The detection of narrowband tonals amid broadband noise is typically performed by an FFT processor followed by square law detection and integration. The use of an adaptive Time Domain filter to augment the processor has been shown to provide potential robustness in the processor for the case of nonideal broadband background noise. In this paper, the performance of an alternate frequency domain augmented narrowband processor is compared to the Time Domain adaptive filter. The detection performance of the two different augmented proc. essors is measured by means of Receiver Operator Characteristic (ROC) curves. It is shown that the detection performance for the two augmented processors is approximately the same for the case of large post detection time-bandwidth products.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.