that the accuracy of recording data is affected by the fact that dirt is formed at a metal contact in a long time, contact resistance is increased, signal transmission is distorted and unstable, and even a short-circuit fault is caused is solved. Comprising a main body, portable mechanisms are installed on the two sides of the main body, a wire harness storage box is arranged on one face of the main body, a display screen is arranged on one side of the front end of the main body, sockets are formed in the other side of the front end of the main body, a dustproof protection mechanism is installed at the front ends of the multiple sockets, and the dustproof protection mechanism comprises multiple front mounting frames; and the plurality of front mounting frames are separately arranged at the front ends of the plurality of sockets.

A Doppler-resilient Universal Filtered Multicarrier Modulation (DR-UFMC) apparatus (102) is disclosed. The DR-UFMC apparatus (102) is configured to generate one or more DR-UFMC pilot signals (SDR-UFMC) based on Orthogonal Time Frequency Space (OTFS) pilot signals (SOTFS), wherein the OTFS pilot signals (SOTFS) are distorted prior to transmission to account for transmission distortion from the DR-UFMC modulation scheme. The DR-UFMC apparatus (102) can be used in various applications such as vehicular communications, satellite links, and other high-speed communication systems, offering improved spectral efficiency, reduced interference, and enhanced communication stability.

The invention relates to the technical field of radio-frequency connectors, in particular to a light radio-frequency connector with high shielding performance, which comprises a radio-frequency plug and a radio-frequency socket, and is characterized in that the radio-frequency plug comprises a shell, a shielding ring, a coupling nut assembly, a positioning pin, a rear cover, a square clamp spring, a clamp spring, a clamping jaw, a radio-frequency jack and a wire sealing body. According to the light radio frequency connector with the high shielding performance, an integrated hole cavity structure of the shell and the square plate shell is matched with the shielding ring, so that multiple shielding protection is formed, external electromagnetic interference and internal signal leakage are reduced, signal transmission distortion is avoided, the light radio frequency connector is adaptive to a high-anti-interference requirement scene, and the signal transmission stability is guaranteed; light weight and connection sealing performance are optimized, structural design is simplified, positioning keys and positioning key grooves for precise positioning are matched, misinsertion and connection loosening are avoided, and use stability is improved; the sealing ring, the wire sealing body and other structures enhance the sealing effect, prevent dust and water vapor from invading, prolong the service life and adapt to complex environments.