Application of the sequential (Multi-step) decision-making algorithm with the ability to meet reliability of decisions in radar target detection

Abstract

The paper presents the issue of improving the efficiency of the radar systems by flexibly extending the observation time. In this paper, a solution to apply the sequential (multistep) decision-making algorithm with the ability to meet the reliability of decisions in radar target detection is proposed. The analysis results show that this solution satisfies the required probability of true detection and false alarm with the same observation time as Wald's algorithm. The difference is that the solution takes into account the requirement of ensuring the reliability of the decisions and uses posteriori information about the probability of existence or non-existence of targets. In addition, the proposed solution ensures the necessary false alarm probability with the average number of observation cycles significantly smaller than the instantaneous (one-step) decision-making algorithm according to Neyman–Pearson criteria.