Comparison of uncertainty relations in quantum mechanics and signal processingUdal, Andres; Kukk, Vello; Velmre, Enn; Klopov, Mihhail11th International Conference on Squeezed States and Uncertainty Relations and 4th Feynman Festival : June 22-26, 2009, Olomouc, Czech Republic : book of abstracts2009 / p. 135-136 https://jointlab.upol.cz/icssur2009/doc/bookabs_2nded.pdf