Enhancing Weak-Signal Carrier Phase Tracking in GNSS Receivers

Figure 9

The phase error of the PLL over time for a selection of signal attenuations values of 9, 12, 15, and 18 dB for both PLLs which do not apply gain-compensation (a) and those which do (b).

(a) Non-gain-compensated PLL

(b) Gain-compensated PLL