One of the most important method of estimating and graphing the underlying density is kernel density estimation (KDE). In this paper, we present basic knowledge of KDE, and simulations were carried out which compare three bandwidth selection methods [Normal rule of thumb (NROT), Least squares cross-validation (LSCV), and Biased cross-validation (BCV)]. Four types of kernel (Standard Normal, Biweight, Laplacian, Rational Quadratic and Circular) are chosen to do the simulation. Results shows that overall LSCV performs best.
Spread-spectrum technology produces a transmitted spectrum much wider than the minimum bandwidth required and links as a means of overcoming intentional jamming. In this paper, we provide a brief outline of the theory of the spread-spectrum technique. Then we apply this technique to FSK system and give simulation results.
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.