Iowa State's Alexander Stoytchev and Vladimir Sukhoy have solved a 50-year-old puzzle in signal processing. They've formulated the "inverse chirp z-transform," an algorithm related to one that's ...

It was a 50-year-old puzzle in signal processing. That is, until last fall when two Iowa State engineers – Stoytchev and Vladimir Sukhoy – announced in a research paper they had come up with a ...