Detection of low probability of interception signals in bases of almost periodical functions

In This work a new basis for representation a low probability of interception (LPI) signal under digital electronic supported measures (ESM) of their detection considered. An analog-to-digital conversation (ADC) noise model and adaptation of ADC and Fourier processors and its criteria established. A way of detection of the LPI signal with unknown parameters presented. The bases of periodically correlated stochastic consequence representation used. Comparative analysis of obtained graphic probability of detection vs. signal-to-noise ratio at different fault probabilities families for optimal and presented methods are discussed.