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![Figure 2.2: Normalized autocorrelation functions for different modulations: BPSK of GPS L1,BOC of Galileo E1 with simplified demodulation4, CBOC of Galileo E1 and AltBOC of Galileo E5signals5. Source: [Silva et al., 2012]](https://stage.gpsworld.com/wp-content/uploads/2016/10/DesprezFig1.jpg)
