Refractivity estimation from radar clutter by sequential importance sampling with a Markov model for microwave propagation. - Sathyanarayanan Vasudevan; Jeffrey L. Krolik (ICASSP, 2001)

Map sequence estimation of microwave refractivity from radar clutter via a particle filtering implementation of the Viterbi algorithm. - Sathyanarayanan Vasudevan; Richard H. Anderson; Jeffrey L. Krolik (ICASSP, 2002)