25 results about "Stratosphere" patented technology

The invention discloses an atmospheric turbulence phase screen generation method based on layered physical constraints, and belongs to the crossing field of optical communication and artificial intelligence. According to the method, a diffusion probability model is combined with layered atmospheric physical constraints, independent physical constraint loss functions are established for a boundary layer, a troposphere and a stratosphere of the atmosphere, and it is ensured that a generated phase screen conforms to turbulent flow statistical characteristics of all layers through power spectrum density constraints and structure function constraints; enhancing feature learning of each layer of phase screen by adopting a physically guided attention mechanism; and designing a time-dependent constraint weight strategy, and adaptively adjusting the physical constraint strength in the diffusion denoising process. The method solves the technical problems that the vertical layering difference is ignored, the physical consistency is insufficient, and the generation quality depends on a large amount of labeled data in the existing method, is particularly suitable for high-fidelity atmospheric turbulence modeling of a satellite laser communication link, and can also be widely applied to the fields of free space optical communication system simulation, adaptive optical system design and the like.

The invention relates to the technical field of electrical digital data processing, and provides a stratosphere vortex dynamics-based meta-heuristic optimization method, which comprises the following steps of: initializing vortex optimization parameters; randomly generating an initial population in the search space, and calculating the fitness value of each individual in the initial population; according to a dynamic vortex center construction strategy, determining a vortex center based on the fitness value, and judging whether to trigger an SSW mechanism; updating the population according to a triple dynamics mechanism collaborative updating mechanism; determining a stage type, and updating position parameters by applying different mechanisms according to the stage type; judging whether a termination condition is met or not; if yes, archiving an optimal solution; otherwise, updating the iteration counter and returning. The global exploration capability and the local optimal escape capability of the algorithm are enhanced by combining the nonlinear characteristic of an SSW splitting mechanism, and the possibility of exploring and positioning a high-quality solution is increased by introducing three mechanisms to cooperatively guide the position update of each search agent.

An observation system 1 includes: a ground device 10 that is installed on the ground; and a balloon 20 that moves to the stratosphere P. The balloon 20 includes: weather sensors N that observe the atmosphere to obtain an observation result; and a control device 30 that communicates with the ground device 10 and controls the weather sensors. The ground device 10 transmits, to the control device 30, control signals for the weather sensors N. The control device 30 controls the weather sensors in accordance with the control signals received from the ground device 10.

System and method for intercepting intruding stratospheric balloons. The method comprises: receive (102, 104) a high-altitude wind profile (6) and a position (P0) of an intruding stratospheric balloon (2); Determine (106, 108), using the high-altitude wind profile (6), a future trajectory (10) of the intruding stratospheric balloon (2) and ascending trajectories (11a, 11b) of an intercepting stratospheric balloon (5) that intercept the future trajectory (10) at different positions (PF1, PF2); select (110) an upward path (11a); to perform a launch (112) of the intercepting stratospheric balloon (5) at a launch location (Li) and time (tL1) associated with the selected upward trajectory (11a); detect (114) deviations of the trajectory followed by the interceptor stratospheric balloon (5) during ascent with respect to the selected ascending trajectory (11a) and correct such deviations by activating a flight control system (12) of the interceptor stratospheric balloon (5); and activate (116) an interception apparatus (13) of the intercepting stratospheric balloon (5) once the interception (15) of the intruding stratospheric balloon (2) occurs.

The invention discloses a bionic air-space cooperative atmosphere intelligent regulation and control system and method. The system comprises a twin digital earth, an atmospheric brain, an air-space AI mobile base comprising a troposphere special base and a stratosphere special base, a plurality of macroscopic telescopic pipelines, an array composed of macroscopic intelligent sunshade reflectors, and a multifunctional intelligent micro-unit cluster. A regulation and control strategy is generated through multi-source data assimilation and intelligent strategy optimization, physical states such as temperature and humidity of air masses in a pipeline are actively adjusted through an environment control section in a macroscopic telescopic pipeline, and low-energy-consumption, stepped and directional transportation of cloud water substances is achieved by actively utilizing the chimney effect formed by the atmospheric environment; controllable adjustment of solar radiation input is achieved through dynamic management of the intelligent sunshade reflector array. The system has four operation modes which can be evolved according to technical capability stages from macroscopic direct intervention to global intelligent collaboration, and is configured with a module recovery and platform stability anchoring mechanism so as to realize emergency intervention on disastrous weather.

Provided is a technique with which it is possible to contribute to realizing a film material which is used in environments from the stratosphere to extraterrestrial environments, and is not susceptible to breaking at low temperatures. This film material (20) is used in environments from the stratosphere to extraterrestrial environments, and comprises a resin film, said resin film having an estimated elongation at break value at -100°C in any area S of at least 400,000 mm2 of at least 10% in both the MD direction and the TD direction, as calculated using a Weibull analysis which uses an elongation at break value measured at -100°C in conformity with JIS K 7127:1999 (test piece type 5).

Particles, powders thereof, particle dispersions throughout the stratosphere and corresponding methods for solar radiation modification and management (SRM) are provided. Disclosed particles are safe for inhalation and in the biosphere, inert towards most compounds in the atmosphere, optionally produced in large-scale production of millions of tons per year, scatter in the visible and ultraviolet (UV) ranges without significant absorption, scatter and minimize absorption in the infrared (IR) range, sized to achieve a residence duration in the stratosphere that is longer than a year, optical properties and safety criteria, tagged for monitoring dispersal and distribution, and dispersible from an airplane with a bulk density over 0.3 g / cc and with respect to the required energy and air available for dispersal from the airplane.

An observation system 1 comprises: a ground device 10 installed on the ground; and a balloon 20 moving to a stratosphere P. The balloon 20 includes a weather sensor N for observing the atmosphere to obtain an observation result, and a control device 30 for communicating with the ground device 10 and controlling the weather sensor. The ground device 10 transmits a control signal for the weather sensor N to the control device 30. The control device 30 controls the weather sensor in accordance with the control signal received from the ground device 10.

The invention discloses a lifting body duct and a high-altitude power generation device comprising the same, the lifting body duct comprises a duct body, the duct body is a revolving body, the section contour of the duct body is defined by four curves L1, L2, L3 and L4, the revolving axis of the duct body coincides with a straight line y = 0, the curve L1 and the curve L2 are elliptic curves, and the curve L2 and the curve L3 are elliptic curves. The curve L3 and the curve L4 are represented by a Bezier curve, by applying the high-altitude power generation device comprising the lifting body duct, the stability of the high-altitude power generation device can be effectively improved, and the length of a mooring assembly of the high-altitude power generation device is reduced.

The invention discloses a wind speed sensor and a preparation method, and the wind speed sensor comprises a flexible feather substrate which is a feather sheet without a feather shaft; the conductive layer is formed on the surface of the feather substrate; a conductive path formed on the surface of the conductive layer; and the lead structure is arranged at the end part of the feather substrate and is used for connecting the conductive path and an external circuit. According to the wind speed sensor and the preparation method provided by the invention, stable, accurate and rapid in-situ measurement of the wind speed can be realized in an extreme environment of a high-altitude stratosphere.

The invention discloses a transition prediction method considering a wall surface heating and cooling effect, which is used for carrying out targeted correction on a simplified stability foundation transition model and expanding the application range of the model to considering the influence of a non-adiabatic wall effect of generalized wall surface heating and cooling. A localized momentum thickness Reynolds number expression and a transition initial momentum thickness Reynolds number expression which consider the wall surface heating and cooling effect are constructed, the two expressions are coupled into a gamma transport model, and a transition transport model which considers the wall surface heating and cooling effect is obtained after wind tunnel example verification. Therefore, transition prediction of the stratospheric high-altitude airship under the wall surface heating and cooling effect is realized. Experiments prove that the obvious upstream movement of the transition front caused by wall surface heating can be accurately reproduced, so that a steady engineering foundation is provided for aerodynamic design and optimization of a laminar flow platform considering the non-heat-insulating wall effect in the future.

The invention relates to the technical field of atmosphere detection, and discloses a stratosphere explosive warming event prediction method based on multi-source data and a neural network, which comprises the following steps: respectively aggregating hour-by-hour weft wind and polar region temperature, acquiring a day-by-day mean value, calculating a day-by-day climate state, correcting the day-by-day mean value, and acquiring a day-by-day distance; obtaining a corresponding power signal and a thermal power signal after standardization; the dynamic signal and the thermal signal constructed by the invention eliminate annual cycle seasonality of data and systematic deviation under different climate backgrounds, data of different years are unified to a comparable reference, the characterization capability of the constructed feature data is improved, a machine learning model can concentrate on learning features directly related to SSW, and the accuracy of the SSW is improved. Therefore, the model learning efficiency and the characteristic interpretability are greatly improved, the prediction precision of the trained target prediction model is further improved, and the stratosphere explosive warming event can be found in time.

The application provides an ozone profile inversion method based on thermal infrared remote sensing and belongs to the technical field of atmospheric environment remote sensing. The technical scheme is as follows: S1, data collection and processing; S2, an ozone prior profile model; S3, a temperature and humidity profile error correction model; S4, thermal infrared ozone profile optimization inversion; and S5, determination of a proportional factor. The application has the beneficial effect that the stratospheric column total amount and the tropospheric column total amount are respectively used for constraint in the optimization inversion, so that the accuracy of the ozone profile, especially the accuracy of the lower troposphere, is improved, and the deficiency of the thermal infrared sensor in the nadir observation mode is made up.

Degradation tests of objects are conducted in extreme environments such as the stratosphere. [Solution] One aspect of the present disclosure is a degradation testing apparatus for testing the degradation of a sample, comprising: a sealed container; a sample holding unit for holding the sample in the sealed container; a light source unit for irradiating the sample with light; and a concentration adjustment unit for reducing the number of oxygen molecules in the sealed container to less than the number of oxygen molecules in an atmospheric pressure environment. The concentration adjustment unit controls the number of oxygen molecules in the sealed container to be 5.11 × 10^21 or less when converted to a volume of 1 liter, and the light source unit emits light including wavelengths of 300 nm or less.

The invention discloses a dynamic injection method and system for polarization scattering data of spherical aerosol, and relates to the technical field of atmospheric remote sensing. The method comprises the following steps: receiving a continuously changing micro-physical parameter group of aerosol; substituting into a particle size distribution model, and calculating an original scattering matrix in a Stokes observation space in real time based on a Mie scattering theory; mapping the original scattering matrix to a calculation space with diagonalization features through a base conversion protocol so as to extract independent features of the polarized components; performing structured packaging on the scattering data subjected to the substrate conversion processing according to the memory layout of the target engine; and injecting the encapsulated data into a computing kernel of the target engine in a forward simulation process of the target engine by adopting a memory dynamic coverage technology. The method aims at solving the problem that stratosphere aerosol polarization scattering interference is difficult to accurately eliminate, polarization independent characteristics are extracted through physical symmetry explicit substrate diagonalization conversion, simulation efficiency is improved, and system errors introduced by model distortion are eliminated.

The application relates to the technical field of laser radar, and discloses a full-solid-state troposphere and stratosphere ozone detection laser radar system which comprises a pump light generation module, a solid-state ultraviolet laser module, a wavelength real-time monitoring module, a return light signal receiving module and a signal collection and storage module. The pump light generation module is used for generating an ultraviolet laser beam; the solid-state ultraviolet laser module divides the ultraviolet laser beam into four detection lasers which respectively form a differential absorption wavelength pair for detecting stratosphere ozone and a differential absorption wavelength pair for detecting troposphere ozone; the wavelength real-time monitoring module is used for monitoring the frequencies of the four detection lasers in real time; the return light signal receiving module is used for receiving backscattering return light signals of the detection lasers at different altitudes and converting the backscattering return light signals into electric signals; and the signal collection and storage module is used for collecting the electric signals and storing the electric signals as digital signals. The full-solid-state design of the system is realized through the optical parametric oscillation technology when four narrow-band laser ozone detection wavelengths are generated, the ozone concentrations in the stratosphere and the troposphere can be simultaneously detected, and continuous observation can be realized in the daytime and at night.

The invention relates to the technical field of electronic equipment heat dissipation, and discloses a thermal management device and method for stratospheric unmanned aerial vehicle communication load, a passive thermal control device and an active thermal control device are arranged, the passive thermal control device adopts a controllable heat pipe, and the active thermal control device adopts a temperature sensor and a controller to control a heater. In a stratosphere low-temperature environment or a system starting stage, the controllable heat pipe is actively closed, and meanwhile, the heater performs directional heating on a communication load, especially a key area of a printed circuit board (PCB), so that heat preservation and rapid temperature rise are realized; and in the high-power-consumption operation stage, the heater stops working, the controllable heat pipe is started, passive heat dissipation is completed, and formation of local hot spots is effectively restrained. A mutual exclusion cooperation mechanism is formed through on-off of the controllable heat pipe and starting and stopping of the heater, heat is not guided out during heating, an extra heat source is not introduced during heat dissipation, the problem that heating and heat dissipation interfere with each other in a traditional scheme is avoided, energy waste is avoided, accurate heat management of communication loads is achieved, and reliability is high.

The application provides a stratosphere wind field analysis method, device and equipment, including: a distance measurement unit, which calculates the similarity of historical wind fields between any regions (longitude, latitude, height) through a distance measurement algorithm; a space-time similarity analysis unit, which analyzes the space-time similarity of global stratosphere wind fields by taking a clustering algorithm as a core, and obtains the distribution of similar regions of global stratosphere wind fields; and an easy-to-stay space-time analysis unit, which finds the space and time in which a target region / similar region is more likely to stay by analyzing wind direction diversity. The mining of similar regions can play a role in the reuse of wind field observation data and airship navigation experience; and the time and space found by analyzing wind direction diversity, which are more suitable for the stay of an aircraft, can significantly improve the stay accuracy. Through the analysis of the stratosphere wind field, the technical solution can generally improve the stay time and performance stability to a certain extent, and thus enables the aircraft to perform better observation and communication.

A ground-high altitude platform-satellite (G-H-S) laser communication system and method based on anisotropic non-Kolmogorov turbulence are provided, and the system includes a ground transmitting terminal, a HAP, a satellite terminal, a ground-HAP uplink and an HAP-satellite uplink. When laser beams are transmitted upwards from the ground transmitting terminal and through the HAP, the laser beams are affected light intensity scintillation, beam drift, and angle of arrival fluctuation, and are transmitted through vacuum channels and received by receiving antenna of the satellite terminal. The HAP is located at stratosphere, and an anisotropic non-Kolmogorov turbulence model is suitable for analyzing turbulence effect in stratosphere. Thus, the anisotropic non-Kolmogorov turbulence model is used to research transmission characteristics of the laser beams. Meanwhile, a hexagon quadrature amplitude modulation (HQAM) is used in the G-H-S laser communication system, which optimizes system performances on basis of improving communication quality, and enhances stability of communication links.

This application provides a method, apparatus, device, and medium for stratospheric airship regional stay control, relating to the field of airship control technology. The method includes: based on real-time wind field data of the airship's current location in a target area, using a wind speed prediction model to predict wind speed changes over a preset time period, and outputting a wind speed prediction sequence; generating the airship's current state vector; based on the wind speed prediction sequence and the current state vector, using a preset model predictive control algorithm, under the condition of meeting propulsion system saturation constraints, with the objectives of minimizing wind load offsetting error and optimizing energy consumption, calculating the desired propulsion force and propeller speed adjustment required to offset future wind loads; real-time correction of the desired propulsion force and propeller speed adjustment to form control commands; and sending the control commands to the propulsion system. This application achieves forward-looking adjustment of airship control actions through wind speed prediction, effectively solving the lag problem of traditional real-time feedback control.

A solar powered plane, such as a plane configured to operate in the stratosphere, that includes a descent control system arranged such that, in the event of loss of control or airframe failure or flight termination, a transferred energy to an impacted object and / or a kinetic energy imparted on impact by any item of the plane that reaches the ground is reduced to less than a predetermined energy or a regulatory or legal safety threshold.

The invention discloses an anti-ultraviolet and creep-resistant stratospheric high-altitude balloon material, which comprises a fiber base cloth; the composite film layer is bonded and fixed on the surface of the fiber base cloth, the composite film layer is a multi-layer co-extrusion film, the composite film layer comprises a polyether polyurethane layer, a polyether polyurethane composite layer, a PFA layer and a PFA composite layer which are sequentially arranged from bottom to top in a covering mode, and the polyether polyurethane layer is arranged on the surface of the fiber base cloth in a covering mode. Compared with the prior art, the problem that stable flight of the high-altitude balloon is affected by insufficient anti-ultraviolet and creep resistance at low temperature (-50 to-80 DEG C) or high temperature (50 to 100 DEG C) of the material is solved.

The invention provides a stratosphere aerostat meteorological early warning method and system and electronic equipment, and relates to the technical field of aerostats, and the method comprises the steps: obtaining multi-source data of a stratosphere target region; performing fusion processing on the multi-source data to obtain fusion analysis data; performing risk assessment on an internal system and an external environment of the aerostat according to the fusion analysis data to obtain a risk assessment result of the aerostat in the stratosphere target area; and generating an early warning result of the aerostat in the stratosphere target area according to the risk assessment result of the aerostat in the stratosphere target area, and carrying out stratosphere aerostat meteorological early warning according to the early warning result, so that comprehensive risks generated by coupling between complex meteorological conditions and the aerostat can be comprehensively assessed.

The application discloses a transition prediction method considering wall heating and cooling effects, and simplifies and modifies a stability basic transport transition model, so that the application range of the stability basic transport transition model is extended to the influence of the non-adiabatic wall effect considering the generalized wall heating and cooling, the localized momentum thickness Reynolds number expression and the transition starting momentum thickness Reynolds number expression considering the wall heating and cooling effects are constructed, and the two expressions are coupled into gamma the transport model, the transition transport model considering the wall heating and cooling effects is obtained after wind tunnel example verification, and then the transition prediction of the stratosphere high-altitude airship under the wall heating and cooling effects is realized. The experiment proves that the application can accurately reproduce the significant upstream movement of the transition front caused by the wall heating, and therefore the application provides a robust engineering basis for the aerodynamic design and optimization of the future laminar platform considering the non-adiabatic wall effect.