Influence of the impulse noise in recurrent Track-Before-Detect Algorithms is considered in this paper. Impulse noise from the object should improve tracking performance but it is not true. This is the SNR paradox that could be explained using Markov matrix theorem. Suppression of the signal value using threshold techniques improves output SNR. Description of this effect is detailed shown in th...

This report describes the performance prediction models for the passive narrowband (PNB) and passive broadband (PBB) automated detection (AD) modes of ARCI and APB 1. Ideal lower bounds on detection performance are formally derived for known target bearings and frequencies. These results are used later in the report to bound the range of detection degradation for estimated target tracks. The mo...