The investigation of the transmitted signals started immediately after the launch of Compass -M1 on 14 April 2007. Soon after in June 2007, engineers at CNES reported the spectrum and structure of the signals. A month later, researchers from Stanford University reported the complete decoding of the “I” signals components. The knowledge of the codes allowed a group of engineers at Septentrio to build the COMPASS receiver and report tracking and multipath characteristics of the “I” signals on E2 and E5B. COUNT 5
QSN1 When did the investigation of the signals transmitted by Compass -M1 begin? ANS1 immediately after the launch of Compass -M1 on 14 April 2007 QSN2 What did engineers at CNES report in June 2007? ANS2 the spectrum and structure of the signals QSN3 Who reported the complete decoding of the “I” signals components? ANS3 researchers from Stanford University QSN4 Who built the COMPASS receiver? ANS4 a group of engineers at Septentrio QSN5 What was the purpose of building the COMPASS receiver? ANS5 report tracking and multipath characteristics of the “I” signals on E2 and E5B