Electronic Science and Technology ›› 2019, Vol. 32 ›› Issue (2): 42-46.doi: 10.16180/j.cnki.issn1007-7820.2019.02.009

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Simplified Calculation Method of Jet Flame Angle and Telemetry Cloth Station Application

PANG Yuefeng,ZHANG Yue,ZHANG Qian,MA Zhanshun   

  1. Jiuquan Satellite Launch Center,Jiuquan 732750,China
  • Received:2018-02-02 Online:2019-02-15 Published:2019-01-02
  • Supported by:
    The Science and Research Program for Jiuquan Satellite Launch Center(2015ZKZ004)


Signal attenuation caused by the rocket tail flame is one of the key considerations in the design of launch vehicle and the selection of points on the ground. It is difficult for the equipment personnel to know the flight attitude of target and use the traditional method to calculate the flame angle. To solve these issues, based on the mathematical relationship between the positions of the stations, the angle of the flame and the pitch angle of the rocket during flight, a method of using the cosine of space between two vectors to calculate the included angle of the flame was proposed. The simplified method did not need to know the flight attitude parameters of the target. Compared with the traditional method, the calculated result error was less than 0.1°, which met the precision requirements of equipment station analysis. With use of the method, the signal reception affected by flame could be further estimated through calculating the angle of the flame in the target tracking process, which improved the rationality of equipment site selection.

Key words: telemetry equipment, flame attenuation, flame angle, β angle, cloth station, signal attenuation

CLC Number: 

  • TN850