About: http://webisa.webdatacommons.org/194876341

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	However, because of signal degradation and distortions due to all forms of time delays, propagation delays, Doppler shifting, and noise, it is necessary to compensate for the frequency and/or time shifting of the waveform.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com