Sonde and upper-air-wind detecting method based on INS

Abstract

The invention provides a sonde and an upper-air-wind detecting method based on an INS. The sonde includes a meteorological sensor, an inertial navigation module, a sonde mainboard and a transmitter. The meteorological sensor is used for detecting a plurality of meteorological elements in the air. The inertial navigation system is used for acquiring navigation parameters of the sonde. The sonde mainboard is in signal connection with the meteorological sensor and the inertial navigation module and is used for performing data quality processing, signal sampling conversion and data-stream generation on the meterological elements and the navigation parameters and sending the data stream to the transmitter. The transmitter is for receiving and transmitting the data stream transmitted by the sonde mainboard. The sonde and the upper-air-wind detecting method realize positioning through arrangement of the inertial navigation module in the sonde. The system is independent and does not generate electromagnetic interferences on the outside. A wind detection precision meets service requirements at present so that the method provides a novel effective way for upper-air-wind detection under a special environment.

Description

technical field [0001] The invention relates to the technical field of high-altitude meteorological detection, in particular to a radiosonde and an INS-based high-altitude wind detection method. Background technique [0002] Upper-altitude wind detection in meteorological operations generally refers to the determination of the direction and speed of horizontal airflow at various heights from the ground to more than 30 kilometers in the air, that is, the determination of wind direction and wind speed. Real-time and accurate high-altitude wind detection data are the most basic data for weather analysis and forecasting, and are also the basic data for military meteorological support such as airdrops and airborne, artillery and air defense ballistic corrections. In meteorological operations, the trajectory of an object (usually a weather balloon or a balloon system composed of a weather balloon and a radiosonde) floating in the air is usually used to detect upper-altitude wind, ...

AI Technical Summary

Problems solved by technology

The detection of optical wind theodolite is easily affected by visibility and low clouds, and it is difficult to guarantee the detection height of high-altitude wind; the radio theodolite and wind radar system are complex, with large volume and weight, poor portability, and the error of wind measurement at low elevation angles is extremely large. The data cannot be used. In addition, the wind measurement radar must emit high-power electromagnetic waves for a long time, consumes a lot of power, and is likely to cause electromagnetic interference to other equipment; GNSS wind measurement accuracy is high, does not emit high-power electromagnetic waves, and its size and weight are small, but The system positioning depends on the existence and reliability of the space navigation constellation. When the satellite navigation signal encounters human interference, magnetic storms in the ionosphere, solar wind and other abnormalities will affect the positioning accuracy of the system, resulting in a decrease in wind measurement accuracy or even failure to measure wind

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