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利用舰艇编队形状(SSF)的预定目标选择方法(简称SSF方法)比传统方法具有更好的预定目标选择能力。为了检验SSF方法的适用性,研究了空舰导弹(ASM)获取SSF的能力。首先推导了末制导雷达(TGR)最小方位角搜索范围模型。据此模型可在给定发射距离下计算合适的末制导雷达方位角搜索范围,此方位角搜索范围既能保证编队录取概率为1,又能减少末制导雷达受干扰的几率。然后分析得到了编队分辨概率表达式,即获取完整编队的概率等于机载火控雷达(AFCR)和末制导雷达的编队录取概率与他们的编队分辨概率的乘积。接着分析了形状扭曲的来源,并给出完整编队下正确选择预定目标的概率表达式,该概率反映出形状扭曲程度对预定目标选择能力的影响。最后用获取完整编队并正确选择预定目标的概率表示空舰导弹获取SSF的能力。计算结果表明,空舰导弹适合利用编队形状来选择预定目标,当发射距离小于322.3km时,正确选择预定目标的概率大于0.547 8。
The predetermined target selection method (referred to as SSF method) which uses the shape of the ship formation (SSF) has better predetermined target selection ability than the traditional method. In order to test the applicability of the SSF method, the capability of the SSM to acquire SSF was studied. First, the minimum azimuth search range model of Terminal Guidance Radar (TGR) is deduced. According to this model, a suitable azimuth search range can be calculated for a given launch distance. This azimuth search range not only guarantees a formation admission probability of 1, but also reduces the probability of interference with the terminal guidance radar. Then the formation resolution probability of formation is obtained. That is, the probability of acquiring a complete formation is equal to the product of formation admission probability of airborne fire control radar (AFCR) and terminal guidance radar and their formation resolution probability. Then the source of shape distortion is analyzed and the probability expression of the correct choice of predetermined target under the complete formation is given. The probability reflects the influence of the degree of shape distortion on the ability of the target to be selected. Finally, the probability of obtaining an SSF for an air-to-air missile is obtained by using the probability of obtaining a complete formation and correctly selecting a predetermined target. The calculation results show that the spacecraft missile is suitable for the use of formation shape to select a predetermined target. When the launch distance is less than 322.3km, the probability of correctly selecting a predetermined target is greater than 0.547 8.