%0 Journal Article %T Srinivasa Ramanujan and signal-processing problems %A Palghat P. Vaidyanathan %A Srikanth Tenneti %J - %D 2020 %R 10.1098/rsta.2018.0446 %X The Ramanujan sum cq(n) has been used by mathematicians to derive many important infinite series expansions for arithmetic-functions in number theory. Interestingly, this sum has many properties wh.. %U https://royalsocietypublishing.org/doi/10.1098/rsta.2018.0446