35 results about "Atmospheric measurements" patented technology

A method and system configured to provide a weather forecast for a selected zone is provided. The method and system is configured to receive meteorological reports and locally sensed measurements. The information is transmitted to a weather model preprocessor disposed on the device which generates an analysis field. This information is passed to the weather model which is an executable program also disposed on the device. The weather model processes the analysis field generated by meteorological reports, large-scale initialization data and in-situ sensor values to generate an initial weather forecast. The weather model updates the initial weather forecast with real-time, high-resolution atmospheric measurements to generate a weather forecast more representative of the user's zone than that available from Internet / media outlets. Furthermore, because the weather model is run on the mobile device itself, staleness of the forecast will no longer be an issue, as forecasts can be generated on demand.

The invention relates to a method and a radiosonde (1). According to the method at least temperature and relative humidity of the atmosphere are measured by a radiosonde (1). In accordance with the invention the humidity measurement is performed continuously in an elevated temperature in order to make the measurement faster and both the elevated temperature and ambient air temperature are measured simultaneously and based on these values relative humidity is determined and the humidity sensing elements are positioned on a planar substrate.

An apparatus providing for simultaneous measurement of the wind upstream and downstream of a wind turbine uses either a single LIDAR beam split into two beams, each focused upstream or downstream of the windmill, or a multiple beam LIDAR with a first beam source aimed toward the upstream direction of the wind and a second beam source aimed at the downstream direction after the wind has passed through the wind turbine. The apparatus may also use LIDAR to measure wind direction and speed by making measurements along slightly different lines of sight, or by pointing the LIDAR in different directions. Two lines of sight allow measuring wind direction in the plane defined by the two lines of sight. Three non-coplanar lines of sight provide the information necessary to determine a full 3-dimensional wind velocity vector. Further, LIDAR may also be used to measure wind speed by estimating the wind velocity using inputs from both aerosol and molecular components.

Embodiments of the present invention provide a method and device for separating temperature and emissivity based on dual networks. Wherein, the method includes: inputting the thermal infrared radiation spectrum and atmospheric measurement parameters of the target object into the first network model, and outputting the atmospheric downgoing radiation; inputting the atmospheric downgoing radiation and the thermal infrared radiation spectrum into the second network model, and outputting the target surface object The temperature and emissivity of ; wherein, the first network model is obtained by training according to the atmospheric lookup table; the second network model is obtained by training according to the sample remote sensing data and its corresponding temperature and emissivity. The temperature and emissivity separation method and device provided by the embodiments of the present invention estimate atmospheric downlink radiation through the first network model, and separate temperature and emissivity through the second network model, which can improve the accuracy of temperature and emissivity separation.

The invention belongs to the technical field of satellite remote sensing, and particularly relates to a satellite remote sensing image atmospheric correction spectral analysis method. Atmospheric correction is performed according to spectral information of the image completely with no requirement for equivalent precision of the image topographic relief area and the flat area after DTM correction or synchronous atmospheric measurement data or ground object reflectivity measurement data, and the correction precision is obviously better than that of the image corrected by the present popular atmospheric correction software. The output atmospheric image and the ground object image are reflectivity images and can be synthesized into true color images and used for quantitative analysis. Landform information and BRDF information of the original image are completely reserved. Partitioned correction is performed on a huge image and the images are spliced into a complete image without lapping defect, and general atmospheric correction software can be developed. The satellite remote sensing image atmospheric correction spectral analysis method is the scientific achievement of the China's national natural science fund ("remote sensing image atmospheric correction spectral vector analysis model", the grant number: 41371394) project.

A carrier energy management section FADS failure judgment and control method, comprising the following steps: obtaining atmospheric data measurement data and inertial measurement data under wind interference; analyzing the characteristic difference between the atmospheric data measurement data and the inertial measurement data; Establish the mathematical representation of the safety boundary of the air data measurement data according to the distribution law of profile height, speed, heading, wind speed and wind direction; judge whether the atmospheric measurement information is in the safety boundary according to the coverage degree of the air data measurement data safety boundary to the atmospheric measurement data Range, when the atmospheric measurement information is not within the safe boundary range, it is judged that the air data sensing system is faulty; when the air data sensing system is faulty, the longitudinal control is performed according to the critical state boundary protection or the roll control is performed according to the sideslip angle boundary protection. In the case of FADS failure or no atmospheric data measurement information during the unpowered return process, the vehicle can still be safely and reliably controlled, ensuring the safe landing of the spacecraft.

The invention belongs to the technical field of aircraft guidance and control, and particularly relates to an adaptive interface device compatible with different pressure sensors. The core point of the invention is to provide a sensor access judgment module design scheme based on a nonvolatile memory pre-stored sensor type. The key points of the invention are that a sensor is equipped with a printed circuit board, a signal processing circuit analog and digital conversion module and a sensor access judgment module in a matched way, an adaptive interface compatible with different pressure sensors is realized, and the problem that signal processing circuit hardware design and software design depends on a concrete pressure sensor type is solved. The requirements of installing (matching) different types of pressure sensors of an atmospheric measurement device under the premise of not changing software and hardware are satisfied.