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Updraft measurement method of airplane used in weather modification

A technology of artificially influencing weather and measuring method, applied in the field of aviation meteorology, it can solve the problem that the updraft cannot be settled, and achieve the effect of improving the catalytic efficiency

Active Publication Date: 2018-06-22
TAIYUAN AERO INSTR +1
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Problems solved by technology

[0004] In order to solve the problem that the updraft cannot be settled by the traditional method, the present invention provides a method for measuring the updraft of the aircraft that artificially affects the weather

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  • Updraft measurement method of airplane used in weather modification

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Embodiment Construction

[0031] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0032] A method for measuring the updraft of a weather modification aircraft, comprising the following steps,

[0033] 101~Obtain the true airspeed Vt, angle of attack α, and sideslip angle β of the fixed-wing aircraft, and calculate the three-dimensional components VtX, VtY, and VtZ of the true airspeed Vt in the body coordinate system according to the angle of attack α and the angle of sideslip β. Be vector VtSb=(VtX, VtY, VtZ), wherein: VtX=Vt*cosβ*cosα, VtY=Vt*sinβ, VtZ=Vt*cosβ*sinα;

[0034] 102~The vector VtSb=(VtX, VtY, VtZ) is transformed into the vector of the ground coordinate system by the body coordinate system and recorded as VtSg=(VtXg, VtYg, VtZg); The transformation matrix of the body coordinate system Sb to the ground coordinate system S...

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Abstract

The invention belongs to the aviation meteorology field and discloses an updraft measurement method of an airplane used in weather modification. By using a traditional method, updraft can not be settled. In the invention, the above problem is solved. The method comprises the following steps of 101, acquiring the true airspeed Vt, the angle of attack alpha and the sideslip angle beta of fixed wingairplane flight; 102, converting a vector VtSb=(VtX, VtY, VtZ) into a ground coordinate system from a body coordinate system; 103, acquiring the three-dimensional ground speeds VgXg, VgYg and VgZg, the pitch angle theta, the roll angle phi and the course angle psi of the fixed wing airplane flight; and 104, in the ground coordinate system, subtracting a three-dimensional airspeed from a three-dimensional ground speed and acquiring the updraft. In the invention, the updraft can be accurately measured; the measurement of the updraft is performed in an artificial precipitation field, which can beused to determine an airflow direction and a size in cloud and can be used for precipitation work scheme making; and catalytic efficiency is increased.

Description

technical field [0001] The invention belongs to the field of aviation meteorology, in particular to an updraft measurement method for artificial weather modification aircraft. Background technique [0002] At present, the meteorological field mainly measures high-altitude wind by releasing balloons, using the flying balloon as a particle moving with the airflow, using ground equipment to track the balloon’s ascent trajectory, reading the elevation angle, azimuth angle, and slant distance of its time interval, and determining its spatial position The coordinate value of the balloon can be used to find the average wind speed and wind direction at the altitude passed by the balloon. This method can only measure the horizontal wind speed and direction, but cannot detect the updraft, and the time for one detection is basically not less than 2 hours, and the temporal and spatial representation is poor. [0003] Some fixed-wing aircraft are used for high-altitude wind detection. W...

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Application Information

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IPC IPC(8): G01M10/00
Inventor 孔宪书李培仁郝奎高龙孙鸿娉李钰
Owner TAIYUAN AERO INSTR
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