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A kind of radiosonde wind measurement system and wind measurement method

A technology of radiosondes and receivers, applied in the field of testing, can solve the problems of dependence and high price, achieve the effect of satisfying the speed accuracy, eliminating errors, and reducing the risk of closing

Active Publication Date: 2017-10-27
AEROSPACE DONGFANGHONG DEV LTD
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Problems solved by technology

[0002] The traditional radiosonde method of measuring position and wind speed is to directly analyze and display the data downloaded by the GPS receiver, which is very dependent on the accuracy of the GPS receiver. The higher the accuracy, the more accurate the GPS receiving positioning, but the higher the price. For a general single-point fixed-speed GPS receiver, the speed-fixed accuracy can reach 0.2m / s in about 95% of the time

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  • A kind of radiosonde wind measurement system and wind measurement method
  • A kind of radiosonde wind measurement system and wind measurement method
  • A kind of radiosonde wind measurement system and wind measurement method

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings.

[0036] The working principle of the radiosonde:

[0037] like figure 1 As shown, the navigation signal receiving module (GPS signal receiver or Beidou signal receiver) on the radiosonde receives the signal sent by the satellite and the data output by the PTU module to combine and frame, and modulate to The 400MHz carrier is amplified by the power amplifier and sent to the ground through the antenna.

[0038] like figure 2 As shown, after the ground 400MHz antenna receives the signal, it is amplified by the wireless network signal device and sent to the FM (frequency modulation) receiver. The FM receiver converts the frequency of the signal, demodulates and processes the data, and obtains the positioning and speed information and PTU (pressure, temperature, humidity) data in the navigation information. The same type of receiver) also receives satellite signals; the...

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Abstract

The invention provides a sonde wind measuring system and a wind measuring method. The sonde wind measuring system and the wind measuring method have the advantages that the speed is measured by a Doppler frequency shift double-differential constant speed algorithm; the inherent error of a GPS (global positioning system) receiver or a Beidou receiver is eliminated, the common error in environments is also eliminated, and the speed accuracy meets the requirement; the risk of closing of a GPS signal in the wartime is reduced, and the domestic Beidou receiver can be used for replacing at any time.

Description

technical field [0001] The invention relates to the field of testing, in particular to a wind measuring system and a wind measuring method for a radiosonde. Background technique [0002] The traditional radiosonde method of measuring position and wind speed is to directly analyze and display the data downloaded by the GPS receiver, which is very dependent on the accuracy of the GPS receiver. The higher the accuracy, the more accurate the GPS receiving positioning, but the higher the price. For a general single-point fixed-speed GPS receiver, the speed-fixed accuracy can reach 0.2m / s in about 95% of the time. Under the background of the completion of the domestic Beidou satellite network, the Beidou receiver will completely replace the GPS receiver in the future. The fixed speed algorithm adopted in the present invention can greatly reduce the The speed-fixing accuracy of the air control instrument is improved, and the invention is compatible with the Beidou receiver. [00...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01W1/08G01S19/52
CPCG01S19/52G01W1/08
Inventor 寇义民刘宽俊何峰李春潘乐尚华于小龙王刚黄旭
Owner AEROSPACE DONGFANGHONG DEV LTD