Abstract
A radome aberration causes degradation of miss distance as well as system stability at high altitude and high maneuver missile with RF seeker. These kinds of effectiveness have been already known well and many counter compensation techniques have been investigated. In this paper, proposed adaptive Particle filter estimates LOS rate excluding the radome induced error. Adaptive concept is very efficient in this problem because the actual radome aberration error is time varied and would not have Gaussian distribution. Particles of this filter are propagated and re-sampled such as conventional Particle filter, however, parameter value is changed as filter step progresses. LOS rate is allocated in particles and radome aberration error is defined to unknown parameter in this paper. Simulation results show that an estimated LOS rate yielded by adaptive Particle filter permits enhanced stability and considerable reduction of miss distance. Moreover, estimated LOS rate rapidly converges for varying radome error with non-constant slope.
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