About: http://webisa.webdatacommons.org/233655032

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The IF signal is a piecewise constant oscillating signal, with a frequency proportional to the distance to the reflecting surface.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com