To improve the proximity fuze anti-jamming capacity of anti-radiation missile(ARM),a method was put forward,which chose the proximity fuze starting position with the use of angular information measured by passive radar seeker.On the terminal trajectory,the statistic relationship between angular measurement information from the seeker and the missile-target distance was analyzed.The criterion of starting the proximity fuze was set up by judging whether ARM could hit or miss the radar target antenna.Based on the assumption of seeker angular measurement error obeying uniformity distribution,and with the principles of “start before the latest position” and “start as late as possible”,the upper and lower limits of missile-target distance PDF(Probability Distribution Function)were discussed respectively when the proximity fuze started to work.Aiming at the typical parameters of ARM and target,a simulation was carried out.The results show that the method can ensure the proximity fuze starting at proper position on the terminal trajectory,and the proximity fuze anti-jamming capability is improved effectively.
Key words
anti-radiation missile /
radar seeker /
angular measurement /
exterior trajectory /
fuze /
probability distribution function
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Footnotes
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