Probability of detection improvements based upon scan rate regulation, fuzzy control rules, and scan-to-scan processing

摘要

The objective of this research is to improve monostatic radar detection performance via scan-to-scan processing (SSP) and scan rate modulation (SRM). This concept employs two mechanically scanned radars (MSRs), scanning at different scan rate. The scan rate modulation increases the probability of detection and scan-to-scan processing reduces the probability of false alarm. Our goal is to characterize the performance at the fusion area and to control the scan rate inside the fusion area to provide the minimum satisfactory probability of detection per scan with highest scan rate. Decreasing the fusion scan time increases the number of scans, which improve the cumulative probability of detection inside (and outside) the fusion area. The scan inside the fusion area is regulated for each antenna beam. Once a detection is declared the estimator predict the target appearance position and time within the fusion area. Then the controller uses a rule matrix to select the best scan rate to improve the total performance inside and outside the fusion area.