<http://webisa.webdatacommons.org/206899835>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/206899835>	<http://www.w3.org/ns/prov#value>	"Further, the offset system is a system for shifting the phases of the modulation signal by 90??? in order to eliminate 180??? deviation which is the defect of the QPSK system." .
<http://webisa.webdatacommons.org/prov/272406364>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/206899835> .
<http://webisa.webdatacommons.org/206899835>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.es> .