About: http://webisa.webdatacommons.org/163568691

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	In this system, there is an oscillator that generates a ramp-shaped modulated signal having a modulated oscillation frequency, which is emitted by an antenna.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com