Analysis of Missile Threat for Adaptive Closed-Loop Electronic Countermeasures

摘要

The ultimate objective of a closed-loop ECM has been identified as the maximization of the miss-distance. This objective can be pursued in many ways, among which is the induction of a circular orbit to the missile's seeker; this orbit is known to be achievable in the cases of conical-scan and SWIC radars. The real-time observables, or the prior knowledge which is required, determine the ECM effectiveness but it has been shown that even with very limited data the effectiveness is not degraded too much. In many cases, the general type of the missile can serve as a basis for a rough parameter estimation. For example, a long-range missile can generally be associated with a certain range of weights and thus with its appropriate time constants. Some prior intelligence information, especially regarding TSW, is always helpful and can save precious engagement time thus increasing the probability of obtaining a large miss. The dependence of the probability-density-function of the miss-distance on the combined prior and real-time data should be further investigated. Most of the work reported here was concerned with only a particular ECM method (circular orbit).