一种简化的火焰夹角计算方法及其遥测布站应用

doi:10.16180/j.cnki.issn1007-7820.2019.02.009

Abstract

Abstract:

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

PANG Yuefeng,ZHANG Yue,ZHANG Qian,MA Zhanshun. Simplified Calculation Method of Jet Flame Angle and Telemetry Cloth Station Application[J].Electronic Science and Technology, 2019, 32(2): 42-46.

Figures/Tables 7

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References 16

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计算方法	弹道1	弹道2	弹道3	弹道4	弹道5
传统方法/(°)	14.82	8.85	21.34	4.37	18.04
简化方法/(°)	14.75	8.91	21.26	4.44	17.95
误差/(°)	0.07	0.06	0.08	0.07	0.09

发射点	射向	火焰夹角最小值/(°)		火焰夹角<8°时长/s
		A点位	B点位	A点位	B点位
发射点1	射向1	9.51	9.68	0	0
	射向2	10.67	10.21	0	0
发射点2	射向3	8.06	9.25	2	0
	射向4	1.42	14.3	32	0
	射向5	7.64	12.7	7	0
	射向6	1.98	15.2	24	0
发射点3	射向7	12.3	13.5	0	0

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

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