Research on On-Call Searching Submarine Effectiveness of Anti-submarine Helicopter based on Passive Sonobuoy

Based on the problem of on-call searching submarine of anti-submarine helicopter, the submarine’s position distribution is researched and the results are proven that the position distribution submits to Rayleigh distribution in polar coordinates, and the speed of submarine also submits to Rayleigh distribution, and then the two important conclusions are obtained, that is, searching submarine based on passive sonobuoy, the first sonobuoy should be placed in the diving position of the submarine; under special conditions, the result of the search submarine of circular array is the best, followed by square, triangular, annular array. Finally, Monte Carlo method is used to verify the reasonality of the conclusion.